# US 4,391,601 A · Writing parchment and methods for the production thereof

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- Number: US 4,391,601 A
- Document ID: US4391601A
- Status: Granted
- Kind: A
- Application number: 06/328,070
- Filed: 1981-12-07
- Granted: 1983-07-05
- Earliest claimed: 1980-12-26
- Inventors: Shmuel Y. Herman
- Web page: https://patentgrep.com/patent/US4391601A

## CPC

- C14C 13/00: Manufacture of special kinds or leather, e.g. vellum (chamois tanning C14C3/14)
- C14C: CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING (bleaching of leather or furs D06L; dyeing of leather or furs D06P)

## Abstract

The invention provides fine writing parchment made from the skins of turkeys. The invention also provides a process for preparing fine writing parchment from the skins of turkeys comprising liming, defatting, washing and stretching the skins.

## Claims

### Claim 1

Fine writing parchment made from the skins of turkeys.

### Claim 2

A process for preparing fine writing parchment from the skin of turkeys comprising liming, defatting, washing and stretching said skins.

### Claim 3 (depends on 2)

A process according to claim 2 wherein said liming is carried out for a period of 24-72 hours.

### Claim 4 (depends on 2)

A process according to claim 2 wherein accelerating agents are added to the lime solution.

### Claim 5 (depends on 2)

A process according to claim 2 wherein said skins are defatted with barium sulfate.

### Claim 6 (depends on 2)

A process according to claim 2 wherein before liming said skins are flattened, frozen and the frozen fat is cut off therefrom.

### Claim 7 (depends on 2)

A process according to claim 2 wherein an opaquing agent is added to said skins.

### Claim 8 (depends on 1)

Fine, vellum-like writing parchment according to claim 1 whenever made from limed, defatted, washed and stretched turkey skins.