US3989453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicoloring polyester textile materials with acid dyes
Assignee: CPFilms Inc
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Filing: 1974-01-11
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Granted: 1976-11-02
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Expires: 1994-01-11
Abstract
Abstract A process is disclosed for making a multicolored polyester material dyed with acid dyes for use as the face yarn of carpets, upholstery and apparel fabrics, which comprises treating a polyester material having an affinity for acid dyes with an aqueous solution or a printing paste of (A) a condensation product of (a) formaldehyde and (b) naphthalenesulfonic acid, phenol, sulfonated phenol, diaryl sulfone, urea, melamine, or dicyandiamide; and (B) a reactive or fiber-reactive compound which contains a chromophore, preferably but not necessarily colorless, and has attached to it a reactive group, which reacts readily with a nitrogen atom of the above-mentioned modified polyester material having an affinity for acid dyes, and then exposing same to steam or dry heat at a temperature between 100° C. and 200° C. for a period of 20 seconds to 20 minutes, thereby imparting to the treated polyester material ability to "resist" acid type dyes, so that the localized regions of the polyester material pre-treated with the above-mentioned impregnation-treatment will now "resist" acid dyestuffs applied later in the dyeing process whereby no coloration or coloration to a much lower depth is produced in the treated regions whereas very strong, bright and uniform coloration is produced due to acid dyes in the localized regions which were not pre-treated; thus resulting in a selective, multicoloration of the polyester material in a predetermined manner. The resulting acid-dyed multicolored polyester material is also described and claimed.
Inventors
- 👤 Dara Ardeshir Jilla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:13
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/12; D06P1/00; D06P1/38; D06P1/44; D06P1/62; D06P1/621; D06P1/622; D06P1/625; D06P3/00; D06P3/34; D06P3/52; D06P3/521; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/929
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
185 words
A process of making a multicolored polyester material dyed with acid dyes for use as the face yarn of carpets, upholstery of apparel fabric, which comprises taking a polyester material that has first been pretreated with a mixture of (1) an organic nitrogen compound and (2) a glycol, an alcohol, a ketone, an ether, or water to impart thereto an affinity for acid dyes, contacting the said pretreated polyester material with an aqueous solution or a printing paste of (A) a condensation product of (a) formaldehyde and (b) naphthalene-sulfonic acid, phenol, sulfonated phenol, diaryl sulfone, urea, melamine, or dicyandiamide; and (B) a fiber-reactive compound which contains a chromophore, and has attached to it a reactive group which reacts readily with a nitrogen atom of the above-mentioned pretreated polyester material having an affinity for acid dyes, and then exposing same to steam or dry heat at a temperature between 100° C and 200° C for a period of 20 seconds to 20 minutes, thereby imparting to the treated polyester material ability to "resist" acid type dyes, and thereafter over-dyeing the thus-treated polyester material with acid dyes.
Claim 2
Dependent Claim
185 words
A process of making a multicolored polyester material dyed with acid dyes for use as the face yarn of carpets, upholstery of apparel fabric, which comprises taking a polyester material that has first been pretreated with a mixture of (1) an organic nitrogen compound and (2) a glycol, an alcohol, a ketone, an ether, or water to impart thereto an affinity for acid dyes, contacting the said pretreated polyester material with an aqueous solution or a printing paste of (A) a condensation product of (a) formaldehyde and (b) naphthalene-sulfonic acid, phenol, sulfonated phenol, diaryl sulfone, urea, melamine, or dicyandiamide; and (B) a fiber-reactive compound which contains a chromophore, and has attached to it a reactive group which reacts readily with a nitrogen atom of the above-mentioned pretreated polyester material having an affinity for acid dyes, and then exposing same to steam or dry heat at a temperature between 100° C and 200° C for a period of 20 seconds to 20 minutes, thereby imparting to the treated polyester material ability to "resist" acid type dyes, and thereafter over-dyeing the thus-treated polyester material with acid dyes.
Claim 3
Dependent Claim
54 words
A process as defined in claim 1, wherein the impregnation-treatment bath with which the polyester material is pretreated is a fiber-reactive compound which contains a chromophore having attached to it a reactive group selected from the class consisting of mono- or dichlorotriazine; mono- or dichlorotriazinyl; vinylsulphonyl; trichloropyrimidinyl; dichloropyridazonly; dichlorophthalazine carbonyl; chloroquinoxaline; acryloylamido; and chlorobenzothiazolsulphonyl.
Claim 4
Dependent Claim
25 words
A process as defined in claim 1, wherein the textile material undergoing treatment is in the form of a bundle of continuous filament multi-filament yarn.
Claim 5
Dependent Claim
24 words
A process as defined in claim 1, wherein the textile material undergoing treatment is in the form of a bundle of staple fiber yarn.
Claim 6
Dependent Claim
58 words
A process of making a house furnishing fabric, which comprises producing a multicolored polyester finished face yarn by the process as defined in claim 1 so that different lengths of the yarn will have different colors, and forming a fabric of the finished face yarn having the yarn and its colors exposed at the face of said fabric.
Claim 7
Dependent Claim
18 words
A process as defined in claim 5, in which the finished face yarn is continuous filament multi-filament yarn.
Claim 8
Dependent Claim
17 words
A process as defined in claim 5, in which the finished face yarn is staple fiber yarn.
Claim 9
Dependent Claim
60 words
A process of making a house furnishing fabric, which comprises producing a multicolored, polyester finished face yarn by the process as defined in claim 1 so that different lengths of the yarn will have different colors, and forming a pile on a backing by tufting said finished face yarn through said backing, and exposing said yarn at the pile face.
Claim 10
Dependent Claim
34 words
A process as defined in claim 8, in which the color on the finished face yarn is in short section along the length of the yarn and simulates a nub effect in the pile.
Claim 11
Dependent Claim
24 words
A process as defined in claim 8, in which the pile face of the fabric produced includes uncut loops of said finished face yarn.
Claim 12
Dependent Claim
18 words
A process as defined in claim 8, in which the finished face yarn is continuous filament multi-filament yarn.
Claim 13
Dependent Claim
17 words
A process as defined in claim 8, in which the finished face yarn is staple fiber yarn.
Claim 14
Dependent Claim
25 words
A process as defined in claim 1, in which the said contacting step is carried out at temperatures ranging from ambient up to 80° C.
Claim 15
Dependent Claim
137 words
A process as defined in claim 1, wherein suitable localized regions of polyester material are contacted in a precise controlled manner with the said impregnation-treatment bath according to a predetermined pattern whereas other localized regions of the said polyester material are not contacted with the said impregnation-treatment bath; thus resulting in a selective multicoloration of the said polyester material with no coloration or coloration to a much lower depth produced due to acid dyes applied later in the dyeing process in the above-mentioned localized regions of the said polyester material which were contacted with the said impregnation-treatment bath whereas very strong, bright and uniform coloration will be produced due to acid dyes applied later in the dyeing process in the above-mentioned localized regions of the said polyester material which were not contacted with the said impregnation-treatment bath.
Claim 16
Dependent Claim
12 words
An acid-dyed multicolored polyester material produced by the process of claim 1.
Claim 17
Dependent Claim
20 words
The polyester material of claim 15, wherein the polyester material is in the form of a film, fiber or filament.
Claim 18
Dependent Claim
23 words
The polyester material of claim 15, wherein the polyester material is in the form of a multi-filament continuous filament or staple fiber yarn.
Claim 19
Dependent Claim
21 words
The polyester material of claim 15, wherein the polyester material is of woven, non-woven, knitted, tufted, needle-punched, flocked or laminated structure.
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) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |