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US3800375A
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Cross dyeing fiber blends of polyurethane, polyacrylate or butadiene-acrylonitrile copolymer coated cotton fibers with disperse and reactive dyes
Assignee: United States Department of Agriculture
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Filing: 1971-11-05
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Granted: 1974-04-02
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Expires: 1991-11-05
Abstract
Abstract A process has been developed for cross-dyeing cellulosic fabrics. This process consists of weaving certain polymer treated or polymer and crosslinking agent treated yarns into a fabric. Then the fabric is dyed with a disperse dye and a cotton dye. The polymer treated yarns are dyed with a disperse dye while the nonpolymer treated yarns are dyed with the cotton dye. This yields a cross-dyed fabric. The polymer treated yarns used in weaving are produced either by direct treatment, skein treatment or by knitting a fabric, treating the knit, deknitting and using these yarns in weaving.
Inventors
- 👤 R Harper
- 👤 E Blanchard
- 👤 J Lofton
- 👤 G Gautreaux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:45
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/002; D06; D06P; D06P3/00; D06P3/82; D06P3/854
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
11 words
The process of claim 1 wherein the polymer is a polyurethane.
Claim 2
Dependent Claim
11 words
The process of claim 1 wherein the polymer is a polyacrylate.
Claim 3
Dependent Claim
12 words
The process of claim 1 wherein the polymer is a butadiene-acrylonitrile copolymer.
Claim 4
Dependent Claim
13 words
The process of claim 1 wherein the fabric is crosslinked prior to dyeing.
Claim 5
Dependent Claim
154 words
A process for producing a cross-dyed cotton fabric, which process consists of: a. knitting a fabric from a selected yarn portion of the total yarns that are to be formed into the fabric, b. treating the knitted fabric from step (a) with 1-25 weight percent, based on the weight of the knitted fabric, of a polymer selected from the group consisting of a polyurethane, a polyacrylate, and a butadiene-acrylonitrile copolymer. c. deknitting the polymer treated knit fabric from step (b), d. forming the total yarns, including the knitted, polymer treated and deknitted yarn portion, into a fabric, e. dyeing the formed fabric from step (d) with a cotton reactive dye and subsequently with a disperse dye, thereby to produce a dyed fabric wherein the polymer treated yarn portions of the fabric are dyed the color of the disperse dye and the remainder of the yarns are dyed the color of the cotton reactive dye.
Claim 6
Dependent Claim
11 words
The process of claim 6 wherein the polymer is a polyurethane.
Claim 7
Dependent Claim
11 words
The process of claim 6 wherein the polymer is a polyacrylate.
Claim 8
Dependent Claim
12 words
The process of claim 6 wherein the polymer is a butadiene-acrylonitrile copolymer.
Claim 9
Dependent Claim
13 words
The process of claim 6 wherein the fabric is crosslinked prior to dyeing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |