Process for obtaining corium from bovine hide专利检索-肠溶衣药理专利检索查询-专利查询网

Process for obtaining corium from bovine hide

阅读：462发布：2023-03-05

专利汇可以提供Process for obtaining corium from bovine hide专利检索，专利查询，专利分析的服务。并且Corium, suitable for processing into edible food casings, is obtained from fresh, unsalted bovine hide by a process involving cooling the hide to 15* C. or below by washing, de-hairing the cooled hide with a lime solution of pH 12.6 or less and temperature not exceeding 15* C., washing the limed hide, defleshing, and finally removing the epidermal layer together with all hair follicles.，下面是Process for obtaining corium from bovine hide专利的具体信息内容。

权利要求

1. A PROCESS FOR OBTAINING CORIUM FROM BOVINE HIDE, WHICH COMPRISES WASHING FRESH UNSALTED BOVINE HIDE TO REDUCE THE HIDE TEMPERATURE TO 15*C. OR BELOW, DE-HAIRING THE COOLED HIDE BY CONTACTING IT WITH A LIME SOLUTION HAVING A PH NOT EXCEEDING 12.6 AND A TEMPERATURE NOT EXCEEDING 15*C., WASHING THE LIMED HIDE, DE-FLESHING THE HIDE, AND OBTAINING CORIUM FROM THE DE-FLESHED HIDE BY REMOVING FROM SAID DE-FLESHED HIDE THE EPIDERMAL LAYER TOGETHER WITH SUBSTANTIALLY ALL HAIR FOLLICLES, THEREBY LEAVING CORIUM AS RESIDUE.

2. A process as claimed in claim 1 wherein, prior to the de-hairing operation, the hide temperature is reduced to 11* C. or below.

3. A process as claimed in claim 1, wherein the pH of the liming solution does not exceed 12.2.

4. A process as claimed in claim 1, wherein the pH of the liming solution is approximately 11.6.

5. A process as claimed in claim 1, wherein the liming solution includes sodium hydrosulphide.

6. A process as claimed in claim 5, wherein the liming solution includes approximately 1 percent by weight of sodium hydrosulphide.

7. A process as claimed in claim 1, wherein the liming solution contains substantially no sodium sulphide.

8. A process as claimed in claim 1, wherein the hide remains in contact with the liming solution for a period of at least 10 hours.

9. A process as claimed in claim 1, wherein the liming solution/hide mixture is agitated intermittently or continuously in the course of the de-hairing operation.

10. A process as claimed in claim 1, wherein removal of the epidermal layer and hair follicles is effected by a splitting operation.

11. A process as claimed in claim 10, wherein the splitting operation is effected by means of a band knife or a rotary knife.

12. A process as claimed in claim 1, wherein in the course of removing the epidermal layer, the upper layer of the de-fleshed hide is removed to a depth of 2.5 mm.

13. A process as claimed in claim 1, wherein removal of the epidermal layer and hair follicles is effected by scraping.

14. A process as claimed in claim 1, wherein the separated epidermal layer is processed into leather.

15. A process as claimed in claim 1, wherein the steps required to obtain corium are completed within 24 hours of the death of the animal.

16. A process as claimed in claim 15, wherein the said steps are completed within 18 hours of the death of the animal.

17. A process as claimed in claim 1, which is carried out on hide obtained from animals 1 1/2 to 2 years old.

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Process for obtaining corium from bovine hide

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