Patent US3891389A successfully refreshed from Google Patents.
US3891389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shrinkage-control treatment for knitted fabrics
Assignee: United States Department of Agriculture
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Filing: 1973-01-31
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Granted: 1975-06-24
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Expires: 1993-01-31
Abstract
Abstract Durable-press knitted fabrics of cotton or cotton-synthetic fiber blends have been rendered essentially stable to laundering. Resistance to dimensional change in laundering has been attained by inducing shrinkage through a wet or dry agitation after treatment. Relatively little loss of fabric area occurs in the process.
Inventors
- 👤 Gerald B Verburg
- 👤 Jr John G Frick
- 👤 John D Reid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:24
CPC Classifications
D; D06; D06C; D06C7/00; D06C7/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
51 words
IN THE PROCESS FO PRODUCING FINISHED, DURABLE-PRESSED, KNITTED, COTTON-CONTAINING GARMENTS WHEREIN COTTON-CONTAINING KNIT FABRIC IS CROSSLINKED TO IMPART DURABLE-PRESS CHARACTERISTICS TO THE FABRIC AND THEN FORMED INTO GARMENTS, THE IMPROVEMENT COMPRISING AGITATING THE FABRIC IN A SLACK CONDITION AFTER SAID FABRIC IS CROSSLINKED BUT BEFORE IT IS FORMED INT A GARMENT.
Claim 2
Dependent Claim
51 words
IN THE PROCESS FO PRODUCING FINISHED, DURABLE-PRESSED, KNITTED, COTTON-CONTAINING GARMENTS WHEREIN COTTON-CONTAINING KNIT FABRIC IS CROSSLINKED TO IMPART DURABLE-PRESS CHARACTERISTICS TO THE FABRIC AND THEN FORMED INTO GARMENTS, THE IMPROVEMENT COMPRISING AGITATING THE FABRIC IN A SLACK CONDITION AFTER SAID FABRIC IS CROSSLINKED BUT BEFORE IT IS FORMED INT A GARMENT.
Claim 3
Dependent Claim
13 words
The process of claim 1 wherein the fabric is agitated while being washed.
Claim 4
Dependent Claim
13 words
The process of claim 1 wherein the fabric is agitated in hot air.
Claim 5
Dependent Claim
15 words
The process of claim 1 wherein the fabric is agitated while being washed and dried.
Claim 6
Dependent Claim
55 words
In the process of producing durable-press knitted cotton-containing fabric, the improvement comprising subjecting the fabric after treatment with a finishing agent to drying during which the fabric is agitated in a slack condition, which provides the knitted fabric with substantially reduced shrinkage on subsequent laundering, and in which relatively little fabric length has been lost.
Claim 7
Dependent Claim
55 words
In the process of producing durable-press knitted cotton-containing fabric, the improvement comprising subjecting the fabric after treatment with a finishing agent to drying during which the fabric is agitated in a slack condition, which provides the knitted fabric with substantially reduced shrinkage on subsequent laundering, and in which relatively little fabric length has been lost.
Claim 8
Dependent Claim
61 words
In the process of producing durable-press knitted cotton-containing fabric, the improvement comprising subjecting the fabric after treatment with a finishing agent to washing and drying in which the fabric is agitated in a slack condition for a brief period, which provides the knitted fabric with substantially reduced shrinkage on subsequent laundering, and in which relatively little fabric length has been lost.
Claim 9
Dependent Claim
61 words
In the process of producing durable-press knitted cotton-containing fabric, the improvement comprising subjecting the fabric after treatment with a finishing agent to washing and drying in which the fabric is agitated in a slack condition for a brief period, which provides the knitted fabric with substantially reduced shrinkage on subsequent laundering, and in which relatively little fabric length has been lost.
Claim 10
Dependent Claim
66 words
In the process of producing durable-press knitted cotton-containing fabric, the improvement comprising subjecting the fabric after treatment with a finishing agent to washing and drying in which the fabric is held to size, followed by agitation in the slack condition with heat for a brief period, which provides the knitted fabric with substantially reduced shrinkage on subsequent laundering and causes relatively little loss of fabric length.
Claim 11
Dependent Claim
66 words
In the process of producing durable-press knitted cotton-containing fabric, the improvement comprising subjecting the fabric after treatment with a finishing agent to washing and drying in which the fabric is held to size, followed by agitation in the slack condition with heat for a brief period, which provides the knitted fabric with substantially reduced shrinkage on subsequent laundering and causes relatively little loss of fabric length.
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) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |