Abaca

== Description ==
A name used for both a banana-like plant (Musa textilis) as well as the strong fibers obtained from its leaf stems. The plant is native to the Philippines. It was exported to Europe and elsewhere in the 19th century and is now cultivated in Central America. Abaca fibers contain cellulose and lignin (~7%). Formerly known as Manila hemp, the fibers are lustrous and range in color from cream to light purple to brown or black. The texture of the fibers vary from silky to stiff. Abaca fiber is extensively used for rope, especially in marine environments since it is buoyant and does not swell in water. Coarse fibers are used for heavy cordage, twine, hats, hammocks, manila paper, and tissue paper. Fine, glossy fibers of abaca, called pinukpok or lupis, are used to make fabric for carpet, tablecloths, placemats, purses, rugs and ethnic costumes. Waste fibers are used to produce papers with high wet strength, such as tea bags and banknotes.
== Synonyms and Related Terms ==
Musa textilis; Manila fiber; Manila hemp; Manilla hemp (Br.); abacá (Esp., Port.); manila; pinukpok; lupis; agotai; cebu hemp; davao hemp; abaka; medrinaque; nipis (Phillipines)
== Applications == 
Sheets of un-buffered abaca paper are used in museums for (PACCIN 2010):
* Storing protein-based materials (fur, leather, silk, wool), and other materials sensitive to alkali. 
* Cushioning fragile or intricate artifacts with complex forms. 
* Padding out silk and other fragile textiles. 
* Hinging in matting and framing
* Protective covering for works of art on paper and photography.
== Personal Risks ==
Combustible, but self-extinguishing.
== Collection Risks ==
Links to Oddy Test results posted on AIC Wiki Materials Database Pages for individual materials below
° TPB004003 Tissue Paper Tested in 2018
== Physical and Chemical Properties ==
Does not swell or lose strength in water. Fiber length = 1 - 5 m (3-15 feet). Denier ranges from 300-500
Paper fiber type: Non-woody/bast. Using transmitted light microscopy, fibers are identified by their uniform shape, thin walls, and pointed ends. Fibers are relatively short with a wide, well-defined lumen. Appearance with Graff "C" stain: Nodes will stain red. Average dimensions of fibers: length, 5-6mm. 20-24μm wide. Common pulping method: alkaline sulfite.
== Working Properties ==
== Forms and Sizes == 
Abaca tissue is commonly found in pre-cut sheets typically 24" x 36”; rolls 36" to 65” wide. Weights range from 9 g/m2 to over 21 g/m2.
== Comparisons ==
== Additional Images ==
File:abaca_proc_det.jpg|Abaca
File:Abaca 10x.jpg|Abaca pulp stained with Graff "C" Stain
File:Abaca 40x.jpg|Abaca pulp stained with Graff "C" Stain
== Resources and Citations ==
* Wikipedia: Abaca Accessed Nov. 2023
* G.Cook, Handbook of Textile Fibres:I. Natural Fibres, 5th edition, Merrow Publishing Co., Durham, England, 1984.
* Preparation, Art Handling, Collections Care Information Network (PACCIN) 
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993 Comment: fibers 1-3 m in length
* Anne Grimmer, Glossary of Building Stone Terms, A Glossary of Historic Masonry Deterioration Problems and Preservation Treatments, National Park Service, Washington DC, 1984
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971
* ASTM, Standard Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials, Annual Book of ASTM Standards, Section 14, General Methods and Instrumentation, ASTM, G113, 1371-1373, Sep-94
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998 Comment: fibers up to 5 m in length
* Fairchild's Dictionary of Textiles, Phyllis G.Tortora, Robert S. Merkel (eds.), Fairchild Publications, New York City, 7th edition, 1996
* Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982 Comment: fibers 3-12 mm in paper
* Marja-Sisko Ilvessalo-Pfäffli. Fiber Atlas: Identification of Papermaking Fibers (Springer Series in Wood Science). Springer, 1995. 
* Walter Rantanen. "Fiber ID Course." Integrated Paper Services. June 2013. Lecture.
* Rosalie Rosso King, Textile Identification, Conservation, and Preservation, Noyes Publications, Park Ridge, NJ, 1985 Comment: fibers 1-3 m (text); fibers 5-11.5 feet in length (table)
* Book and Paper Group, Paper Conservation Catalog, AIC, 1984, 1989
* Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
Category:Materials database Category:MWG category:PACCINCategory:Sheet, CelluloseCategory: CushioningCategory: Interleaving