Patent US6281543B1 successfully refreshed from Google Patents.
Patent EP0274994A1 successfully refreshed from Google Patents.
EP0274994A1
Expired / Lapsed
EP
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Method and apparatus for crimping a fabric on a stretchable support
Assignee: Individual
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Filing: 1987-12-11
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Granted: —
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Expires: 2007-12-11
Abstract
Abstract A process is described for freely steaming, i.e. under conditions of no mechanical stresses, a fabric (6) on a stretchable support (5). A fabric web is freely and continuously fed at an area where the support is stretched and, while passing through the steaming region, it is subjected to a mechanical thrust due to the support recovery. The contemporary effect of both actions enhances the fabric shrinkage. An apparatus for carrying out this process comprises, as a support, a stretchy web of fabric or mat that is wound, like an endless loop, about at least two rollers of different speed (1,2), between which there is the steaming zone. The roller being upstream of this zone has a peripheral speed greater than the roller downstream thereof, whereby the support is initially stretched and elongated until it releases when leaving the steaming zone.
Inventors
- 👤 Pietro Alberto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 08:47
CPC Classifications
D; D06; D06C; D06C7/00; D06C7/02; D06C2700/00; D06C2700/13
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
77 words
A process for the steam conditioning of fabrics on a stretchable support, characterized by the steps of freely feeding, without tension, the fabric to be treated on a stretchable support being elongated under a pull action in the contact area, causing said support to be continuously forwarded along a fabric steaming region, while at the same time the elastic recovery of the support occurs, whereby the support shrink causes an increasing fabric crimping during the steaming treatment.
Claim 2
Dependent Claim
77 words
A process for the steam conditioning of fabrics on a stretchable support, characterized by the steps of freely feeding, without tension, the fabric to be treated on a stretchable support being elongated under a pull action in the contact area, causing said support to be continuously forwarded along a fabric steaming region, while at the same time the elastic recovery of the support occurs, whereby the support shrink causes an increasing fabric crimping during the steaming treatment.
Claim 3
Dependent Claim
54 words
A process according to claim 1, characterized by the fact that the stretchable support is also subject to a stretch action in a transverse direction with subsequent elastic recovery during the steaming of the fabric carried thereon, whereby the fabric is gradually accumulated not only in the longitudinal, but also in the width direction.
Claim 4
Independent Claim
92 words
An apparatus for continuously steam conditioning fabrics, characterized by the fact of comprising an endless web of a stretchable support material (5) which is perforated and wound about at least two rollers (1, 2) having different peripheral speeds, with a steam generator (4) for the emission of steam through the upper path of said support web (5), along a portion thereof which is downstream of said roller (1) having the greatest peripheral speed, in the proximity of which the fabric (6) to be treated is freely fed onto said support web (5).
Claim 5
Independent Claim
92 words
An apparatus for continuously steam conditioning fabrics, characterized by the fact of comprising an endless web of a stretchable support material (5) which is perforated and wound about at least two rollers (1, 2) having different peripheral speeds, with a steam generator (4) for the emission of steam through the upper path of said support web (5), along a portion thereof which is downstream of said roller (1) having the greatest peripheral speed, in the proximity of which the fabric (6) to be treated is freely fed onto said support web (5).
Claim 6
Dependent Claim
87 words
An apparatus according to claim 3, characterized by the fact that the fabric (6) to be treated is fed without stresses to said support (5) from a cylinder (3) having the same speed or a slightly greater speed that said roller (1) to prevent fabric (6) from tensions at an area (7) of contact with said support web (5) immediately following said roller (1) of greater speed which is positioned upstream of said steam generator (4) and other roller (2) in the forward direction of the fabric.
Claim 7
Dependent Claim
52 words
An apparatus according to claim 3 or 4, characterized by the fact that said roller (2) being positioned downstream of said steam generator (4) and having a lower peripheral speed is provided with circumferential grooves (8) to help the elastic recovery of the stretchable support web (5) also transversely, not only longitudinally.
References Cited (Backward Citations)
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