GB769174A - Improvements in or relating to the dying of suede leather - Google Patents

Improvements in or relating to the dying of suede leather

Info

Publication number
GB769174A
GB769174A GB14252/55A GB1425255A GB769174A GB 769174 A GB769174 A GB 769174A GB 14252/55 A GB14252/55 A GB 14252/55A GB 1425255 A GB1425255 A GB 1425255A GB 769174 A GB769174 A GB 769174A
Authority
GB
United Kingdom
Prior art keywords
dyestuff
leather
wetting agent
chrome
dyeing
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
GB14252/55A
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.)
Sandoz AG
Original Assignee
Sandoz AG
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 Sandoz AG filed Critical Sandoz AG
Publication of GB769174A publication Critical patent/GB769174A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • D06P3/32—Material containing basic nitrogen containing amide groups leather skins

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Abstract

Chrome, chrome-synthetic or chromealum tanned suede leather is dyed in level, deep shades by impregnating the dry leather in a rotating drum with a cold concentrated solution of an acid- or directdyestuff in the presence of a wetting agent until fully penetrated, continuing the dyeing process with an increased liquor ratio and finally completing it at a higher temperature with a second addition of dyestuff, if desired applied from a fresh bath. Inclusion of the wetting agent may be effected by treating the leather, during or after tanning, with an anionic, cationic or non-ionic fat-liquor which contains, or has an emulsifier containing, a hydrophilic group. Alternatively, the wetting agent may be added to the dyestuff or to the dyestuff solution. When applicable, the dyeing may be diazotized and developed. Numerous examples are given. Specifications 502.767 and 526,015 [both in Group IV] are referred to.
GB14252/55A 1954-05-25 1955-05-17 Improvements in or relating to the dying of suede leather Expired GB769174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH769174X 1954-05-25

Publications (1)

Publication Number Publication Date
GB769174A true GB769174A (en) 1957-02-27

Family

ID=4535258

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14252/55A Expired GB769174A (en) 1954-05-25 1955-05-17 Improvements in or relating to the dying of suede leather

Country Status (1)

Country Link
GB (1) GB769174A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272243A (en) 1978-12-29 1981-06-09 Basf Aktiengesellschaft Dyeing of grain leather
US4717390A (en) * 1985-01-30 1988-01-05 Sandoz Ltd. Method for dyeing leather with water-soluble sulpho group-containing sulphur dyes
CN107299468A (en) * 2017-06-25 2017-10-27 桐乡市卓源纺织有限公司 A kind of warp knit suede nap production technology

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272243A (en) 1978-12-29 1981-06-09 Basf Aktiengesellschaft Dyeing of grain leather
US4717390A (en) * 1985-01-30 1988-01-05 Sandoz Ltd. Method for dyeing leather with water-soluble sulpho group-containing sulphur dyes
CN107299468A (en) * 2017-06-25 2017-10-27 桐乡市卓源纺织有限公司 A kind of warp knit suede nap production technology

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