GB1042005A - Improvements in or relating to the manufacture of rayon paper and non-woven fabrics from viscose - Google Patents

Improvements in or relating to the manufacture of rayon paper and non-woven fabrics from viscose

Info

Publication number
GB1042005A
GB1042005A GB21771/63A GB2177163A GB1042005A GB 1042005 A GB1042005 A GB 1042005A GB 21771/63 A GB21771/63 A GB 21771/63A GB 2177163 A GB2177163 A GB 2177163A GB 1042005 A GB1042005 A GB 1042005A
Authority
GB
United Kingdom
Prior art keywords
filaments
bath
value
viscose
paper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB21771/63A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tachikawa Research Institute
Original Assignee
Tachikawa Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tachikawa Research Institute filed Critical Tachikawa Research Institute
Publication of GB1042005A publication Critical patent/GB1042005A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/02—Synthetic cellulose fibres
    • D21H13/08—Synthetic cellulose fibres from regenerated cellulose
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
    • D01F2/08—Composition of the spinning solution or the bath

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
  • Paper (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

Rayon paper or a non-woven fabric is made by dispersing in water staple fibres formed from incompletely regenerated filaments obtained by wet-spinning viscose, said filaments having a "primary swelling value" of 250 to 2400% and a residual gamma value of 2 to 20 and thereafter forming paper or a non-woven fabric from the resulting dispersion. The "primary swelling value" of the filaments is determined by steeping a known weight of the bone dry filaments in water at 20 DEG C. for 5 minutes, centrifuging the swollen filaments thereby obtained at a centrifugal force of 1000G for 3 minutes and then reweighing the filaments. The "primary swelling value" is calculated according to the formula (W/WD) 100%, wherein W is the weight of the hydroextracted filaments and WD the weight of the bone-dry filaments. Incompletely regenerated cellulose suitable for the process of the invention, having a denier of 1 to 10 and a primary swelling value of 250 to 800% may be obtained by spinning viscose into an aqueous coagulating bath containing at least 250g/1 of sodium sulphate, less than 20g/1 of zinc sulphate and less than 30g/1 of sulphuric acid, and which is at a temperature of 10 to 45 DEG C., the filaments being in the bath for from 0.6 to 1.2 seconds and the bath liquor being removed from the filaments by stretching them by from 50 to 150% after their removal from the bath. Alternatively filaments suitable for the process of the invention, having a denier of 1 to 10 and a primary swelling value of 250 to 1900% may be obtained by spinning viscose the cellulose in which has a D.P. value of from 450 to 900 and which viscose has a gamma value of 60 to 100 into an aqueous coagulating bath which contains 30 to 300g/1 of sodium sulphate, 0.1 to 2.0g/1 of zinc sulphate and 3 to 25g/1 of sulphuric acid and which is maintained at 10 to 45 DEG C., the filaments being in the bath for 0.6 to 1.2 seconds and stretched by 150 to 220% after their removal from the bath. The staple fibres into which the filaments are cut may be from 2mm. to 20mm. in length. Paper and non-woven fabrics may be produced from the aqueous dispersions of the staple fibres by conventional methods. The water swollen fibres passes sufficient bonding power to render it unnecessary to add a binder, such as a synthetic high polymer, to the dispersion prior to making paper or woven fabrics therefrom.
GB21771/63A 1962-05-31 1963-05-30 Improvements in or relating to the manufacture of rayon paper and non-woven fabrics from viscose Expired GB1042005A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2169562 1962-05-31
JP2057463 1963-04-20

Publications (1)

Publication Number Publication Date
GB1042005A true GB1042005A (en) 1966-09-07

Family

ID=26357549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21771/63A Expired GB1042005A (en) 1962-05-31 1963-05-30 Improvements in or relating to the manufacture of rayon paper and non-woven fabrics from viscose

Country Status (7)

Country Link
US (1) US3320117A (en)
AT (1) AT273657B (en)
BE (1) BE633044A (en)
CH (1) CH413581A (en)
DE (2) DE1794163A1 (en)
GB (1) GB1042005A (en)
NL (2) NL293506A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL134509C (en) * 1965-08-03
US3870596A (en) * 1971-06-22 1975-03-11 Tachikawa Res Inst Process for the preparation of dispersion water for incompletely regenerated cellulose substance
JPS531842B2 (en) * 1973-06-18 1978-01-23
US3901760A (en) * 1973-12-07 1975-08-26 Tachikawa Res Inst Method for the aftertreatment of paper or nonwoven fabrics made of incompletely regenerated viscose fibers
US4425126A (en) 1979-12-28 1984-01-10 Johnson & Johnson Baby Products Company Fibrous material and method of making the same using thermoplastic synthetic wood pulp fibers
US4392861A (en) * 1980-10-14 1983-07-12 Johnson & Johnson Baby Products Company Two-ply fibrous facing material
US20020164913A1 (en) * 2001-05-04 2002-11-07 Pieters Gerogeann Composite material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL246561A (en) * 1958-12-31
US3114747A (en) * 1959-03-26 1963-12-17 Du Pont Process for producing a fibrous regenerated cellulose precipitate
US3173830A (en) * 1959-06-16 1965-03-16 Courtaulds Ltd Paper comprising collapsed regenerated cellulose fibers
US3156605A (en) * 1960-03-25 1964-11-10 Fmc Corp Regenerated cellulose fiber
BE624034A (en) * 1962-11-14

Also Published As

Publication number Publication date
DE1300824B (en) 1969-08-07
DE1794163A1 (en) 1971-01-28
NL131600C (en)
CH413581A (en) 1966-05-15
NL293506A (en)
AT273657B (en) 1969-08-25
BE633044A (en)
US3320117A (en) 1967-05-16

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