GB2187481A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Process for shrinking thermically shrinkable fibres
Assignee: SIPA ITALIANA PRODOTTI Soc
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Filing: 1986-03-07
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Granted: —
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Expires: 2006-03-07
Abstract
Abstract A process for the continuous shrinking of a top of thermically shrinkable fibres in which thermal (heat) treatment by means of saturated or humid steam is carried out simultaneously with a crimping phase. The process is carried out at the outlet of a stretch-breaking machine.
Inventors
- 👤 Mario Franzoso
- 👤 Roberto De Lucia
- 👤 Franco Marton
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-23 05:16
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02G; D02G1/00; D02G1/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
44 words
A process for the continuous thermal shrinking of a top of thermically shrinkable fibres, at the outlet of a stretch-breaking machine, by means of a heat treatment with humid or saturated steam, wherein the heat treatment is carried out contemporaneously with a crimping phase.
Claim 2
Dependent Claim
44 words
A process for the continuous thermal shrinking of a top of thermically shrinkable fibres, at the outlet of a stretch-breaking machine, by means of a heat treatment with humid or saturated steam, wherein the heat treatment is carried out contemporaneously with a crimping phase.
Claim 3
Dependent Claim
31 words
A process as claimed in claim 1, wherein the steam is fed into a crimping chamber downstream of a crimping bar and perpendicular to the direction of feed of the top.
Claim 4
Dependent Claim
22 words
A process as claimed in claim 2, wherein the steam is fed in through holes in the walls of the crimping chamber,
Claim 5
Dependent Claim
30 words
A process as claimed in any of claims 1 to 3, wherein the temperature of the steam is greater than 100"C, and the time of treatment is below 30 seconds.
Claim 6
Dependent Claim
18 words
A process as claimed in claim 4, wherein the temperature of the steam is from 105 to 120"C.
Claim 7
Dependent Claim
18 words
A process as claimed in any of claims 1 to 5, wherein the top consists of acrylic fibres.
Claim 8
Dependent Claim
22 words
A process according to claim 1 for the continuous thermal shrinking of a top of thermically shrinkable fibres, substantially as herein described.
References Cited (Backward Citations)
GB837573A
Cited
GB1259031A
Cited
GB1300379A
Cited
GB1365975A
Cited
GB1381458A
Cited
GB1534587A
Cited
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