JPH02221449A - Felt - Google Patents

Abstract

PURPOSE:To obtain the title product which has the foundation and reused wool fiber layers entangled and has color pattern of excellent color sense by needle- punching a material in which reused wool layers are laminated on both surfaces of the foundation of spun-bonded nonwoven fabric followed by heat treatment. CONSTITUTION:Reused wool fiber layers 1A, 1B are laminated on both surfaces of the foundation 2 of a spun-bonded nonwoven fabric and the laminated product is needle-punched and heat-treated to give the subject felt product. The product is obtained, for example, by laminating reused wool layers 14a, 14b into webs on the conveyers 13a, 13b. conveying the webs with conveyers 14a, 14b, laminating the webs on both surface of the foundation 2, needle-punching the resulting material by means of a needle punch machine 20 and heat-treating it with a dry heater of a couple of heat rollers 22a, 22b. The foundation is preferably a polypropylene spun bonded nonwoven fabric in which the fiber are entangled by soft embossing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to felt used as a carpet material for electric carpets, etc.

[Conventional technology]

Felt, which is used as the carpet material for conventional electric carpets, is recycled and fiber waste is spread out using a spreading machine, and then transported to a conveyor by blown air, arranged in layers in a rotating casing, and then recycled and recycled on this conveyor. It is made by forming several layers of hair waste into a web and shaping it into a predetermined thickness and shape, which is then subjected to double punching using a needle machine to regenerate and entangle the fibers of the hair waste.

[Problem to be solved by the invention]

However, this felt was made only from recycled wool waste, and its color was not desirable.

The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to provide a felt with an excellent sense of color.

[Means to solve the problem]

In order to achieve the above object, the present invention is made by disposing recycled recycled fiber layers on both sides of a base fabric made of spunbond nonwoven fabric, applying needle bunching processing to this material, and then subjecting it to heat treatment. It is.

[Effect]

If the recycled recycled fiber layer and the base fabric are made of different colors, they will become intertwined with each other by punching and a colored pattern will appear. If the base fabric and the recycled recycled fiber layers on both sides are all different colors, a color pattern of three colors will appear.

〔Example〕

Embodiments of the present invention shown in the drawings will be described below.

FIG. 1 is a longitudinal sectional view of the felt of the present invention, FIG. 2 is a perspective view thereof, and FIG. 3 is a schematic diagram showing the manufacturing process.

In Fig. 1.2, IA and 1B are recycled recycled fiber layers, and a base fabric 2 made of spunbond nonwoven fabric is interposed between these layers. These are needle-punched, so the respective fibers are entangled, and the fibers of the base fabric 2 and the other recycled recycled fiber layer IB (IA) appear on the recycled recycled fiber JilA (IB) side, and By changing the colors of the materials, two or three color patterns will appear.

The felt having the above structure is manufactured by the steps shown in FIG. Hopper 3a arranged at different front and rear positions
The recycled hair layer material 1a (lb) in (3b) is cut out from this hopper 3a (3b) onto the first conveyor 1la (llb) and supplied to the rotating cylinder 12a (12b). The rotational centrifugal force of this rotary cylinder 12a (12b) causes the foreign matter in the recycled hair waste material la to fall and be removed, and only the recycled hair waste IC (1d) is transferred to the second conveyor 13a (13b).
The materials are then transferred to a container where they are laminated in a web state. While being transported by the second conveyor 13a (13b), the regenerated hair waste 1b is layered by the rotating casing 15 provided above. Then, the third conveyor 14a (14b) transports these and stacks them one above the other.

A base fabric 2 made of a spunbond nonwoven fabric is unwound from its roll and fed between the recycled wool scraps 1c and ld at a position where the recycled wool scraps 1c and ld overlap, where they are laminated into three layers. This is sent to the needle punching machine 20 by the fourth conveyor 15. On the entry side of the double-dollar punching machine 20, there are press rollers 19a, 19.
b is provided, and after pressing the three-layer laminate, needle punching is performed, and it is sent through a web unwinding process to a finishing needle machine 21, where it is subjected to finishing punching.

Then, the felt of the present invention consisting of the recycled recycled fiber layers IA, ll'l and the base fabric 2 is subjected to dry heat treatment at 200°C for 3 minutes or more using a dry heat device 22 consisting of heat rollers 22a and 22b. is wound into the winder 23.

Incidentally, spunbond nonwoven fabrics made of polypropylene and having an embossing rate of 11% to 18% are commercially available. In the present invention, the embossing rate is 11% to 1
If it is 8%, the elongation will be low and it will break, so the base fabric 2 is made of polypropylene spunbond with soft embossing between the fibers and temporary adhesion. This not only prevents tears, but also allows the base fabric 2 to act as a cushioning material during the punching process, allowing the recycled recycled fiber layer IA to
No expansion of IB web unevenness occurs.

The felt of the present invention manufactured by the above-described process has fibers of the base fabric 2 on the back wool fiber layer 1^, IB side, and back wool fiber layer LA, (IR) by needle punching process.
) appears on the other back-hair fiber layer IB (IA) side, so by changing these colors to two or three colors, the back-hair fiber layer IA
, The surface of 1B has a color pattern in which one or two other colors appear dotted on the ground color.

In addition, in the felt of the present invention, since the base fabric 2 is thermally fused to the recycled recycled fiber layers l^, IB by heat treatment, the holding power of the recycled recycled fibers JILA, IB is strengthened. As a result, it is possible to realize a felt that has greater peeling resistance than conventional felt made only of recycled fibers. In other words, it is possible to realize a thin product with a weight per area (basis weight) of 400 to 500 g7ml112, that is, 5ffI111 or less.

[Effects of the Invention] As described above, the present invention has the advantage that it is possible to realize a felt with similar color appearance, and also to realize a felt with high peeling resistance and a light or thin basis weight.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view of the felt of the present invention, Fig. 2 is a perspective view thereof, and Fig. 3 is a schematic diagram showing the manufacturing process.

Claims (1)

[Claims] 1. A material comprising a base fabric made of spunbond nonwoven fabric and recycled recycled fiber layers laminated on both sides of this base fabric.
A felt characterized by being made by needle punching and then heat treatment.