RU4301U1 - MULTILAYERED REINFORCED MATERIAL - Google Patents

Abstract

1. A multilayer reinforced material comprising as a substrate a layer of plain weave fabric from synthetic yarns and cover layers of a polyvinyl chloride composition, characterized in that the substrate fabric contains twisted polyamide yarns of linear density 91 - 99 tex with a number of torsions equal to 150 - 200 cr / m, and has a base density of 8.3 - 8.9 / 10 cm and a surface density of 172 - 193 g / m. 2. The material according to claim 1, characterized in that the base fabric contains twisted polyamide yarns with a linear density of 91 to 99 tex. A material according to claim 1, characterized in that the weft backing fabric contains untwisted polyester yarns with a linear density of 110 to 112 tex. The material according to claim 1, characterized in that the cover layer is a polyvinyl chloride composition comprising polyvinyl chloride, stabilizer, plasticizer, pigment, filler and modifying additives.

Description

SHOGOSLAYNY REINFORCED MATERIAL

The utility model relates to light industry and, in particular, to the manufacture of multilayer reinforced material, the so-called artificial leather, used for the manufacture of spilled products for technical and domestic purposes, for example, flexible shaft-mine pipes, tent material, parachutes of haberdashery products, soft containers, containers.

A promising direction in the field of creating an assortment of such materials is the use of synthetic fibers as the basis for the polymer coating.

A multilayer material is known, including a technical fabric substrate made of synthetic fibers and cover layers of polyvinyl chloride compositions / I, 2, 3, 4 /.

To ensure high performance properties as a technical fabric in recent years, most often used fabrics of poly firmn / I, 2 / and polyamide fibers / I /. The use of these technical fabrics provides a light and plastic multilayer reinforced material. However, these materials have insufficient strength when used for a long period because of the thermal shrinkage of the synthetic technical fabric substrate and its low adhesion to the polymer bond: lean.

To eliminate this deficiency, the expanded structures of multilayer reinforced material are being developed: I) the presence of several covering layers of different composition; 2) the presence in the first covering layer of special adhesion additives; 3) selection of the structure of synthetic fabric for the substrate.

LM Add / 3/00 CGQf; 27/06, 27/30

The authors of this technical solution used all the techniques, but give preference to the selection of the substrate structure.

The closest analogue of this technical solution is a multilayer reinforced material, including as a substrate fabric of polypoly fiber with uneven

laying of warp and weft threads with a cell area of 0.6-1.6

when the ratio of the width of the cells to the distance between the cells is 0.72: 1, and the covering layers are made of polyvinyl chloride compositions / T /.

Unfortunately, this material is not without a non-named disadvantage.

The technical result achieved by using the proposed technical solution (utility model) increases the performance properties, and, in turn, the adhesion strength between the substrate fabric and the covering layer due to the use of a fabric with the necessary density of laying of threads and high tensile strength.

A multilayer reinforced material is proposed, including as a substrate a layer of plain weave fabric from synthetic yarns and cover layers from a polyvinyl chloride composition, where, according to this technical solution, the substrate fabric contains twisted polyamide yarns with a linear density of 91-99 tex based on the number of crunches , equal to 150-200 cr / m, and has a base density of 8.3-8.9 / 10 cm and a surface density of 172-193 g / m.

The best indicators are obtained for a material where fabric was used as a substrate, containing twisted polyester yarns with a linear density of 91-99 tex and non-twisted polyester yarns with a linear density of IIO-II2 tex on the basis of weft.

For cladding layers it is advisable to use a polyvinyl chloride composition comprising polyvinyl chloride, a stabilizer, a plasticizer, a pigment, a filler and modifying additives.

A shogoslayer reinforced material may contain 2 layers: a backing and one covering layer, 3 layers: a backing and two covering layers on the front side, or one / layer on the wrong and front side. Finally, the material can contain 4 layers: a substrate and a covering layer, one of which is on the worn side and two on the front side.

In the presence of two and bol: its covering layers, the composition of the applied PVC composition for them can be the same, but most often it is different in quality and quantity of additives.

As stabilizers in the PVC composition, a barium zinc or potassium-zinc stabilizer, calcium stearate, phosphate, stearin, their mixture, as well as a complex stabilizer of the SKS K-17 brand (TU 6-09-4346-78) are used.

Known mineral powder-like minerals are used as fillers: aluminum hydroxide, antimony trioxide, a mixture of aluminum oxide of the IM-2201 brand with a waste catalyst used for the production of rubbers.

The most suitable pigments are kaolin, chalk, titanium dioxide, yellow or lemon yellow crown, ruby varnish, iron oxide pigment, K-354 carbon, blue phthalopyan pigment.

