CS224914B1 - The filling textile flat configuration with rubberpile caracteristic - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a padding textile fabric having the character of a rubber-like fabric, manufactured on the basis of secondary raw materials, in particular string-like fibrous waste.

Rubber hair is a special type of upholstery filling material with characteristic bulk and elastic properties, which is used in the production of upholstery, furniture, mattresses, sporting goods and other similar applications ·

At present, the basic fibrous raw material of gums is plant fibers, mainly coconut. As an admixture, various animal fibers, cut films, and the like are used. The plant fibers constitute about 80% by weight in the cloth mixture. The fiber mixture, collectively referred to as the coconut imprint, is assigned to the shape of a twisted strand in which it is thermally fixed in order to stabilize the shaping effect - the macrocircularity.

The obtained fiber shape is a co-carrier of the desired elastic properties of the rubber hair, mainly of high elasticity and resistance to permanent deformation by static and dynamic driving.

The fibers are loosened in a further process, and the fibrous web formed by spunbonding is pre-conditioned by minimal needling and chemically bonded by two-sided latex spraying, preferably natural or synthetic, respectively. a mixture thereof. The last operation is heat treatment and pressing to the desired depth and density.

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The described method of producing gum-hair is economically demanding because of the basic fiber material - coconut fibers that are the subject of import. which makes up 40% of the coconut hair.

The high content of dust particles causes considerable dustiness of the working environment at the rubber producers.

The above-mentioned drawbacks are limited by the new padding textile fabric having the character of a rubber-like fabric according to the invention, which consists of 25 to 100% by weight of fibrous polyester, polyamide and / or polypropylene waste with an average individual fiber length of 70 to 200 mm. The filamentous string waste is preferably formed by spinning, optionally in a mixture with coconut hair and heat-fixing at 80 to 150 ° C for 3 to 45 minutes.

The advantages of the novel padding textile fabric having the character of a rubber liner according to the invention over the rubber net are manifested in the processing of the basic fiber raw material. The string-like fibrous waste does not contain dust particles, while the optimum cut length adjustment leads to negligible formation of short-fiber particles. The proportion of waste in the processing of fibrous raw material is reduced by 20 - 60% compared to the production of gum-flesh according to the proportion of string waste in the fiber mixture, the total losses in processing pure string waste are at most 15% during the whole production process. and there will be an overall increase in production volume for the same input volume of the raw material being processed.

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The use of string-like fibrous waste in the production of the new padding textile material according to the invention represents the recovery of secondary raw materials which are waste in the manufacture of synthetic fibers and a large proportion of which do not return to the production cycle.

The following examples illustrate the invention:

Example 1

Polyester string waste is treated to an average cutting length of about 200 mm, it is added to a spinning strand of about 40 mm diameter on a spinning device, and is heat treated at 120 ° C for 5-10 minutes in the strand.

After cooling, the strand is mechanically loosened by a specially adapted opening device. The loose stringed waste is processed into a fiber web having a basis weight of about 500 gm, which is chemically bonded by a two-sided coating with an equivalent mixture of natural styrene-butadiene latex. The proportion of non-volatile vulcanizate component in the total weight of the finished product is 35%. · The pre-dried impregnated sheet is heat treated at 120 - 150 ° C for 10 - 30 min. while simultaneously pressing the two layers of the web to a depth of 25 mm.

Example 2

The string-like fibrous waste consisting of a mixture of polyester and polypropylene string-like waste in a ratio of 70/30 parts by weight is adjusted to an average cut length of 100-200 mm before blending, it is mixed with the pulped spun coconut hair.

The proportion of string-like fibrous waste is 50% by weight of the fiber mixture. The further procedure is identical to that of Example 1.

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The string-like fibrous polyamide waste aa is cut by chopping to an average cut length of 100 to 200 mm and mixed with β-pulped coconut hair before forming the web.

The physico-mechanical, processing and performance properties of the novel padding textile fabric of the present invention are at the level of conventional rubber hair.

Kind of material Cyclic stress Static stress CSN 80 4406 strain % Change ί hardness 1 % compressible telnosl mm strain % rubberized fibers 5.0 35.0 5,387 8.6 New textile supplementary material by example. 1 4.4 36.8 3.07 6.26 by example. 2 4.6 34.0 3.10 7.08 by example. 3 3.8 35.7 4.8 8.02

Claims (1)

BACKGROUND OF THE INVENTION 2241 914 Fibrous webs chemically bonded to the natural and / or bosynthetic latex by the nature of the rubber to be padded are characterized in that it comprises 25 to 100% by weight of string-like fibrous polyester, polyamide and / or polypropylene waste of medium length fibers 70 to 200 mm and a maximum of 75% of cocoa hair, wherein the fibrous string waste is advantageously formed by spinning into a strand, optionally in admixture with co-cosmic hair and thermal fixation at 80 to 150 ° C for 3 to 45 minutes.