Patent US4167594A successfully refreshed from Google Patents.
US4167594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined laundry finishing treatment agent package and method
Assignee: Henkel AG and Co KGaA
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Filing: 1977-12-27
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Granted: 1979-09-11
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Expires: 1997-12-27
Abstract
Abstract A laundry finishing treatment article for use in a mechanical laundry drier to treat fabrics with a substance of the laundry finishing type and a laundry odorant, the article comprising a hollow bag of two-layer composite sheeting having a pillowlike form closed on all sides, the external layer of said two-layer composite sheeting being an open-celled absorbent layer containing an amount effective to treat said fabrics of the substance, which substance is substantially solid at room temperature and softened or liquefied at elevated drier temperatures to enable a transfer of the substance to the laundry during the drying thereof, and the internal layer of the two-layer composite sheeting being a plastic film substantially gas-impermeable at room temperature and gas-permeable to the odorant at elevated drier temperatures, the film enclosing an effective amount of the odorant; as well as the process for after-treating laundry in a drier in which the above laundry finishing treatment article is introduced into a drier together with moist laundry and allowed to act on the laundry during the drying process.
Inventors
- 👤 Karl Schwadtke
- 👤 Werner Kunzel
- 👤 Rudolf Weber
- 👤 Rolf Puchta
- 👤 Alexander Cioc
- 👤 Michael Kik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:31
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/04; C11D17/041; C11D17/047; D; D06; D06F; D06F58/00; D06F58/20; D06F58/203; D06F58/30; D06M; D06M23/00
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
134 words
A laundry finishing treatment article for use in a mechanical laundry drier to treat fabrics with a substance of the laundry finishing type and a laundry odorant, said article comprising a hollow bag of two-layer composite sheeting having a pillowlike form closed on all sides, the external layer of said two-layer composite sheeting being an open-celled, absorbent layer containing an amount effective to treat said fabrics of said substance, which substance is substantially solid at room temperature and softened or liquefied at elevated drier temperatures to enable transfer of said substance to the laundry during the drying thereof, and the internal layer of the two-layer composite sheeting being a plastic film substantially gas-impermeable at room temperature and gas-permeable to said odorant at elevated drier temperatures, said film enclosing an effective amount of said odorant.
Claim 2
Dependent Claim
134 words
A laundry finishing treatment article for use in a mechanical laundry drier to treat fabrics with a substance of the laundry finishing type and a laundry odorant, said article comprising a hollow bag of two-layer composite sheeting having a pillowlike form closed on all sides, the external layer of said two-layer composite sheeting being an open-celled, absorbent layer containing an amount effective to treat said fabrics of said substance, which substance is substantially solid at room temperature and softened or liquefied at elevated drier temperatures to enable transfer of said substance to the laundry during the drying thereof, and the internal layer of the two-layer composite sheeting being a plastic film substantially gas-impermeable at room temperature and gas-permeable to said odorant at elevated drier temperatures, said film enclosing an effective amount of said odorant.
Claim 3
Dependent Claim
29 words
The laundry finishing treatment article of claim 1 wherein said article is rectangular, having side lengths of from 5 to 30 cm and being sealed on all four sides.
Claim 4
Dependent Claim
22 words
The laundry finishing treatment article of claim 2 wherein said article is substantially square and sealed on all four sides by glue.
Claim 5
Dependent Claim
22 words
The laundry finishing treatment article of claim 2 wherein said article is substantially square and sealed on all four sides by welding.
Claim 6
Dependent Claim
42 words
The laundry finishing treatment article of claim 1 wherein said substance of the laundry finishing type is selected from the group consisting of textile fabric softerners, textile antistatic agents, antimicrobial agents, soil release agents, ironing aids, flame retardants and moth proofing agents.
Claim 7
Dependent Claim
20 words
The laundry finishing treatment article of claim 1 wherein said absorbent layer is a discrete layer of a foamed plastic.
Claim 8
Dependent Claim
25 words
The laundry finishing treatment article of claim 1 wherein said plastic film is a discrete layer having a thickness of from 0.03 to 0.15 mm.
Claim 9
Dependent Claim
25 words
The laundry finishing treatment article of claim 1 wherein said plastic film is a discrete layer having a thickness of from 0.05 to 0.08 mm.
Claim 10
Dependent Claim
16 words
The laundry finishing treatment article of claim 8 wherein said plastic film is a polyethylene film.
Claim 11
Dependent Claim
38 words
The laundry finishing treatment article of claim 1 wherein said two-layer composite sheeting is a single sheet having a foamed open-celled plastic external layer and an integral internal layer of a gas-impermeable at room temperature plastic non-cellular skin.
Claim 12
Dependent Claim
23 words
The laundry finishing treatment article of claim 6 wherein said foamed plastic is foamed polyurethane having a thickness of 0.5 to 3 mm.
Claim 13
Dependent Claim
23 words
The laundry finishing treatment article of claim 6 wherein said foamed plastic is foamed polyurethane having a thickness of 1.0 to 2.5 mm.
Claim 14
Dependent Claim
23 words
The laundry finishing treatment article of claim 10 wherein said foamed plastic is foamed polyurethane having a thickness of 0.5 to 3 mm.
Claim 15
Dependent Claim
23 words
The laundry finishing treatment article of claim 10 wherein said foamed plastic is foamed polyurethane having a thickness of 1.0 to 2.5 mm.
Claim 16
Dependent Claim
26 words
The laundry finishing treatment article of claim 1 wherein said absorbent layer contains from 0.5 to 10 gm of said substance per dm 2 of surface.
Claim 17
Dependent Claim
26 words
The laundry finishing treatment article of claim 1 wherein said absorbent layer contains from 1 to 5 gm of said substance per dm 2 of surface.
Claim 18
Dependent Claim
23 words
The laundry finishing treatment article of claim 1 wherein said absorbent layer has a density of from 0.005 to 0.05 gm/cm 3 .
Claim 19
Dependent Claim
23 words
The laundry finishing treatment article of claim 1 wherein said absorbent layer has a density of from 0.01 to 0.04 gm/cm 3 .
Claim 20
Dependent Claim
39 words
The laundry finishing treatment article of claim 6 wherein said foamed plastic is selected from the group consisting of cellulose acetate, viscose cellulose, polyvinyl chloride, polyolefin, polyamide, copolymers of acrylonitrile, butadiene and styrene, natural rubber, synthetic rubber and polyurethane.
Claim 21
Dependent Claim
78 words
The laundry finishing treatment article of claim 1 wherein said substance is selected from the group consisting of: (1) a quaternary ammonium compound having two C 16 -C 20 alkyl groups and two methyl groups in the molecule and a chloride, bromide or methyl sulfate anion, alone, and (2) a mixture of said quaternary ammonium compound with the condensation product of one mol of hardened tallow and one mol of hydroxyethyl-ethylenediamine in proportions of from 4:1 to 1:4.
Claim 22
Dependent Claim
17 words
The laundry finishing treatment article of claim 20 wherein said quaternary ammonium compound is ditallow alkyl-dimethylammonium chloride.
Claim 23
Dependent Claim
38 words
A process for after-treating laundry in a drier in which the laundry finishing treatment article of claim 1 is introduced into a drier together with moist laundry and left to act on the laundry during the drying process.
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) | 1982-09-10 | 1983-03-12 | 1983-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-10 | 1987-03-12 | 1987-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-10 | 1991-03-12 | 1991-09-11 | $7700.00 | Window Closed / Lapsed |