SU665760A1 - Method of synthetic leather manufacturing - Google Patents

Description

...... I

A known method for the manufacture of artificial leather consists in that the fiber base is impregnated with a polyamide resin vono-sponge solution, immersed the impregnated base in water, squeezed, applied to the face. The side is a more concentrated solution of the binder, re-immersed in water, wring out and subjected to finishing.

This method is characterized in that as a binder, a mixture of butadiene nitrile acryl rubber with resins having rigid molecules, for example, anilineform aldehyde, perchlorovinyl or nitroylzlose, is used. .

For the manufacture of artificial leather by the proposed method, two solutions of the following composition are prepared, by weight.h .: Solution 1

Rubber SKN-40YUO

Koalin40

Sulfur2

Tiuram1

Zinc Oxide5

Rosin2

Acetone450

Solution 2

Kolloksilin10

Acetone90

Then mix 100 t.h. solution No. 1, 60 weight.h. solution No. 2 and 320 weight.h. acetone. The polymeric mixture is impregnated with nonwoven stitched base and placed in water aa 30 s, after which the base is passed through squeezing rolls,

Then a mixture consisting of SC of parts by weight is applied to the front side of the base. solution No. 1 and 60 weight.h. solution No. 2, so that 1 m accounted for 80 g of dry matter, on top of the BfooT satin weave covered with solution No. 2 at the rate of 130 g of dry matter per 1 m, and placed in water for 2 minutes, after which the slurry AGRP, volcannzukug at | 35 min, letter t, polish a non-steppey.

The resulting BCKycctBenRaa skin is both blind and healthy, and has the following properties:

Proceedings limit at

Pastazhevv, kg / mm

14-.0

Opusytelyuyu vyvneeniya,%. - 25460

Holding strength

single seam,

kgUmm thickness

in, O-12.0

Abrasion resistance, kg / nW.h9IOU25O

Resistance a lot. multiple deformity

More than 1 million

pppo: vapor permeability,

mg / cm h

5-1О

Permeability,

cm / cm

Up to 13

h

Waugh earrings

CM / CM C To 0.05

behind

6.0-90

0.5-0.85

3-7

Formula and 3 of 6 times

Opening the fabric of the original skin by impregnating the fiber base with a Binder dissolved in an organic solvent, immersing the base soaked in water, otJKHWa, applying a layer of the same bond, re-immersing in water,

squeezing and finishing, in order to increase the sanitary and hygienic properties of skin, with a mixture of butadiene nitrile rubber with resins having itccTKHe molecules as a binder. For example with nitrocellulose.

Claims (1)

A method of manufacturing artificial leather by impregnating a fibrous base with a Binder dissolved in an organic solvent, immersing the impregnated base in water, spin: applying a face layer of the same binder, re-immersing in water, Spin and finish, only a ra in and I mean that, with the delta of improving the sanitary-hygienic properties of artificial leather, a mixture of butadiene nitrile-acrylic rubber with resins having rigid molecules, for example nitrocellulose, is used as a binder.