JAIC 1994, Volume 33, Number 1, Article 3 (pp. 33 to 45)
JAIC online
Journal of the American Institute for Conservation
JAIC 1994, Volume 33, Number 1, Article 3 (pp. 33 to 45)

THE FRAKTUR: ITS HISTORY AND A CONSERVATION CASE STUDY

TED STANLEY

ABSTRACT—A short history of the fraktur in America is presented, focusing on the Protestant German community in Pennsylvania from the late 17th century to the mid-19th century. The conservation of an early 19th-century hand-colored fraktur represents a case study of an object with soluble pigments and an extremely fragile support. In addition, the treatment was complicated by the removal of a strong paper mount adhered with a tenacious starch-based adhesive from the verso of the object. An elaborate treatment plan was formulated to minimize the amount of water or moisture used throughout the various phases of the object's conservation. In this way the risk to water-soluble pigments would be minimal. Pigment sensitive to organic solvents was addressed, as well, by careful selection and use.The treatment used facings of heat-set tissue activated with toluene or set with Acryloid B-72 in toluene, a Gore-Tex humidification pack for the backing removal, ammonia water and methyl cellulose poultices for adhesive residue removal, and washing on a suction table with various dilutions of ethanol and water to remove degraded matter and bring a fresher appearance to the object. The final treatment to stabilize the paper support involved a two-step lining procedure that prelined the object on the suction table using carefully selected Japanese papers and ethanol added to wheat starch paste, and a finishing stretch-lining procedure on glass.


1 INTRODUCTION

The fraktur is one of the legacies of America's early cultural diversity. This form of manuscript folk art was popular among the Protestant German immigrants in Pennsylvania and an integral part of families and communities for more than 150 years. However, interest in the fraktur waned by the mid-19th century, and many deteriorated on walls and in drawers over the years. This article presents a concise historical background of the fraktur and the conservation case study of an extremely deteriorated early 19th-century fraktur birth-baptismal certificate, or Taufschein(fig. 1).

Fig. 1. Taufschein, 1800–23, before treatment. Collection of the Library of Congress


2 HISTORY OF THE FRAKTUR IN PENNSYLVANIA


2.1 IMMIGRATION

Fraktur-schrift, or “fraktur writing,” is a decorative calligraphy named after a 15th-century typeface called Fraktur (Lichten 1958). Fraktur lettering of the text and designs surrounding or embellishing the text are the two main elements of the fraktur. Religious hymns and scripture are sometimes contained in the text, but other types of frakturs were also produced. Some of these frakturs had very little text or sometimes none at all and were called Bilder, or “pictures,” by their makers (fig. 2)(Conner and Roberts 1988). The confirmation certificate (Confirmationsschein), the memorial (Denkmal), and the family register (Familien Register) were other types of fraktur documents. Frakturs also appeared in the form of broadsides, which served to disperse information throughout the community.

Fig. 2. Frakturs with little or no text were called Bilder, or “pictures,” by their makers.

The majority of frakturs in America date from about 1750 to 1860. They were at the peak of their popularity from 1800 to 1835. Frakturs were produced by Protestant groups from the Rhineland, Switzerland, and the surrounding regions who immigrated to the American colonies in the late 17th century seeking religious freedom. Many were Lutherans or members of Reform churches, but others were Moravians, Mennonites, Dunkers, Schwenkfelders, and Amish. The various groups settled along the Atlantic coast from Ontario to the Carolinas. They also pushed westward to the Ohio Valley. Protestant German immigrants settled Germantown, Pennsylvania, in 1683 and across southeastern Pennsylvania. They brought with them a strong cultural fervor that is reflected in their use of the fraktur.

Several distinct members of the Pennsylvania German community were active in producing frakturs. Ministers of the church made fraktur documents such as the Taufschein (birth or baptismal certificate), the Geburts (an early birth certificate form), the Traufschein (wedding certificate), and other church-related documents. The schoolmaster taught his pupils the fraktur form as part of their daily lessons. The Vorschrift, with copies or samples of the alphabet, was used in the classroom to teach lettering skills (fig. 3). Farmers also made frakturs, and the parochial schooling they received gave them the skills to create the calligraphy. In addition, itinerant artisans went from community to community producing frakturs for families desiring certificates for births and baptisms.

Fig. 3. Vorschrift were used in the classroom to teach lettering skills.