The polyvinyl chloride composition may contain various modifying additives: rubbers, polymer additives, crosslinking agents for them, plasticizers, and also functional specials. additives - fireproof, antiseptic, etc.

. In the drawing (Fig. 1-4), the proposed material is presented in section, where A is a substrate of synthetic fabric coated with 1 or more layers of PVC composition. PCS. I - Two-layer material (Bj - the outer layer of the composition). FIG. 2 - One-sided three-layer material (Bp the lower adhesive layer from the PVC composition; B - the upper finishing layer). FIG. 3 - Double-sided three-layer material (Vd - the inside layer of GSH plastisol, Bj - the outer layer of PVC plastisol). FIG. 4 Double-sided four-layer material (Bg is the lower adhesive layer of SH-plastisol, Bj is the outer layer of SH-composite, B is the wrong layer of PVC plastisol),

The following are examples of the implementation of the proposed technical solution (utility model), which, like the figures in the drawing, will not exhaust / knives, design options of multilayer ashted material.

Example I. A shogoslayer asched material is made on an automated calender line by applying cover layers to a synthetic fabric substrate produced on a STE machine. 2175 of twisted polyamide fibers of linear density 93.5 tex with a twist index of 150-170 cr / m, manufactured according to TU b-TZ-2-88 (brand NGam A).

On plain weave fabric article C 6079-K wide

146-152 cm with a mass equal to 164-184 g / m, with a base density of 83-89 n / 10 cm, weft - 91-99 n / TO cm, I or 2 layers are applied (sequentially) from the polyvinyl chloride composition .

The production of reinforced material with a one-sided covering layer with a thickness of 0.32-0.50 mm is carried out at Т Т35-Т55С by fabric spreading with a polyvinyl chloride composition (hereinafter referred to as PVC composition), including (parts by weight):

The composition may contain, in addition, 5-15 m.h. a modifying polymer additive, for example, butadiene grade SKN-26.

Next, the two-layer1 material is subjected to heat treatment at Т Т65-195 ° С and embossed in a hexated gap between the embossing and rubber shaft in a gelling machine. As a result, an elastic, fire-resistant two-layer material for use in furniture upholstery, for the manufacture of household products, used in closed rooms, for the storage and storage of bulk and piece

PRODUCT (TOV ((IG. T).

If the requirements for water resistance of the reinforced material are met, it may contain 2 facing layers on one side of the synthetic fabric substrate, the lower (adhesive) and upper

(finishing). In the second case, a thinner topcoat layer 0.10-0.15 mm thick is applied to the lower adhesive layer of the bilayer material by duplication on the second calender at T T40TbO C from the PVC composition. The composition of the SH-composition can be the same as for the lower adhesive layer, but a higher dosage of plasticizer in the composition and a lower filler and pigment is desirable, for example, the latter is contained in an amount equal to 0.1-1.5 per May LLP .h.

The paramilitary three-layer material is subjected to heat treatment at a speed of 8-16 m / min and T 165-185 0, then embossed on the lithium surface of the material by the usual method. This one-sided material is sewn into various products intended for upholstery of the internal walls of the building, furniture interiors, mobile tent structures for vehicles, agricultural machinery and other equipment in the chemical, energy, oil industry (.2).

the weave of the article C 6081, where the main fibers are twisted polyamide (45 / f-), and the weft ones are untwisted polyester (5) with the number of threads equal to the basis of 80-84 n / 10 cm, for the weft - 8187 n / 10 cm, while the main polyamide yarns have a linear density of 93.5 tex, weft - III tex. Other tissue parameters are shown in Table I. Table I

Name of indicator and unit of measurement

Width of fabric, cm

2

Toltsina tissue, mm

the background

the edges

The mass of fabric, g / m

3.4.

Fiber content, May polyester (MA T 6-13-020077) polyamide (NGA m A TU 6-13-2 Number of threads per 10 cm

based on duck

The breaking load of the fabric strip 50 X 20 and mm, N on the basis of the weft

7.

Elongation at break of a strip of fabric 50 X 200 hl on the basis of the weft

Shrink fabric in hot air

8. warp weft

The bond between tissue and

9. PVC coating, n / m 0.

Surface electric

with resistance (TU-17-21-230-88),.

Breathability (TU-17-21-230-88)

The ratio of total porosity 2. to through

the cloth

1 cloth art. With 6081 art. S 6079-K

144-148

148-152

0.45

0.5 0.76

0.8

164-184

I57-I9I

54-56 8) 46-44

TOO

83-89

80-84

81-87 91-99

2T40 2440

29th

32

no more than 35 23

9.5 9

8 5

7.0

6.9 9 m 9 y

About 2.65

The sterial is made similar to the theme, as described in example I, but the snattles form the front covering layer with a thickness of 0.36-0.50 mm, then worn out with a thickness of 0.15-0.5 mm.

