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GB1034558A - Process for dyeing microporous polyurethane material - Google Patents

Process for dyeing microporous polyurethane material

Info

Publication number
GB1034558A
GB1034558A GB5122864A GB5122864A GB1034558A GB 1034558 A GB1034558 A GB 1034558A GB 5122864 A GB5122864 A GB 5122864A GB 5122864 A GB5122864 A GB 5122864A GB 1034558 A GB1034558 A GB 1034558A
Authority
GB
United Kingdom
Prior art keywords
water
dyed
solubilising
contain
microporous
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
GB5122864A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1034558A publication Critical patent/GB1034558A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/36—After-treatment
    • C08J9/40—Impregnation
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0065—Organic pigments, e.g. dyes, brighteners
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/24—Polyamides; Polyurethanes
    • D06P3/241—Polyamides; Polyurethanes using acid dyes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Abstract

Sheets of microporous polyurethane material are dyed by immersing them in an aqueous dye solution at pH 3-9 containing a water-soluble anionic dye containing at least one water-solubilising group linked below with an empirical figure related to its water-solubilising power: -SO3- <FORM:1034558/D1-D2/1> -OH (0.25), -NH2 (0.25), -NH- (0.25), -OCH3 (0.25), -NH-CO-NH- (0.25), -SO2NH- (0.25), -SO2- (0.25) and -CONH- (0.25), the dye having an "equivalent weight" (its molecular weight divided by the sum of the solubilising values above) of 200-600, the dyed material being then masked in water and dried. The dyes are preferably anionic azo or anthraquinone dyes having an "equivalent weight" of 250-500. The process may be carried out by using a dyebath at 75-100 DEG C. initially at pH 7 and reducing to pH 5 by adding acetic, formic or citric acid. The microporous sheets may contain a porous fibrous substrate of many specified types especially polyethylene terephthalate fibre and the polyurethane may contain up to 50% of polyvinyl chloride. The dyed materials may be after-chromed to improve the fastness. Examples are given.
GB5122864A 1963-12-30 1964-12-16 Process for dyeing microporous polyurethane material Expired GB1034558A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33462163A 1963-12-30 1963-12-30

Publications (1)

Publication Number Publication Date
GB1034558A true GB1034558A (en) 1966-06-29

Family

ID=23308031

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5122864A Expired GB1034558A (en) 1963-12-30 1964-12-16 Process for dyeing microporous polyurethane material

Country Status (3)

Country Link
BE (1) BE657721A (en)
GB (1) GB1034558A (en)
NL (1) NL6415259A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015519481A (en) * 2012-04-02 2015-07-09 コーニング インコーポレイテッド Dark shade dyeing method for microporous track-etched membranes with large pores and low porosity
CN112575599A (en) * 2019-09-27 2021-03-30 台湾永光化学工业股份有限公司 Dyeing solution and method for molded foamed thermoplastic polyurethane and use of dyeing solution

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015519481A (en) * 2012-04-02 2015-07-09 コーニング インコーポレイテッド Dark shade dyeing method for microporous track-etched membranes with large pores and low porosity
EP2834406A4 (en) * 2012-04-02 2016-01-06 Corning Inc Dark shade dyeing method for microporous track etch membranes with large pores and low porosity
US9598817B2 (en) 2012-04-02 2017-03-21 Corning Incorporated Dark shade dyeing method for microporous track etch membranes with large pores and low porosity
CN112575599A (en) * 2019-09-27 2021-03-30 台湾永光化学工业股份有限公司 Dyeing solution and method for molded foamed thermoplastic polyurethane and use of dyeing solution

Also Published As

Publication number Publication date
NL6415259A (en) 1965-07-01
BE657721A (en) 1965-06-29

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