2.2 EVOLUTION

The fraktur, like the immigrants who brought it to America, began to lose its traditional European character over time. The first frakturs of the 18th-century Pennsylvania German community were written in German, with standardized format and text, and were completely hand lettered and painted. For a baptismal certificate, for example, the standardized format included the child's name, parents' names, date of birth, minister's name, date of the certificate, county, and village. Phrasing of the text varied somewhat from artist to artist, but the general content remained the same. The certificates contained religious text decorated with drawings and paintings of birds, stars, hearts, and animals that are associated with the Bible and the Creation. Few fraktur artists actually signed their work, and most often the artist is recognized today by his or her individual style and the content of the documents. The decorations of the certificate were at first a minor element in the manuscript, but eventually they came to dominate the format. The Taufschein's European folk motifs were eventually replaced by popular American motifs (Conner and Roberts 1988). Beginning in America the Taufschein gradually lost its association with the traditional European church practice of having the baptismal sponsor or godparent give a monetary gift wrapped in a hand-drawn greeting. The greeting included the child's name, and dates of birth and baptism (Weiser 1973). Over time it became an embellished document for record-keeping purposes only, and the baptismal and birth certificate documents gradually melded into a single document.

Other changes to the fraktur occurred in the late 18th century with the introduction of the printed fraktur. Local and itinerant artists filled in the appropriate information on woodcut prints that presented a standard format. Sometimes the artists also added embellishments at a later date. Because the certificates were usually produced and filled in long after a birth, the date on the certificate may or may not be the date of birth. In the late 18th century a heart- shaped border replaced the rectangular border as another variant of the fraktur (fig. 4). This version became the most popular of the frakturs (Ebert and Ebert 1975).

Fig. 4. A heart-shaped border replaced the rectangular border as a variant of the fraktur in the late 18th century.


2.3 ARTISTS' MATERIALS

The artists who produced handmade documents used commercially available pigments that were imported throughout the 18th century. Pigments included vermilion, gamboge, indigo, and orpiment (Lichten 1958). Osborne, a Philadelphia manufacturer, produced commercial watercolors by the 1820s (Lichten 1958). Given this location, a number of fraktur artists may have used his pigments. In the 19th century local presses printed books in German that specified what could have been 16th-century formulas for making colors (Lichten 1958). It is possible, however, that a few artists may have made their own colors. Binders for the pigments included traditional gum arabic and popular cherry tree gum, which imparted a gloss to the color. One schoolmaster's fraktur paint box was found to contain goose-quill pens and cat-hair brushes. Also included were caked pigments, homemade mixed pigments liquefied with whiskey, and cherry tree gum diluted in water (Ford 1949).

The papers used by artists and printers were available locally. Pennsylvania had many paper mills; the first paper mill in the American colonies was set up in Germantown by William Rittenhouse about 1689. Pietists from Germany built a paper mill at Ephrata, Lancaster County, around 1736 (Hunter 1978), which was most likely a paper source for the Ephrata Society's production of frakturs. One of the primary occupations of this society, founded in 1730 by Conrad Beissel, was producing frakturs in the manner of a medieval cloister (Lichten 1958). The nuns and monks of Ephrata produced the earliest frakturs in America (Ford 1949). By 1810 there were approximately 60 paper mills in Pennsylvania (Thomas 1970).

Printing houses proliferated in and around Germantown and Philadelphia. Like the wandering itinerant fraktur artists, printers used woodblocks in the 18th century. In the 19th century lithographic printing of frakturs replaced woodblock printing. By the 1830s Currier and Ives printed black-and-white as well as full-color frakturs (fig. 5).

Fig. 5. A fraktur printed by lithography. Lithography replaced woodblock printing in the 19th century.


2.4 DECLINE

As the 19th century progressed, so did the Pennsylvania German community. The fraktur, however, became an unfortunate casualty of change. There are several reasons for the dramatic decline of the fraktur. In general, the Americanization of the Pennsylvania German community slowly altered traditional customs. English began to supplant German, and German community schools, which had taught the skill of creating frakturs, began to disappear. With the close of the last “parochial” school in 1840, few frakturs were created (Ford 1949). Other community institutions suffered the same fate. The nationalistic fervor of the American Civil War may have further contributed to the decline of regional cultures such as that of the Pennsylvania Germans.


