GB1242616A - Process for producing polyvinyl alcohol filaments - Google Patents

Process for producing polyvinyl alcohol filaments

Info

Publication number
GB1242616A
GB1242616A GB37379/69A GB3737969A GB1242616A GB 1242616 A GB1242616 A GB 1242616A GB 37379/69 A GB37379/69 A GB 37379/69A GB 3737969 A GB3737969 A GB 3737969A GB 1242616 A GB1242616 A GB 1242616A
Authority
GB
United Kingdom
Prior art keywords
polyvinyl alcohol
filaments
draw ratio
sodium
july
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
GB37379/69A
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.)
Kuraray Co Ltd
Original Assignee
Kuraray Co Ltd
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 Kuraray Co Ltd filed Critical Kuraray Co Ltd
Publication of GB1242616A publication Critical patent/GB1242616A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/06—Wet spinning methods
    • 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
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/14—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals

Abstract

1,242,616. Polyvinyl alcohol filaments. KURARAY CO. Ltd. 24 July, 1969 [26 July, 1968], No. 37379/69. Heading B5B. Polyvinyl alcohol filaments of circular crosssection are made by spinning 10 to 30% by weight polyvinyl alcohol aqueous solution of pH 3 to 5 and preferably at 20 to 40‹ C. containing 1 to 5 weight per cent based on the PVA of a water soluble borate salt or bone acid into an aqueous coagulation bath of pH 13À5 to 14 containing 20 to 100 g./l. alkali metal hydroxide and 100 to 180 g./l. sodium sulphate. The soluble salt may be sodium or potassium borate. The alkali metal hydroxide may be sodium or potassium hydroxide. In the examples the as-spun filaments are drawn at a temperature of 15‹ to 35‹ C. at a draw ratio of 2:1, neutralized in a bath containing from 60 to 80 g./l. sulphuric acid and 300 g./l. anhydrous sodium sulphate then submitted to wet-drawing at 15‹ to 35‹ C. at a draw ratio of 2:1 to 3:1, water washed and then dry-heat drawn at a draw ratio at 3:1 to 4:1 1 at 15‹ to 35‹ C. to result in a total draw ratio of 12:1 to 20:1. The filaments so produced have good retention of their extruded cross-section, a homogeneous and compact structure and good drawability.
GB37379/69A 1968-07-26 1969-07-24 Process for producing polyvinyl alcohol filaments Expired GB1242616A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5323068 1968-07-26

Publications (1)

Publication Number Publication Date
GB1242616A true GB1242616A (en) 1971-08-11

Family

ID=12937004

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37379/69A Expired GB1242616A (en) 1968-07-26 1969-07-24 Process for producing polyvinyl alcohol filaments

Country Status (4)

Country Link
US (1) US3660556A (en)
DE (1) DE1937985A1 (en)
FR (1) FR2014748A1 (en)
GB (1) GB1242616A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852402A (en) * 1969-11-25 1974-12-03 S Tanaka Process for the preparation of polyvinyl alcohol fibers
NL7304787A (en) * 1972-04-11 1973-10-15
JPS5237830A (en) * 1975-09-19 1977-03-24 Kuraray Co Ltd Polyvinyl alcohol hollow fibers for dialysis
US4599267A (en) * 1982-09-30 1986-07-08 Allied Corporation High strength and modulus polyvinyl alcohol fibers and method of their preparation
US4440711A (en) * 1982-09-30 1984-04-03 Allied Corporation Method of preparing high strength and modulus polyvinyl alcohol fibers
US4478971A (en) * 1983-07-08 1984-10-23 Shakespeare Company High temperature extruded polyvinyl alcohol monofilament and process for the preparation thereof
JPS60162805A (en) * 1984-01-31 1985-08-24 Kuraray Co Ltd High-tenacity polyvinyl alcohol based ultrafine fiber and production thereof
US6743273B2 (en) † 2000-09-05 2004-06-01 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
FR2828500B1 (en) * 2001-08-08 2004-08-27 Centre Nat Rech Scient PROCESS FOR REFORMING COMPOSITE FIBERS AND APPLICATIONS
JP4301558B2 (en) * 2003-12-26 2009-07-22 日東電工株式会社 Adhesive for polarizing plate, polarizing plate, method for producing the same, optical film, and image display device
CN111101219B (en) * 2018-10-26 2022-08-12 中国石油化工股份有限公司 High-strength high-modulus polyvinyl alcohol filament and preparation method thereof

Also Published As

Publication number Publication date
DE1937985A1 (en) 1970-02-26
US3660556A (en) 1972-05-02
FR2014748A1 (en) 1970-04-17

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