SU455151A1 - Method of tanning leather - Google Patents
Method of tanning leatherInfo
- Publication number
- SU455151A1 SU455151A1 SU1721437A SU1721437A SU455151A1 SU 455151 A1 SU455151 A1 SU 455151A1 SU 1721437 A SU1721437 A SU 1721437A SU 1721437 A SU1721437 A SU 1721437A SU 455151 A1 SU455151 A1 SU 455151A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- tanning leather
- formaldehyde
- tanning
- skin
- carried out
- Prior art date
Links
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Description
1one
Изобретение относитс к кожевенной промышленности .The invention relates to the leather industry.
Известно дубление кож лигносульфоновыми дуб щими сульфитспиртовой барды, но при этом наблюдаетс незначительное повышение температуры сваривани , кожа приобретает некоторую жестеобразность и способность к короблению.Leather tanning with lignosulfone tanning sulfite-alcohol stillage is known, but a slight increase in the welding temperature is observed, and the skin acquires some stiffness and warping ability.
Цель изобретени - улучшение качества кожи.The purpose of the invention is to improve the quality of the skin.
Это достигаетс за счет того, что обработку сульфитспиртовой бардой .ведут в присутствии формальдегида с последующим добавлением в раствор -сернокислой соли, а в качестве последней используют сульфат хрома или алюмини .This is achieved due to the fact that the treatment with sulfite alcohol barda will be carried out in the presence of formaldehyde and then added to the solution of sulfuric acid salt, and chromium or aluminum sulfate is used as the latter.
Способ осуществл етс следующим образом.The method is carried out as follows.
Голье после пикелевани или частичного хромировани обрабатывают сульфитспиртовой бардой в присутствии формальдегида при температуре 35-40°С, рН 7,0-7,2 в течение 20-24 час. Количество формальдегида составл ет ) 0,8-2% от веса голь .After pickleing or partial chrome plating, the scorch is treated with sulfite-alcohol barda in the presence of formaldehyde at a temperature of 35-40 ° C, pH 7.0-7.2 for 20-24 hours. The amount of formaldehyde is 0.8-2% by weight mole.
По истечении этого времени добавл ют сульфат хрома или алюмини в количестве 0,6- 3% от веса голь в пересчете на СггОз.After this time, chromium or aluminum sulphate in an amount of 0.6-3% by weight mole in terms of CrO2 is added.
Через 2 час корректируют величину рН (в зависимости от назначени кожи), обработку продолжают 15-20 час, после чего ввод т кальцинированную соду (0,4-0,5%) и дальнейшую обработку производ т известным способом .After 2 hours, the pH value is adjusted (depending on the purpose of the skin), the treatment is continued for 15-20 hours, after which the soda ash (0.4-0.5%) is introduced and further processing is carried out in a known manner.
10ten
Предмет изобретени Subject invention
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1721437A SU455151A1 (en) | 1971-11-22 | 1971-11-22 | Method of tanning leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1721437A SU455151A1 (en) | 1971-11-22 | 1971-11-22 | Method of tanning leather |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU455151A1 true SU455151A1 (en) | 1974-12-30 |
Family
ID=20495182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1721437A SU455151A1 (en) | 1971-11-22 | 1971-11-22 | Method of tanning leather |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU455151A1 (en) |
-
1971
- 1971-11-22 SU SU1721437A patent/SU455151A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5011499A (en) | Tanning agent formulation for manufacture of semifinished leather products | |
| SU455151A1 (en) | Method of tanning leather | |
| KR880700084A (en) | Emulsion without chrome | |
| KR900001862A (en) | Tanning method by highly chromium extraction of tanning solution | |
| US1985439A (en) | Method of chrome tanning of leather | |
| GB1110091A (en) | Process for the rapid tanning of medium weight and heavy leather | |
| SU113523A1 (en) | A method of tanning hard leather | |
| SU148195A1 (en) | Method of tanning leather | |
| GB569385A (en) | Improvements in or relating to methods of preparing leather and to leather prepared thereby | |
| ATE11793T1 (en) | CHROME TANNING PROCESS WITH IMPROVED CHROME UTILIZATION. | |
| SU65975A1 (en) | The method of dressing sheepskin coat | |
| SU134810A1 (en) | The method of preparation of tan for tanning when developing, for example, hard leather | |
| SU147720A1 (en) | A method of tanning hard leather | |
| DE688738C (en) | Process for the aftertreatment of fully tanned leathers | |
| US1940610A (en) | Method of mineral tanning | |
| US3346324A (en) | Tanning with a condensation product of acrolein and formaldehyde | |
| ATE6164T1 (en) | PROCEDURE FOR DECALCIFYING SKINS. | |
| SU141249A1 (en) | Method for making liquid chromic extract | |
| SU1744116A1 (en) | Method of tanning leather for uppers | |
| SU1638165A1 (en) | Method for cattle hide leather processing for upper | |
| SU128969A1 (en) | Chrome tanning process for small leather upper | |
| SU1169994A1 (en) | Method of leather treatment | |
| US1516641A (en) | Tanning | |
| SU66704A1 (en) | The method of making fur coat sheepskin | |
| DE701549C (en) | Process for the production of tanned bare |