3 CONSERVATION CASE STUDY


3.1 DESCRIPTION OF THE OBJECT

The conservation case study is of a Taufschein in the fraktur collection of the Prints and Photographs Division of the Library of Congress (see fig. 1). The artist is unknown. The certificate is in the name of Maria Steiner, born 1800, the daughter of Michael and Lictin Steiner. Emanuel Schultz is listed on the document as the minister. The certificate was printed and written in German and executed in Dauphin County, Pennsylvania. The year 1823 is inscribed on the certificate, and it has been dated by the Library of Congress as executed between 1800 and 1823.

The artist used old-style rectangular borders for the format. The imagery is spiritual and joyous. A smiling face with rays of sunshine is centered directly above a circular wreath inside which the birth and baptismal information is recorded. On either side of the wreath is an angel dressed in deep red and blowing a horn. A background of dark blue grapes graces the scene. Below the scene, two heart shapes are inscribed with hymns and psalms. Each heart shape is crowned with a rose and a bird.

The certificate is a woodcut, with letterpress type, printed in black ink and embellished with watercolor. Iron gall ink script is also present. The deep reds and blues of the illustration appear somewhat dull and matte and were applied heavily. What appears to be gamboge (yellow) is prominent in the rays flowing from the face representing the sun and the large area around it. Gamboge was commonly used during this period on both sides of the Atlantic Ocean. What seems to be green verdigris, from its visual appearance, colors the inner border and outlines the shape of the hearts. The substrate is thin, handmade, laid paper, approximately 33 × 40 cm. A watermark is not present on the sheet.

The document had been mounted on two layers of a very modern, white, machine-made wove paper. The mount appeared to have been much too heavy for the object. The natural characteristics of the object's support had been lost because of the mount. The adhesive is a very tenacious water-soluble converted-starch paste. Several factors led the author to conclude that the adhesive used to adhere the object to the multilayered mount was most likely Yes paste. First, it tested positive for dextrine using the iodine staining test, which yielded a reddish color. Further, the makers of Yes paste, Brothers and Lane, confirmed that the company sold its product as a library paste to the U.S. Government Printing Office (GPO) during the 1960s, a period in which GPO restorators worked at the Library of Congress. The object's bond paper mount was also typical of GPO restoration. Additionally, former and senior conservation office staff members have also confirmed the use of Yes paste just prior to their arrival, when the practice was ended. It is not uncommon to encounter objects with this type of former restoration in the collections at the Library of Congress.

Brothers and Lane (1980) give this analysis of Yes: white appearance; pH 6; content a mixture of corn syrups (55%), water (32%), corn dextrins (12%), phosphoric acid (.02%), and humectants. Further investigation of the ingredients listed indicates that the corn syrup acts as a plasticizer to control brittleness and/or drying, the humectants are used to control moisture, and the phosphoric acid improves wetting and adhesion to the surface of the paper (Jarowenko 1977).


3.2 CONDITION

The paper was very weak and brittle. Stains and discoloration were present, as well as a number of lateral creases. Some losses had occurred along the edges of the document. Additional losses were present toward the interior. The verdigris, basic copper acetate, had caused losses around the outlines of the hearts and the inner border. Copper-based pigments have been identified as likely links to the disintegration of paper (Banik and Ponahlo 1982–83). Numerous major and minor tears ran across the substrate. The former restoration of the object left a number of tears overlapping. Some of the watercolor had suffered slight abrasion.


3.3 TREATMENT STRATEGIES

The conservation of the object posed several treatment problems. The iron gall ink, the printing ink, and the verdigris appeared to react only slightly adversely to water (distilled) after repeated exposure during spot testing of the pigment and ink. However, the red and blue watercolors were extremely soluble in water. Normally, a mixture of water and ethanol (absolute) is a good solution for the washing in such circumstances. However, gamboge pigment was present. This organic resin is very soluble in alcohol, as it proved to be in testing (Gettens and Stout 1966). The paper substrate was extremely weak and brittle and adhered with an extremely strong adhesive to its mount. The presence of numerous losses and tears overall complicated the backing removal of the weak paper support from the strong mount.

After thorough examination, a treatment plan was devised that took into consideration the problematic characteristics of the pigments, support, and mount. The plan involved light dry cleaning; facing the recto of the object to stabilize the weak substrate during removal of the backing; removal of the backing via Gore-Tex humidification or damp packs; reduction of adhesive residue; washing on the suction table with combinations of ethanol and water; and a two-step lining process. The primary goal of the plan was to minimize the amount of water used in the treatment to reduce the risk of altering the water-soluble pigments and damaging the fragile paper support.

