JPS6163783A - Production of automobile carpet - Google Patents

Abstract

PURPOSE:End wastes of automobile carpets are crushed, when needed, crushed virging resin are combined and they are scattered on the back face of woven carpet, fused by heating and solidified to produce automobile carpets utilizing end wastes. CONSTITUTION:Wastes of automobile carpets such as periphery cut wastes or punched off wastes for console box are cut into pieces of 1cm size and made into particles by means of a Henschel mixer. The particles are extruded through an extruder into a bar, which is cut appropriately, cooled and crushed with a crusher into 100 mesh particles. Then, when needed, a crushed virgin resin is blended and the mixture is scattered on the back face of a needle- punched carpet, melted in an oven, solidified and pressed with a small pressure to give an automobile carpet. Thus, end wastes of carpets can be utilized to give automobile carpets at low costs.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an automobile carpet, and is characterized in that car vent scraps are reused.

Automobile carpets are used by forming a resin layer such as polyethylene or ethylene/vinyl acetate resin on the back side, molding the carpet, cutting the outer periphery to a predetermined length, and assembling it with felt or the like. In the process of making parts, a large amount of scraps such as cut outer peripheries and hollowed out scraps of console boxes, etc. are generated, and it is difficult to dispose of them. The present invention has been studied and filed with the aim of effectively utilizing such carpet scraps that have conventionally been disposed of.

That is, the present invention is a method for producing an automobile carpet, in which automobile carpet offcuts are melted, cooled, crushed, blended with crushed virgin resin if necessary, and sprinkled on the back surface of the carpet greige, and heat treated to melt and fix the resin.

Next, the present invention will be explained in detail. As the carpet scraps in the present invention, scraps from automobile car vents having polyethylene resin, ethylene/vinyl acetate resin, etc. on the back side are used. X-MxX result
It's hard to shoot X-beams, and it doesn't matter whether you're dealing with it or not.

Is it only the resin that melts the offcuts in the present invention? These include those that melt f4 and those that melt both resin and fibers.

To manufacture it, first cut the scraps into pieces of about 1/2 cm square, then put it in a Henschel mixer and rotate it at high speed to make it into granules. At this time, crushed virgin resin is added if necessary to facilitate granulation. The obtained granules are extruded into a plate or rod shape through an extruder, cut to fit into a crusher, cooled, and then crushed by a crusher. If necessary, these crushed pieces are blended with crushed pieces of virgin resin of approximately the same shape, sprinkled in a predetermined amount on the back of the carpet greige machine, heat treated to melt and solidify the resin, lightly pressed, and cooled to produce an automobile carpet. . If necessary, virgin resin is blended here depending on the type of carpet offcuts.The ratio of resin to fiber is not constant, and if the ratio of fiber increases, the physical properties deteriorate, so in that case, blend virgin resin and use it. .

Reusing carpet scraps not only eliminates the cost of disposing of waste, which was previously required, but also allows for the reuse of carpet backing resin, which makes it possible to provide automobile carpets at low cost, and also has the effect of conserving resources. It's a dog.

As another manufacturing method, carpet scraps can be kneaded in a Banbury mixer, shaped into a sheet with calendar rolls, and then shredded into a crusher to produce an automobile carpet by the above-mentioned method.

Example/Polypropylene fiber ¥00g/m S BR latex 100g/m Ends of an automobile needle carpet made of polyethylene resin 60p were cut into pieces of about 1/2 cm square and put into a Henschel mixer to form granules. This product was cut into rod shapes by melt extrusion using an extruder, and after cooling, was crushed into 100 meshes using a crusher. This material was sprayed at 600 g/rn on the back side of a needle carpet gray machine, the resin was melted in a heat furnace, and the product was pressed lightly with a roll at the exit of the furnace. The polypropylene fibers were almost completely melted in the extruder.

Example = Nylon pile θO g/m Polyester base fabric/
/θg/m polyethylene backing resin 00g/+n
Automobile carpet scraps consisting of 2 are roughly cut and then put into a Banbury mixer/! After kneading at 0°C for about 1 minute, it was kneaded in a calender to a thickness of about . A 2 mm sheet was cut into a shape to fit into a crusher, and then crushed in a crusher. 100 parts of this stuff contains crushed polyethylene virgin resin!
Blend the θ section and apply it to the back side of the main tufted carpet.
00 g/rrf2 was sprayed, the resin was melted in a heat furnace, and the product was obtained by roll pressing at the furnace outlet. The fibers remain unmelted.

The physical properties of the obtained carpet are shown in the table.

Each number in the table is! The average value of point measurements that has direction is meridian. It showed a weak value in the latitudinal direction.

The method for determining the physical properties of glue i11 is shown below.

Roshi's 7 balls: Below 0°C! 3! A steel ball of g is dropped onto the surface side of the carpet, and the falling height at which cracks occur in the resin on the back side is determined.

Tensile strength and elongation: in the weft and weft directions. ffcm width 2 Tear strength: For a sample with width jcm and length θCm, in the center part of one direction /
Make a cut of cm, and make a sample length of 10 cm on that side and /j on the other side.
Chuck it so that it is pulled at a pulling speed of 20cm/
Tear strength was measured at min.

Thread removal strength: The strength was determined when two piles were grasped with a gripper and pulled out at 20 cm/min using an Instron.

Claims (1)

[Claims] (1) A method for producing an automobile carpet by melting automobile carpet offcuts, cooling and crushing them, blending the crushed virgin resin if necessary, scattering the mixture on the back side of the carpet greige, heat-treating it, and melting and fixing it.