Method of finishing leather lining

 

(57) Abstract:

The invention relates to finishing lining leather from the hides of cattle and can be used in the leather industry. The method consists of grinding the front surface of the skin, the consolidation of the flesh side of a 10% aqueous solution of casein, applying a sealing of the soil, pressing, double applied coating paint with intermediate pressing and applying effective coverings. Spectacular floor contains aqueous nitrocellulose lacquer, pigment paste based on metal 1 side group subgroups and water. Then pressed again, fix the floor and pressed. The method allows to get the lining of the skin with high consumer properties and beautiful mother-of-pearl coating. table 1.

The invention relates to the leather industry and can be used when finishing lining leather from the hides of cattle.

There is a method of finishing lining leather from the hides of cattle, namely, that after drying and humidification processes and operations of the skin is subjected to grinding, taike and pressing. (Handbook of Tanner. Finishing, production control/ Ed. by N. allows you to get a leather lining with a stable color to dry and wet friction.

The closest analogue of the proposed technical solution is the way to finish lining leather from the hides of cattle, namely, that after drying and humidification processes and operations of the skin is subjected to pressing, grinding the front surface, the moisture, the breakdown in the drum and stretching, after which they are impregnating primer of the following composition, wt. %: kationaktivnaya polyurethane dispersion 9-10, kationaktivnaya additive based on the condensation products of amines and fatty acids 18-20, water, rest, and finally pressed. (EN 2148082 C1, 27.04.2000, With 14 11/00, With 14 In 1/44).

The disadvantage of this method is that it allows you to get a leather lining with a spectacular mother-of-pearl coating.

The technical result of the invention is to expand the range of high-quality lining leather from the hides of cattle.

This result is achieved by a method of finishing leather lining includes grinding the front surface of the skin, strengthening the flesh side of a 10% aqueous solution of casein, applying a sealing of the soil, pressing, double coating coating paint with intermediate pressing, nanonavi metal 1 side group subgroup 8,0-10,0 and water the rest, more pressing, pinning coating and final pressing.

The consolidation of the flesh side of the skin 10% aqueous solution of casein, a two-fold application of the coating paint with intermediate extrusion, drawing the eye-catching cover and then pressing and pinning allow you to get the lining of the skin with high consumer properties and beautiful mother-of-pearl coating.

The method is as follows.

Lining leather obtained from the skins of cattle by well-known methods, after drying and humidification processes and operations are subjected to grinding the front surface and fix the flesh side of the skins 10% aqueous solution of casein. After applying a sealing of the soil and pressing on them twice with intermediate pressing is applied coating paint, effective coating of the following composition, wt. %: water nitrocellulose lacquer 55,0-65,0, pigment paste based on a metal of group 1 side subgroups 8,0-10,0 and water the rest, then the skin is additionally pressed, fix and finally pressed. A spectacular composition of the coating is prepared by the sequential mixing of these components in the stated proportions.

Example 2. Lining leather obtained by known methods from the skins of cattle, trim, as in example 1, but as a spectacular coatings are applied on them the following composition, wt. %: water nitrocellulose lacquer Icalc W 312 - 60,0, pigment paste based on si - 9.0 and water - 31,0.

Example 3. Lining leather obtained by known methods from the skins of cattle, trim, as in example 1, but as a spectacular coatings are applied on them the following composition, Mar 4. Lining leather obtained by known methods from the skins of cattle, trim, as in example 1, but as a spectacular coatings are applied on them the following composition, wt. %: water nitrocellulose lacquer Icalc W 312 - 52,0, pigment paste based on Ag - 6.0 and water - 42,0.

Example 5. Lining leather obtained by known methods from the skins of cattle, trim, as in example 1, but as a spectacular coatings are applied on them the following composition, wt. %: water nitrocellulose lacquer Icalc W 312 - 68,0, pigment paste based on si - and water 12,0 - 20,0.

Quality indicators received skin compared to skin on the prototype presented in the table.

Using the proposed method allows to obtain a lining of leather from the skins of cattle with high consumer properties and beautiful mother-of-pearl coating.

Method of finishing leather lining, which consists in grinding the front surface of the skin, the consolidation of the flesh side of a 10% aqueous solution of casein, applying a sealing of the soil, pressing, double applied coating paint with intermediate pressing, applying the effective coating of the following composition, wt.PPy - 8,0-10,0

Water - the Rest

more pressing, clamping cover and the final pressing.

 

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1 tbl, 6 ex

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1 dwg, 1 tbl

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