There were several ways in which the presence of water was minimized during the treatment:

  1. The Gore-Tex damp pack allows the adhesive of the mount to swell in a controlled manner. Moisture enters the interstices of the paper without fully wetting the object, therefore posing less risk to the water-sensitive colors and the fragile paper substrate.
  2. Residual adhesive must be removed following the removal of the mount. The local use of ammoniated water (pH 9) via swabbing and 4% Dow A4M premium methyl cellulose poultices during the adhesive residue removal treatment reduces the threat to the watercolor.1 This precaution controls the amount of moisture present at the verso of the object, preventing moisture penetration through to the recto.
  3. Ethanol and water solutions used on the suction table during the washing phase maximize washing without endangering sensitive watercolor.2 Various solutions of ethanol and water were used, depending upon the solubility of a particular area. Also, testing showed that the watercolor exposed to a 70:30 solution of ethanol and water swelled only slightly and did not move laterally across or absorb into the paper. The gamboge was found to be stable in a 35:65 ethanol and water solution. Aqueous-sensitive watercolor swelled more in this solution but did not run or absorb into the substrate and was not otherwise endangered. The 35:65 ethanol and water solution safely treats adjacent alcohol-sensitive and water-sensitive areas. During the long washing procedure on the suction table, a 50:50 ethanol and water solution would be used sometimes to lightly rehumidify the object to compensate for evaporation in areas near ethanol or water-sensitive pigments. The suction table confines the various ethanol and water solutions to desired areas. Additional control of the washing solutions is attained by spraying and blocking areas of the object with blotters held above.
  4. Brittle paper has very little water content, and water rapidly evaporates from it once it is exposed to normal room relative humidity and temperature. In this respect, ethanol and water solutions have additional advantages. Application of these solutions controls the amount of paper expansion and seems to provide moisture for a longer period of time than simple humidification.
  5. Wheat starch paste saturated with ethanol minimizes the amount of water in the lining process, which may affect the aqueous-sensitive watercolor.3 It also controls unwanted further expansion of the object once the substrate is in contact with the lining adhesive.


3.4 TREATMENT


3.4.1 APPLICATION OF THE FACINGS

After the media-free borders were lightly dry cleaned with ground Staedtler Mars plastic erasers, the object was prepared for the backing removal by facing large areas of the recto with heat-set tissue. Library of Congress heat-set tissue adhesive (acrylic emulsions) specifications are as follows: 1 part Rhoplex AC-73; 1 part Rhoplex AC-234; and 1 part water. The adhesive is applied to lens tissue by brushing. The heat-set tissue was activated by applying toluene with a brush. A spatula gently tamped the heat-set tissue to the surface as the toluene was applied to assure adhesion. Four percent Acryloid B-72 (ethyl methacrylate copolymer) in toluene was used as a facing adhesive in those areas that needed additional strength and reinforcement. The B-72 was applied over the heat-set tissue with a brush and allowed to saturate through the heat-set tissue that was already attached to the surface. The use of toluene was very important since some of the weakened areas were underneath ethanol-sensitive gamboge. Gamboge was found to be stable in the presence of toluene. In addition, B-72 has been found to be extremely stable and reversible in toluene (Feller 1975). Since one can never be sure of the complete 100% removal of adhesive from paper, B-72 is a good choice as any extremely small trace residue of B-72 would most likely not harm the paper.


3.4.2 BACKING REMOVAL

The object was then placed in a Gore-Tex damp pack. The arrangement of the pack placed the object between two sheets of Gore-Tex barrier laminate with the membrane side against the object. The barrier laminate consists of a Gore-Tex membrane (polytetrafluoro-ethylene) laminated to a 1/16 in polyester felt. The Gore-Tex barrier laminate and object were then placed between a set of lightly dampened blotters. Sheets of Mylar (polyester film) covered the damp blotters, allowing the moisture to be forced through the Gore-Tex barrier laminate and into the object. The slight weight of a ¼ in felt was added.

The mount was peeled back very slowly after sufficient moisture had swelled the adhesive, but at the same time leaving the sensitive pigments unaffected. This degree of humidification took about 30 minutes. During the backing removal procedure only very small portions of the mount were removed at a time because of the fragility of the object's weak paper substrate. Small reinforcements of tengujo Japanese paper were adhered with wheat starch paste to the verso of the object as the backing was peeled back. The reinforcements secured and supported prior tears and weakened areas, thus helping to protect the substrate from undue stress as the backing procedure progressed. Often the object and mount became too dry after a short period of time and had to be rehumidified. Moisture had to be reintroduced to swell the adhesive via the humidification damp pack after a small area of the mount had been removed. The procedure had to be repeated numerous times. The complete backing removal treatment was accomplished over several days of tedious work. The mount was successfully removed intact from the object and without damage to the support, inks, or watercolor.

