GB2122109A

GB2122109A - Fusible interlining

Info

Publication number: GB2122109A
Application number: GB08311867A
Authority: GB
Inventors: Holger Buchwald; Jurgen Knoke; Hans Claus Assent; Erich Fahrbach
Original assignee: Carl Freudenberg KG
Current assignee: Carl Freudenberg KG
Priority date: 1982-05-03
Filing date: 1983-04-29
Publication date: 1984-01-11
Also published as: ES268329Y; GB8311867D0; ES268329U; DE8212684U1; GB2122109B

Abstract

A fusible interlining comprises a soft foam layer (1) coated on one face with an adhesive composition (2) distributed in a pattern, whereas its rear face carries a covering layer consisting essentially of short fibres (3) projecting substantially at right angles from the surface. <IMAGE>

Description

SPECIFICATION Fusible interlining The present invention relates to a fusible interlining comprising a soft foam layer.

Such an interlining is described in German Utility Model 7,005,147. It comprises a foam layer which is fixed to the fabric base by means of adhesives or by partial melting of the foam. Both alternatives demand considerable expense in respect of the equipment required, and an undesirable stiffening and reduction of breathability must frequently be tolerated.

The same document also describes-an embodiment in which a foam layer is laminated on both sides with continuous textile sheet-like structures. Such an interlining is not fusible and, because of its sandwich structure, has only very limited softness and resilience.

The present invention seeks to provide a fusible interlining comprising a soft foam layer, which, whilst having good abrasion resistance of the inner face, is distinguished by good softness and breathability, and which can be incorporated by using means customary in the trade, that is to say by using ironing presses or irons.

According to the invention there is provided a fusible interlining comprising a soft foam layer which is coated on its front face with an adhesive composition distributed in a pattern whilst its rear face carries a covering layer consisting essentially of short fibres projecting substantially at right angles from the surface.

The interlining according to the invention has a flexural elasticity and resilience, before and after processing, similar to the corresponding properties of the soft foam layer used. The latter preferably consists of an open-cell polyurethane foam having a density of 25 to 50 kg/m3, and preferably has a thickness of 0.5 to 4.5 mm.

It is also possible to use closed-cell foams of a corresponding weight category and thickness, provided that sufficient breathability is ensured by creating a sufficient number of holes passing completely through the foam layer. Corresponding holes can be provided mechanicaily, for example by using an automatic punching device.

To improve the resilience of the soft foam layer in a direction parallel to the surface, slits which sever the soft foam layer completely can be provided at right angles to this direction, these slits being parallel to one another and overlapping one another.

On the front face, the soft foam layer is coated with an adhesive composition distributed in a pattern. This composition consists of a thermoplastic material which has a lower softening point than the actual soft foam layer.

Since the latter exhibits relatively high heat insulation it is advisable that the amount of heat required to soften the adhesive composition should, during fusing, be supplied through the outer fabric.

The covering layer consists preferably of short fibres applied in an electrostatic field and bonded to the soft foam layer. These fibres project substantially at right angles from the surface of the soft foam layer and impart to the latter a textile-like appearance and textile-like handle, without significant impairment of the air permeability and moisture permeability. The abrasion resistance of the soft foam layer is substantially improved, as a result of which an inner lining is in many cases unnecessary.

The covering layer can possess holes which continuously merge into one another or are arranged at a distance from one another; this ieads to a further improvement in permeabilit)i.

Moreover it is possible in this way to imitate a fabric-like appearance, which is a great advantage from.an aesthetic point of view.

The accompanying drawing shows one embodiment of interlining according to the invention, depicted in cross-section.

Referring to the drawing, a soft foam layer 1 consists of an open-cell polyurethane foam layer having a density of 35 kg/m3 and a thickness of 1.5 mm.

The underside of the layer is coated with an adhesive composition 2 distributed in a geometrical pattern. This consists of individual amounts of adhesive composition, projecting from the underside, these amounts having a circular boundary, a constant distance between centres of 1.8 mm, and a diameter of 1 mm each.

Viscose fibres 3, projecting substantially at right angles, are bonded to the upper face of the soft foam layer, and form a dense pile which completely masks the actual soft foam layer. The average length of the fibres is 1.0 mm and the denier is 3.3 dtex.

The interlining exhibits good breathability and moisture permeability. The handle has a textile like softness and suppleness, and the textile appearance of the covering layer makes unnecessary the use of additional linings after the interlining has been fused to an outer fabric.

