RU46268U1 - FABRIC BASIS FOR COATINGS - Google Patents

Abstract

The utility model relates to the production of technical textile material intended for the manufacture of artificial leather and is used as a carrier layer under a rubber and polymer coating. The basis allows to improve the operational characteristics of polymeric materials and rubber products by increasing and equalizing the breaking load on the base and weft of the fabric; to exclude the process of sizing the main threads and, accordingly, the possibility of rotting of the fabric during operation; reduce the complexity and costs of production. For this, the fabric is made by plain weaving of polyester warp and weft threads. The main threads are made pneumatically connected with a linear density of 37 tex in the amount of 220 ... 248 threads per 10 cm, and the weft ones are made by polished with a linear density of 48 tex in the amount of 90 ... 150 threads per 10 cm. The surface density of the fabric is 140 ... 180 g / m ² .

Description

The utility model relates to the production of technical textile material intended for the manufacture of artificial leather, and is used as a carrier layer under a rubber and polymer coating.

Known technical harsh polyester-cotton fabric formed by plain weaving of threads from polyester-cotton yarn with a linear density of 25 × 2 tex containing 67% polyester fiber and 33% cotton fiber (art. 86099 TU 8388-024-00327586-98), intended for the manufacture of rubber products and for other technical purposes.

This fabric, having significant material consumption and laboriousness (surface density 190 g / m), is not strong enough for breaking load (80 N on the basis and 70 N on the weft), in addition, a significant content of cotton fiber (67%) reduces the operational characteristics of the finished product ( skin, etc.), due to the possibility of decay of the woven harsh base (undergoing the operation of sizing with starch adhesive solution).

The fabric was adopted as the prototype - the basis for coatings (art. Geb 67-400031289 TU RB 00204056.670.95), intended for use as a basis in the production of artificial leather, containing the main and

weft polyester textured yarn with a linear density of 25 tex plain weave, a surface density of 155 g / m ² . The disadvantages of this framework are:

- uneven strength characteristics of the base and weft (800 N and 300 N, respectively);

- great complexity in weaving (330 weft per 10 cm of fabric);

- great complexity in warping - preparing the main threads associated with the need for sizing textured threads;

- the possibility of rotting the base during operation due to residual adhesive composition (dressing).

The technical result of the claimed utility model is to improve the operational characteristics of polymeric materials and rubber products by increasing and equalizing the breaking load on the warp and weft of the fabric, eliminating the process of sizing the main threads, and, accordingly, the possibility of rotting the fabric during operation, reducing the complexity and cost of production.

The specified technical result is achieved by the fact that, in a fabric based on plain weaving of polyester textured warp and weft yarns, according to a utility model, 37 tex pneumoconnected threads in the amount of 220 ... 240 threads per 10 cm are used as the main threads, and as weft-crushed threads 48 tex in the amount of 110 ... 150 threads per 10 cm.

The unevenness of the breaking load on the warp and weft of the fabric cloth 800 N and 300 N (inherent in the analogue), caused by an unsuccessful combination of the number and linear density of the threads, is eliminated in the inventive model due to the use of threads with a more equal product of their number and the linear density of the weft and the base, as a result, explosive loads are 1400 N and 824 N respectively.

A decrease in the complexity of weaving is achieved by increasing the linear density of the weft yarn and reducing their number and, as a result, increasing the productivity of equipment by 2.2 times (330 and 150 weft).

The reduction of material consumption and the complexity of the preparation of the main threads is achieved through the use of polyester textured pneumoconnected threads that do not require sizing operations in weaving. At the same time, the possibility of rotting of the fabric during its operation is eliminated.

The table below shows the indicators of the claimed basis for coatings and the basis of the prototype.

Example No. The number of threads per 10 cm Breaking load of a strip of fabric (50 × 200) mm, N The linear density of the thread, tex Surface density, g / mm ² Base / weft breaking load ratio The foundation Weft The foundation Weft The foundation Weft 1 2 3 4 5 6 7 8 nine 1 248 130 1400 824 37 48 166 1.7 2 220 180 1300 1150 37 48 180 1.13 3 228 125 1200 790 37 48 140 1,5 4 250 330 800 300 25 25 155 2.7

Example 1

The basis for coatings is made by plain weaving of the main polyester textured pneumocoupled threads with a linear density of 37 tex in the amount of 248 threads per 10 cm and weft polyester weaved strands with a linear density of 48 tex in the amount of 130 threads per 10 cm. Breaking load of 1400 N and 827 N of warp and weft respectively. Tear strength increased by 75% and 175%. The ratio of the breaking load on the base and weft is 1.7.

Example 2

The same, the main threads have a linear density of 37 tex in the amount of 220 threads per 10 cm, and weft threads are made with a linear density of 48 tex in the amount of 180 threads per 10 cm, an breaking load of 1300 Ni 1150 N, respectively. Strength increased by 65 and 280%. The breaking load ratio is 1.13.

Example 3

The same, the main threads have a linear density of 37 tex in the amount of 228 threads per 10 cm, and the weft ones have a linear density of 48 tex in the amount of 125 threads per 10 cm. Breaking load of 1200 N and 790 N of warp and weft, respectively. Breaking load increased by 65 and 175%. The ratio of the breaking load of the base / weft - 1.5.

Example 4 (prototype).

The basis for coatings is made by plain weaving of the main polyester textured threads with a linear density of 25 tex in the amount of 250 threads per 10 cm and weft polyester textured threads of 25 tex in the amount of 330 threads per 10 cm. Breaking load of 800 and 300 N, respectively. The breaking load ratio is 2.7.

Thus, the above table confirms the achievement of the technical result.

Claims (1)

The base fabric for coatings, formed by plain weaving of polyester warp and weft threads, characterized in that the warp threads with a linear density of 37 tex in the amount of 220 ... 248 threads per 10 cm are made pneumatically connected, and the weft threads in the amount of 90 ... 150 threads per 10 cm are made of polished with a linear density of 48 tex, and the surface density of the fabric is 140 ... 180 g / m ² .