Examination of the object after removal of the backing revealed several former reinforcements as well as a thick adhesive residue layer. The adhesive layer caused the paper to be tight and cockled. The extent of the damage caused by the iron gall ink and the copper-based green pigment was evident by the losses in areas of the paper where the corrosive media were present. In addition, the verdigris was somewhat visible on the verso of the object. From the author's past experiences with the behavior of verdigris, two conclusions were drawn about its appearance. First, the appearance was most likely due to the prior restoration attempts. Such attempts may have exposed the support and pigment to an overabundance of moisture during treatment. The verdigris was then absorbed further into the paper. But it may also have been caused by the natural migration process of the corrosive pigment into paper over time. The slight amount of moisture used in the damp pack in the presence of a thick adhesive layer would not have caused the absorption of the verdigris to the verso in the manner that was evidenced.


3.4.3 ADHESIVE RESIDUE REMOVAL

Ammonia water (ammonia hydroxide) swells starch and starch-based adhesives, making them easier to reduce and remove. Ammonia water at pH 9 and cotton swabs and balls were used locally to remove the thick layer of adhesive residue. Dull knives and ammoniated methyl cellulose poultices applied directly on the adhesive also helped remove the residue. The dull knives removed the thick mass of the adhesive residue after it had been swelled by the poultices. Cotton swabs and balls slightly dampened with ammoniated water removed the remaining thin film of residue. Former reinforcements as well as some of my own reinforcements were removed from the verso of the object. The absorbance of moisture to the recto did not occur during the treatment. Overall, the object appeared much less cockled and tight as result of the treatment.


3.4.4 REMOVAL OF THE FACINGS

The heat-set tissue facings and B-72 adhesive were easily removed on the suction table by spraying with toluene and lifting the carrier with a pair of tweezers. A Crown Spra-tool spray gun operated by a pressurized can was used to apply the toluene. Examination after treatment revealed no damage or discoloration to the media or paper. Despite the fact that B-72 is chemically very stable, it is important to note that media and papers may darken when the B-72 is first applied, and the darkening will remain unless the adhesive residue is thoroughly removed.


3.4.5 SUCTION TABLE WASHING

Washing the object on a suction table proved a good method for cleaning the object without subjecting the pigments to undue risk. A Maxwell suction table was prepared by masking off the top with polyester film. An opening was left at the center for the blotter support. A thin blotter was humidified with a 50:50 ethanol and water solution and placed in the opening.4

To expand and relax the object before it was placed on the suction table, it was sprayed with various solutions of 35:65, 70:30, and 50:50 ethanol and water solutions. In this way the sensitive pigments would not be affected during the procedure. While supported face up on a sheet of Hollytex (spun-bonded polyester web), the object was placed on top of a blotter resting on the unrestricted portion of the suction table. The suction table motor (explosion-proof) was first run at very slight vacuum pressure. Then the vacuum pressure was increased very slowly as the object was delicately manipulated to avoid creases as it flattened out.

Washing began with the suction table running at full vacuum pressure. Large bottles of ethanol and water solutions were prepared in advance so that they could be readily used to refill exhausted container bottles of the spray gun. The washing procedure used the same ethanol and water solutions used to humidify the object. Controlled spraying and the blocking of sensitive areas of the object with a blotter held 4–5 in above the object's surface helped to keep the pigments stable during the treatment. The blotter paper underneath the Hollytex was changed and examined several times during the treatment to evaluate the results of the washing. Washing was completed when the blotters indicated that no more discoloration could be removed from the object. The object was then air-dried and inspected. The watercolors and inks appeared unaffected, with no apparent lateral movement or absorption into the paper other than a very slight movement of the verdigris onto the blotter. Overall, staining and discoloration were diminished, and the object appeared brighter and fresher looking when it was visually examined.


3.4.6 THE LINING PROCESS

A two-step lining process was used to stabilize the fragile paper support. The first step involved performing a preliminary lining on the suction table. Using the suction table allowed good contact between the lining papers and the object and eliminated the need for manual pressure on the surface of the object to create a uniform bond between the primary support and the lining paper. In this way, contact with the delicate watercolor was avoided.

