CS240457B1 - A method for producing a rubber-woven fabric blanket fabric - Google Patents

Abstract

A method of producing a filling textile sheet of the nature of rubber pile, one of the fleece-forming components of which is a polyester undirected fibrous material of the nature of strings, with a certain specific gravity value, the required specific properties of which are achieved by heat treatment and subsequent loosening before mixing and forming the fleece.

Description

The present invention relates to a process for the manufacture of a textile padding fabric, wherein the conditions for treating the runic components and their processing are selected such that certain undesirable technological problems are eliminated and product quality is improved.

It is known that padding materials are produced on the basis of vegetable fibers, mainly coconut and sisal, which are added to a strand in which they are thermally fixed and mechanically loosened prior to processing into the rune.

Československé AO č. 224 914 discloses a padding textile sheet having the character of a rubber-hair, consisting of synthetic string-like fibrous waste based on polyester, polyamide and polypropylene with a proportion of 25 to 100% by weight of fibrous web which is added directly to the plant hair a strand in which it is fixed in order to obtain a shaping effect.

The disadvantage of the present state is the economic demands on the fibrous plant material, the necessity of its spinning on special spinning machines, and the technological problems with the extraction and winding of the long fiber fraction on the rotating parts of the web-forming device when adding untreated string fiber waste. In addition, the addition of untreated synthetic stringed fibrous waste reduces the bulk properties of the web and causes technological problems in the formation of the web at locations where the material locally occurs.

These and other disadvantages are solved by the present invention according to which the method of producing a spunbonded textile fabric or other fibrous materials and / or non-filamentary non-woven polyester fiber material comprising operations such as heat treatment, blending, web formation, bonding, the molding and vulcanization is carried out in such a way that the polyester undiluted material is heat-treated until a specific gravity in the range of 1340 to 1380 kg / m @ ³ , preferably 1,345 to 1,360 kg, is achieved. m- ³ and the thus treated polyester material is cooled and, after loosening, processed separately or mixed with a particularly loosened spinning hair and the formed formation is treated in a manner known per se.

An advantage of the present invention is the achievement of the specified string fiber characteristics of the polyester fiber material, which ensure the elimination of technological problems, especially the winding of the long fiber fraction on the rotating parts of the web-forming device. In addition to these advantages, the method of production according to the invention has economic advantages over the technologies used hitherto because of the unpretentious technological operation of the heat treatment of stringed material.

The term spinning hair is understood to mean a mixture of vegetable fibers, in particular coir with other ingredients such as animal hair, cut kinematic films and the like, spun into a strand in which they are thermally fixed in order to stabilize the forming effect.

String fiber material means non-oriented or oriented synthetic fiber material having a thickness of 100 to 500 x ^{10 6} m.

The method of the invention is described, but not limited, by the following examples.

EXAMPLE

Polyester fiber material of the 0 'strand character, specific weight 1333 kg. m ~ ^3, with a cutting length of approx. 70 mm, is subjected to a heat treatment in a steamer of approx. The heat-treated material remains in the steamer for 20 minutes after reaching this temperature. Its average density will increase to. 1,352 kg. m ~ ³ . The treated material is allowed to cool to ambient temperature and subsequently released on a tear wolf. The loose material is mixed with a particularly loose spinning hair in a 1: 1 ratio, and the web is formed into a bulk web of approximately 600 g. and ^'i, which is then chemically linked by spraying a mixture of 266 kg of natural latex with a non-volatile component of 60% by weight. with 200 kg styrene-butadiene latex with a non-volatile component content of 53 wt. with a bound styrene content of 27%, with the addition of 49 kg of vulcanizing additives having the following composition: 3.75 wt. parts by weight of sulfur, 5.07 wt. parts by weight of zinc oxide, 2.76 wt. parts of 2,6-di-butyl-4-methylphenol. 0.38 wt. parts by weight of 2-mercaptobenzothiazole, 1.4 wt. 1 part by weight of zinc diethyldithiocarbamidate; % by weight of the sodium salt of dimethyldithiocarbamic acid with a non-volatile component content of 58% by weight; and 12 kg of a 10% solution of potassium oleate are subsequently pre-dried at 60 degrees Celsius, cut to the desired size and pressed at 120 ° C for 12 minutes while vulcanizing.

The finished product is a textile fabric of the rubber-like character usable in upholstery production, as insulating, packaging material and the like.

Example 2

The procedure as in Example 1, except that the heat treated loose polyester filamentary fiber material is processed alone without blending with the loose spinning hair.

Example 3

Procedure as in Example 1, except that 50% of the fibrous web-forming components are a 3: 1 mixture of loose spun and polypropylene string material.

Example 4

Procedure as in Example 1, except that 60% of the fibrous ^1- forming components are a 4: 1 mixture of loose spinning hair and polyamide string material.

Example 5

Procedure as in Example 1, except that a natural latex with a non-volatile component content of 60% by weight is used instead of a mixture of natural, latex with synthetic.

Claims (2)

240457 5 Example 2 The procedure as in Example 1, except that the heat treated disintegrated polyester string fiber material is processed alone without blending with the disengaged spinning hair. EXAMPLE 3 The procedure as in Example 1, except that 50% of the fibrous web constitutes a 3: 1 blend of spunbonded and polypropylene string material. in that 60% of the fibrous fiber constituents are a 4: 1 blend of spunbond hair and polyamide string material. EXAMPLE 5 Procedure as in Example 1, except that natural latex alone with a non-volatile component of 60% by weight is used instead of the natural latex-synthetic mixture. SUBJECT OF THE PROCESS A method of producing a spunbonded fabric of the rubber-hair character of a spunbonded hair or other hairy materials and / or polyester-beaded fibrous material comprising operations such as heat treatment, blending, rune formation, molding, pressing and vulcanization, The fact that the terry is rendered thermally insoluble to a polyester undamaged, unless a specific gravity of between 1340 and 1380 kg is achieved. m-3, preferably 1 345 to 1 360 kg. m-1, and the thus treated polyester material is cooled and, after disintegration, is processed separately or mixed with the particularly loosened spinning hair and processed in the manner known per se.