For the front cladding layer, a PVC composition similar to that shown in priler T is used for layer I, but with a high pigment content, for example, from 2.5 to 5 wt. at LLP PVC

For the back layer, PVC-plastisol of the following composition is used (May hours):

emulsion polyvinyl chloride - 100 plasti (1 indicator - 65-90

stabilizer - 1-4

filler - 10-30

pigment - 0.1-5

PVC plastisol is applied to the wrong side of the bilayer material with the help of a pasting device with drying chambers equal to 165-195 ° C, at a material speed of 8-16 m / min. The resulting three-layer material is fed to the embossing operation of its front surface.

The design of the material obtained - see drawing, (Fig. 3).

Note 3. The shogoslayer reinforced material consists of 4 layers: one fabric backing, described in Example 2, and three layers of OTJHbTx layers, including one back and two linden (lower adhesive and upper finishing). The lower adhesive layer is applied from the GOX plastisol using a pastonanos device and a Pico shaft mounted on the calender line, followed by heat treatment in the chamber of the drying unit at T ° 120-220 0. The weight gain of the layer is 30-50 g / m.

from K to shrinkage of the fabric, from f content of polyester fibers in the fabric, from stg uct and size of fabric cells, as well as the quantity of natural cells; solid additives in PVC plastisol. PVC plastisol includes (m.h.):

emulsion polyvinyl chloride - plasticizer LLP- 50-60

oligoeyira acrylate TGM-3- 24-26

crosslinking agent 5-TO

filler - T5-20

stabilizer - 2-5

pigment - O, TT, 5

As a cross-linking agent for oligoester acrylate, it is advisable to use the RU modifier, the condensation product of resorcinol and urotropin.

Next, the upper face layer of a PVC composite film is applied to the obtained two-layer reinforced material, similarly to Example T, 0.23-0.3 1 W thick. The speed of the calender line is 25-45 m / min. The temperature of the calender rolls is T45-T60 ° C. Recipe calendering layer as shown in prigdery T, 2.

The design of the material is illustrated in the drawing (Fig. 4). Finally, a backing layer is applied to the pastoral device using a squeegee made of PVC plastisol on a three-layer material. The composition of PVC plastisol is similar to the above, but contains a larger amount of pivlent (up to 6 m.u.h.) and does not contain a crosslinking agent. , the coated layer is dried, then embossed at T 2T5-235 ° C and a speed of 8-T2 m / min.

The following table 2 shows the indicators of the proposed multilayer reinforced material.

Metric Override and Unit of Measure

table 2

By npmiepy lio example Following example 123

As can be seen from Table 2, the proposed multilayer reinforced material has high performance characteristics: high strength, elasticity, sufficient water resistance and resistance to gasoline and oils.

The tests were carried out in accordance with GOST 29I5I-9I Awning materials with polyvinyl chloride coating for vehicles. General TU. The proposed material can be manufactured in an industrial environment at textile and chemical plants using standard equipment using industrial raw materials.

list of USED.HOWNED sources SHFORMA1SCH

t.A. No. 585094 MKM B 32 V, 27/00; D About, 3/06

Shogosloynaya material for welded tent structures priority 31.12.74, BI i 47, 1977.

2.A. C. No. 749960 GZHI D O, Z / O, B 32 V, 27/30 The method of obtaining reinforced material priority 18.04.77

BI No. 27, 1980

3.A. S. i 789645 MKI D O, S / A

The method of obtaining reinforced material priority 24.01.78, BI No. 47, 1980

4. Patent of the USSR No. 363252 SHI D 06, 3/04 The method of obtaining tent material priority 29.03.66,

BI No. 3, 1972.

Claims (4)

1. A multilayer reinforced material comprising as a substrate a layer of plain weave fabric from synthetic yarns and wrapping layers from a polyvinyl chloride composition, characterized in that the substrate fabric contains twisted polyamide yarns of linear density 91 - 99 tex with a number of torsions equal to 150 - 200 cr / m, and has a base density of 8.3 - 8.9 / 10 cm and a surface density of 172 - 193 g / m ² .  2. The material according to claim 1, characterized in that the base fabric contains twisted polyamide yarns with a linear density of 91 - 99 tex.  3. The material according to claim 1, characterized in that the weft backing fabric contains untwisted polyester yarns with a linear density of 110 - 112 tex. 4. The material according to claim 1, characterized in that the cover layer is a polyvinyl chloride composition comprising polyvinyl chloride, stabilizer, plasticizer, pigment, filler and modifying additives.