1. A fusible interlining comprising a soft foam layer which is coated on its front face with an adhesive composition distributed in a pattern, whilst its rear face carries a covering layer consisting essentially of short fibres projecting substantially at right angles from the surface.

2. A fusible interlining according to claim 1, in which the covering layer possesses holes which continuously merge into one another or are spaced apart from one another.

3. A fusible interlining according to claim 1 or 2, in which the soft foam layer is an open-cell polyurethane foam.

4. A fusible interlining according to claim 1 or 2, in which the soft foam layer is a closed-cell foam to which breathability has been imparted by means of a plurality of holes passing completely through the foam layer.

5. A fusible interlining according to any of claims 1 to 4, in which a plurality of slits are provided in the soft foam layer severing it

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Fusible interlining The present invention relates to a fusible interlining comprising a soft foam layer. Such an interlining is described in German Utility Model 7,005,147. It comprises a foam layer which is fixed to the fabric base by means of adhesives or by partial melting of the foam. Both alternatives demand considerable expense in respect of the equipment required, and an undesirable stiffening and reduction of breathability must frequently be tolerated. The same document also describes-an embodiment in which a foam layer is laminated on both sides with continuous textile sheet-like structures. Such an interlining is not fusible and, because of its sandwich structure, has only very limited softness and resilience. The present invention seeks to provide a fusible interlining comprising a soft foam layer, which, whilst having good abrasion resistance of the inner face, is distinguished by good softness and breathability, and which can be incorporated by using means customary in the trade, that is to say by using ironing presses or irons. According to the invention there is provided a fusible interlining comprising a soft foam layer which is coated on its front face with an adhesive composition distributed in a pattern whilst its rear face carries a covering layer consisting essentially of short fibres projecting substantially at right angles from the surface. The interlining according to the invention has a flexural elasticity and resilience, before and after processing, similar to the corresponding properties of the soft foam layer used. The latter preferably consists of an open-cell polyurethane foam having a density of 25 to 50 kg/m3, and preferably has a thickness of 0.5 to 4.5 mm. It is also possible to use closed-cell foams of a corresponding weight category and thickness, provided that sufficient breathability is ensured by creating a sufficient number of holes passing completely through the foam layer. Corresponding holes can be provided mechanicaily, for example by using an automatic punching device. To improve the resilience of the soft foam layer in a direction parallel to the surface, slits which sever the soft foam layer completely can be provided at right angles to this direction, these slits being parallel to one another and overlapping one another. On the front face, the soft foam layer is coated with an adhesive composition distributed in a pattern. This composition consists of a thermoplastic material which has a lower softening point than the actual soft foam layer. Since the latter exhibits relatively high heat insulation it is advisable that the amount of heat required to soften the adhesive composition should, during fusing, be supplied through the outer fabric. The covering layer consists preferably of short fibres applied in an electrostatic field and bonded to the soft foam layer. These fibres project substantially at right angles from the surface of the soft foam layer and impart to the latter a textile-like appearance and textile-like handle, without significant impairment of the air permeability and moisture permeability. The abrasion resistance of the soft foam layer is substantially improved, as a result of which an inner lining is in many cases unnecessary. The covering layer can possess holes which continuously merge into one another or are arranged at a distance from one another; this ieads to a further improvement in permeabilit)i. Moreover it is possible in this way to imitate a fabric-like appearance, which is a great advantage from.an aesthetic point of view. The accompanying drawing shows one embodiment of interlining according to the invention, depicted in cross-section. Referring to the drawing, a soft foam layer 1 consists of an open-cell polyurethane foam layer having a density of 35 kg/m3 and a thickness of 1.5 mm. The underside of the layer is coated with an adhesive composition 2 distributed in a geometrical pattern. This consists of individual amounts of adhesive composition, projecting from the underside, these amounts having a circular boundary, a constant distance between centres of 1.8 mm, and a diameter of 1 mm each. Viscose fibres 3, projecting substantially at right angles, are bonded to the upper face of the soft foam layer, and form a dense pile which completely masks the actual soft foam layer. The average length of the fibres is 1.0 mm and the denier is 3.3 dtex. The interlining exhibits good breathability and moisture permeability. The handle has a textile like softness and suppleness, and the textile appearance of the covering layer makes unnecessary the use of additional linings after the interlining has been fused to an outer fabric. CLAIMS

5. A fusible interlining according to any of claims 1 to 4, in which a plurality of slits are provided in the soft foam layer severing it completely.

6. A fusible interlining substantially as hereinbefore described or illustrated in the accompanying drawing.

7. A garment incorporating a fusible interlining according to any of claims 1 to 6.