SU404850A1 - METHOD FOR THE DEVELOPMENT OF THE LEATHER OF CHROME-TANIDE PULPING - Google Patents
METHOD FOR THE DEVELOPMENT OF THE LEATHER OF CHROME-TANIDE PULPINGInfo
- Publication number
- SU404850A1 SU404850A1 SU1691147A SU1691147A SU404850A1 SU 404850 A1 SU404850 A1 SU 404850A1 SU 1691147 A SU1691147 A SU 1691147A SU 1691147 A SU1691147 A SU 1691147A SU 404850 A1 SU404850 A1 SU 404850A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- leather
- tanning
- chrome
- development
- tanide
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 5
- 238000004537 pulping Methods 0.000 title 1
- 239000010985 leather Substances 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000007747 plating Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 210000004207 dermis Anatomy 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Description
1one
Изобретение относитс к КОжевенной промышленности и может использоватьс при выработке юфтевой и шорноседельной кожи.The invention relates to the leather industry and can be used in the development of yuft and saddle leather.
Известен способ выработки кож хром - танидного дублени , заключающийс в хромировании , строгании и дублении растительными или синтетическими дубител ми в жировой ванне, рН которой равно 5-6.There is a known method for producing chrome tannin tanning leather, which consists of chrome plating, planing and tanning with vegetable or synthetic tanning agents in a fat bath, the pH of which is 5-6.
Предлагаемый способ позвол ет сократить производственный нроцесс.The proposed method allows to reduce the production process.
Это достигаетс тем, что дублени ведут при рН 8,0-8,2 в течение не менее 3 час с последующим понижением рЯдо4,5-5,5. При таком проведении процесса дублени сначала идет значительное ускорение диффузии танидов в дерму, чему способствует слабощелочна среда. Последующее понижение рН до 4,5-5,5 способствует закреплению дуб щих в толще кожевой ткани.This is achieved by tanning at a pH of 8.0-8.2 for at least 3 hours, followed by a decrease in the range of 4.5-5.5. With such a tanning process, first, there is a significant acceleration of the diffusion of tannides into the dermis, which is facilitated by a weakly alkaline medium. The subsequent lowering of the pH to 4.5-5.5 contributes to the consolidation of tanning in the thick leather.
Хромирование, строгание и жирование провод тс по типовой методике. Через 15 минChrome plating, planing and greasing are carried out according to a standard procedure. After 15 min
от начала жировани в ванну заливают 0,5% раствора аммиака и дают сухой или растворенный дубитель в количестве 6-8% в пересчете на таниды. В качестве дубител используют растительные или синтетические дуб щие или их смесь. Через 3,0 час в ванну в три приема заливают 1% предварительно разбавленной водой органической кислоты (уксусной или муравьиной). После этого кожи нромывают при тем1пературе 30-35°С в течениеfrom the beginning of fattening, 0.5% ammonia solution is poured into the bath and gives a dry or dissolved tanning agent in the amount of 6-8% based on tannides. Vegetable or synthetic tanning agents or their mixtures are used as tanning agents. After 3.0 hours, in a bath in three doses, pour 1% of an organic acid (acetic or formic), previously diluted with water. After that, the skin is harvested at a temperature of 30-35 ° C for
30 мин в проточной воде.30 min in running water.
Предмет изобретени Subject invention
Способ выработки кож хром-танидного дублени путем хромировани , строгани и дублени органическими дуб щими веществами и жировой ванне, отличающийс тем, что, с целью сокращени продолжительности процесса , дубление ведут при рН 8,0-8,2 не менее 3 час с последующим понижением рН до 4,5-5,5.The method of producing leather of chromium-tannic tanning by chrome plating, planing and tanning with organic tanning substances and a fat bath, characterized in that, in order to reduce the duration of the process, tanning is carried out at a pH of 8.0-8.2 for at least 3 hours, followed by a decrease pH up to 4.5-5.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1691147A SU404850A1 (en) | 1971-08-11 | 1971-08-11 | METHOD FOR THE DEVELOPMENT OF THE LEATHER OF CHROME-TANIDE PULPING |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1691147A SU404850A1 (en) | 1971-08-11 | 1971-08-11 | METHOD FOR THE DEVELOPMENT OF THE LEATHER OF CHROME-TANIDE PULPING |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU404850A1 true SU404850A1 (en) | 1973-10-22 |
Family
ID=20486037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1691147A SU404850A1 (en) | 1971-08-11 | 1971-08-11 | METHOD FOR THE DEVELOPMENT OF THE LEATHER OF CHROME-TANIDE PULPING |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU404850A1 (en) |
-
1971
- 1971-08-11 SU SU1691147A patent/SU404850A1/en active
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