The lining began by setting up the suction table with areas of the surface masked off with polyester film in the same manner that was used to wash the object. A sheet of Hollytex was placed on the unrestricted area of the suction table. A thin, lightweight sheet of usui-usu-minogami Japanese paper was pasted with a Japanese paste brush on top of the Hollytex using a thin solution of ethanol-saturated wheat starch paste. Light vacuum pressure from the suction table ensured constant overall contact between the Hollytex and minogami surfaces.

Ethanol in the paste reduced the amount of water in the system that could affect the water-soluble pigments. Not enough ethanol was present, however, to harm the ethanol-sensitive gamboge. The procedure for making ethanol-saturated paste begins by mixing cooked and strained wheat starch paste with water using a Japanese paste brush until the desired consistency is found. A small amount of ethanol (5–10 ml) is added to about 1 liter of thinly blended paste. Some of the paste will congeal on contact with the ethanol. The ethanol is reducing the amount of water in the paste mixture through dissociation of the water molecule, thereby slightly solidifying the starch particles. The paste is then blended until it is smooth. A small amount of ethanol is again added and blended. The steps are repeated until the ethanol no longer blends into the paste. The paste is now saturated. A small amount of water is then added to finish blending the paste back to a smooth consistency.

Using the ethanol-saturated paste, a sheet of tengujo Japanese paper, which is very lightweight and thin, was then pasted on top of the minogami paper. The grain pattern of the minogami paper ensured that the lining and the object would contract in a similar dimensional pattern during the drying process. The tengujo paper provides a cushion that allowed the tears to remain seated properly during the contraction and drying phase. Both Japanese papers are thin and supple so that they did not overwhelm the natural characteristics of the object's support.

The object was placed on the lining after having been humidified and expanded with the same 35:65 and 70:30 ethanol and water solutions that were used to wash the object on the suction table. The ethanol and water solutions were sprayed lightly on the object. The object was gradually flattened out as the vacuum pressure was slowly raised. The lined object remained on the suction table under full suction for about 20 minutes, giving the lining the opportunity to achieve full contact with the object and a small amount of drying to occur.

The second stage of the lining procedure involved transferring the object to sanded 5 mil polyester and a sheet of glass for the stretch-drying phase. Sanded polyester film (Mylar) was used to avoid ferrotyping of the lining paper and to provide a bit of grab. A medium-grade sandpaper can be used to sand the polyester film, which should be sanded well enough to produce a completely opaque sheet. After sanding, the Mylar should be thoroughly washed to rinse away the fine polyester particles.

The technique is a modification of a lining method that is used at the conservation laboratory of the Bibliothèque Nationale in Paris. At the time the technique was introduced to the author in 1984, the staff usually employed Tylose (sodium hydroxymethyl cellulose) at approximately 2% as an adhesive. In this technique sanded polyester film is also placed on wet glass. The Japanese lining paper is then pasted on the sanded polyester (sanded side up). Then the object is placed on the lining paper and gently manipulated to achieve good overall contact. Linen cloth strips adhere the edges of the lining and the sanded polyester film. The object is then allowed to air dry.

The technique has a number of advantages. Contact with the object's surface can be avoided, which is a crucial point when lining objects with delicate media. Tears do not open or tent during the drying phase. Papers of the early and mid-1800s such as Whatman, which have severely disintegrated, are especially difficult to control and line when they have been poorly restored in the past. Tears that were overlapping and set during the lining procedure have a strong “memory” of their previously overlapped positions. A conventional lining, other stretch lining techniques, or even a suction table lining alone cannot always prevent the overlapping of tears from recurring. Stretch lining on sanded Mylar with multiple layers of Japanese paper prevents the phenomenon from occurring.

In general, it is a good idea to use multiple layers of Japanese papers when lining an object that has massive tears or losses no matter which lining system is used. Multiple layers of Japanese papers seem to give much better overall support to a heavily damaged object than a single layer. Two or three thin sheets of Japanese paper sometimes give better overall support than a single heavy sheet. As there are many Japanese papers with various characterist-ics and qualities, it is important to choose papers that are sympathetic to the characteristics of the object. In general, the lining promotes initial rapid drying that prevents tears from gradually moving and opening. It effectively complements the setting characteristics of the thin but supple tengujo Japanese paper.

The next step involved preparing the stretch-lining system. Sanded polyester film was placed on wet glass with the sanded side up. Water was sprayed on the glass to adhere the polyester film. As many of the air bubbles as possible were removed between the polyester film and glass to ensure overall contact. The lined object was removed from the suction table while it was still damp and placed on the sanded polyester film. Both the lining paper and the sanded polyester film were the same size. No pressure of any kind was used when the object was placed on the polyester. The lining paper was tacky enough with adhesive to allow for sufficient contact between the two surfaces without using mechanical pressure. The object was sprayed lightly with an ethanol and water solution to keep it from drying too rapidly at that point. Linen cloth restraining strips were liberally pasted with wheat starch paste and placed along the edge of the lining paper with wheat starch paste to restrain the object on the glass. The width of the cloth-restraining strips depend on the size and expansion-contraction characteristics of the object. A 30 × 20 in object with great expansion-contraction characteristics, for example, would most likely need a 3 in wide strip of cloth to prevent the lining from pulling itself off the glass or table during the drying period. Half of the restraining strip covers the lining paper.

The object was then air dried over several days. The drying time will depend on the relative humidity of the environment. It is important not to remove the lining from the restraints too early. As with any lining technique, the object will curl if it has not fully dried when it is removed from its restraint.

While the object was still attached to the glass, the losses were filled with gouache-toned kizukishi Japanese paper and retouched with fixed pastel. Wheat starch paste adhered the fills. Blotters and weights were not needed for fills to dry flat because the overall tension of the lining automatically flattened out the insert paper or pulp fill. The glass also made it convenient to work directly on a light table while filling the losses.

The object was removed from the glass by first peeling away the linen strips. A spatula was inserted under the edge of the lining paper and polyester film support, and the linen strips were slit away. The attached polyester film support was easily removed by turning the object face down on a clean blotter and peeling the polyester film away. The object's paper support appeared very relaxed and flat. To complete the treatment, the excess lining paper was sanded away using a sanding stick to create a softer appearance to the edge. The completed treatment revealed no change or disturbance in the appearance or characteristics of the media (fig. 6). The aesthetic integrity of the object was left intact while a stable support was provided.

Fig. 6. Figure 1, after treatment.


4 SUMMARY

Frakturs represent both the old and new worlds of folk art. They mark the cultural transition of generations and are also a window to the past. Their continued conservation and care are important. I have attempted to illustrate one approach toward their continued survival. As with any other artifact, frakturs exist in many forms of disrepair. There are a myriad of conservation treatment methods that can be used to preserve them. A conservator must thought-fully choose treatment methods and techniques according to the specific characteristics and condition as dictated by an individual object.


ACKNOWLEDGEMENTS

The author would like to thank Michele Hamill, Doris Hamburg, Lynn Kidder, and Bernard Reilly of the Library of Congress, and Anne Downey of the Conservation Center for Art and Historic Artifacts for their help in critiquing this article.


NOTES

. Ammonia most likely acts to dissociate the molecules of starch-based adhesives. The mild reaction increases the swelling and viscosity of the adhesive, thus making it easier to remove. Higher pH levels of the ammonia will increase the activity. In this respect, pH appears to be a determining factor in the partial depolymerization of the adhesive. The effect is similar to that of sodium tetraborate, which is used in the manufacture of certain starch-related adhesives to help increase swelling and viscosity. These adhesives have specific applications in the paper products industry.


NOTES

. Ethanol is highly soluble in water. This is due to the hydrogen bonds that are formed when the two molecules are mixed. Increasing the concentration of ethanol in the solution will protect water-sensitive pigments during the washing operation of an object.


NOTES

. Marion Dirda, a former Library of Congress senior paper conservator, introduced the technique to the author in the late 1970s and early 1980s.


NOTES

. Since the object's expansion was limited by the use of ethanol and water solution for humidification, it was important that the blotter be humidified in a similar manner. For instance, humidifying the blotter with only water might have allowed more moisture than desirable to be absorbed into the object on contact with the blotter. Such additional moisture in the support might affect water-soluble pigment and cause the support to expand. Not humidifying the blotter at all or humidifying it too little would have caused it to cockle immediately upon contact with the object by drawing moisture from the object. The cockled blotter would have quickly formed tight creases once the vacuum pressure from the table was increased, thereby creasing the object as well.



REFERENCES

Banik, G., and J.Ponahlo.1982–83. Some aspects of degradation phenomena of paper caused by green copper-containing pigments. Paper Conservator7: 3–7.

Brothers and Lane, Inc. 1980. Communication to the Library of Congress. Elk Grove Village, Ill. 60007.

Conner, P., and J.Roberts.1988. Pennsylvania German fraktur and printed broadsides. Washington, D.C.: Library of Congress. 11, 16.

Ebert, J., and K.Ebert.1975. American folk painters. New York: Scribner's. 181.

Feller, R. L.1975. Studies on the photochemical stability of thermoplastic resins.ICOM Committee for Conservation Preprints, 4th Triennial Meeting, Venice, 75/22/4 1–11.

Ford, A. E.1949. Pictorial folk art, New England to California. Woodstock, Vt.: Studio Publications. 32–33.

Gettens, R. J., and G. L.Stout.1966. Painting materials: A short encyclopedia. 1942. Reprint.New York: Dover Publications. 115.

Hunter, D.1978. Papermaking: The history and technique of an ancient craft. 1947. Reprint.New York: Dover Publications. 492.

Lichten, F.1958. Fraktur: The illuminated manuscripts of the Pennsylvania Dutch. Philadelphia: Free Library of Philadelphia. 5, 24.

Jarowenko, W.1977. Starch based adhesives. In Handbook of adhesives, 2d ed., ed.I.Skeist.New York: Van Nostrand Reinhold. 192–211.

Thomas, I.1970. The history of printing in America. New York: Weathervane Books.

Weiser, F. S.1973. Fraktur, Pennsylvania German folk art. Ephrata, Pa.: Science Press.



OTHER SOURCES

Banik, G.1989. Discoloration of green copper pigments in manuscripts and works of graphic art.Restaurator10(2): 61–73.

Browning, B. L.1977. Analysis of paper. 2d ed.New York: Marcel Dekker.

Harley, R. D.1982. Artist' pigments, c. 1600–1835. 2d ed.London: Butterworth Scientific.

Huffman, M. M.1982. Lutheranism takes root in the settlement of Pennsylvania, 1682–1982. Whitney, Pa.: Morna M. Huffman.

Hughs, S.1978. Washi, the world of Japanese paper. Tokyo: Kodansha International.

Weiser, F. S.1980. Baptismal certificates and gravemarkers: Pennsylvania German folk art at the beginning and at the end of life. In Perspectives on American folk art, ed.I.M.G.Quimby and S.T.Swank.New York: Norton. 135–61.

Yoder, D., V.Gunnion, and C.Hopf.1969. Pennsylvania German fraktur and color drawings. Landis Valley, Pa.: Landis Valley Associates.



SOURCES OF MATERIALS

Acrylic resins, spun-bonded polyester fabrics

Conservation Materials 1165 Marietta Way, Sparks, Nev. 89431

Blotter paper

Paper Technologies, 929 Calle Negocio, Unit D, San Clemente, Calif. 92673

Gore-Tex barrier laminate

W. L. Gore and Associates, Inc., P.O. Box 1550, Elkton, Md. 21922–1550

Japanese paper, kizukishi

BookMakers, 6000 66th Ave., Suite 101, Riverdale, Md. 20737

Japanese paper, usui-usu-minogami, tengujo

Hiromi Paper International, 4223 Glencoe Ave. #C–107, Marina del Rey, Calif. 90292

Leafcasting Equipment

Museum Services Corporation, 1107 East Cliff Rd., Burnsville, Minn. 55337

Methyl cellulose

Dow Chemical Company, Midland, Mich. 48674

Polyester film

Light Impressions, 439 Monroe Ave., Rochester, N.Y. 14607

Wheat paste

Talas, 213 West 35th St., New York, N.Y. 10001


AUTHOR INFORMATION

TED STANLEY is in charge of special collections conservation in the Rare Book and Special Collection Department of the Firestone Library as well as other special libraries at Princeton University. Before arriving at Princeton University, he was a senior paper conservator at the Library of Congress, where he was a staff member from 1976 to 1992. From 1984 to 1985, through the National Endowment for the Arts Fellowships for Museum Professionals Program, he worked on the conservation staffs of the Bibliothèque Nationale in Paris, France and the Centro Nationale de Conservacion y Restauracion de Bienes Culturales in Madrid, Spain, studying paper conservation. Address: Preservation Office, Firestone Library, Princeton University, One Washington Rd., Princeton, N.J. 08544.

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Copyright © 1994 American Institute for Conservation of Historic and Artistic Works