GB451361A - Improvements in or relating to leather-like products from rawhide and their method of manufacture - Google Patents
Improvements in or relating to leather-like products from rawhide and their method of manufactureInfo
- Publication number
- GB451361A GB451361A GB362335A GB362335A GB451361A GB 451361 A GB451361 A GB 451361A GB 362335 A GB362335 A GB 362335A GB 362335 A GB362335 A GB 362335A GB 451361 A GB451361 A GB 451361A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tanning
- sheet
- leather
- tanned
- class
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B2700/00—Mechanical treatment or processing of skins, hides or leather in general; Pelt-shearing machines; Making driving belts; Machines for splitting intestines
- C14B2700/27—Rotating drums for treating leather
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
Leather-like products are obtained by reducing rawhide to the p colloidal state by mechanical means and tanning the material so produced, the disintegration being carried out at a temperature low enough to prevent the formation <PICT:0451361/IV/1> of glue. The colloidally reduced material may be used to impregnate a sheet or bat of fibrous material which is then tanned, may be tanned and compressed into a block or sheet or may be extruded as a filament or sheet into a tanning solution. The raw hide may be beaten up with wood pulp or other cellulose material e.g. flax, hemp or jute, or may be mixed with inert or inorganic powders. Filaments formed by extruding the pulped material into a tanning bath may be compressed together to form blocks. The dispersed material may also be used to impregnate skins or leather which is then subjected to a tanning agent. The leather products described may be made more flexible by stuffing with oils or latex or dispersions of rubber before, after or during tanning. An apparatus suitable for the process comprises a beater having radial arms 13 coacting with toothed blocks 15 adjustable by screws and mounted in a drum 10. A block 18 having passages therein through which the beaters pass is arranged at the bottom of the drum. The dispersed material passes to a tank 25 and thence through sprinklers 28 from which it is discharged upon a sheet or web W passing over a suction box 30. The impregnated web then passes through a tanning vat 31 between squeezing rollers 33 and over a conveyer system 36 mounted in a housing provided with a suction fan 37 for drying the web. Specifications 156,142, [Class 81 (i)], and 247,089, [Class 76], are referred to.ALSO:<PICT:0451361/III/1> Leather like products are obtained by reducing raw-hide to the colloidal state by mechanical means and tanning the material so produced, the disintegration being carried out at a temperature low enough to prevent the formation of glue. The colloidally reduced material may be used to impregnate a sheet or bat of fibrous material which is then tanned, may be tanned and compressed into a block or sheet or may be extruded as a filament or sheet into a tanning solution. The raw hide may be beaten up with wood pulp or other cellulose material, e.g. flax, hemp or jute, or may be mixed with inert or inorganic powders. An apparatus suitable for the process comprises a beater having radial arms 13 coacting with toothed blocks 15 adjustable by screws and mounted in a drum 10. A block 18 having passages therein through which the beaters pass is arranged at the bottom of the drum. The dispersed material passes to a tank 25 and thence through sprinklers 28 from which it is discharged upon a sheet or web W passing over a suction box 30. The impregnated web then passes through a tanning vat 31 between squeezing roller 33 and over a conveyer system 36 mounted in a housing provided with a suction fan 37 for drying the web. Specifications 156,142, [Class 81 (i)], and 247,089, [Class 76], are referred to.ALSO:Leather-like products are obtained by reducing raw hide to the colloidal state by mechanical means and tanning the material so produced, the disintegration being carried out at a temperature low enough to prevent the formation of glue. The colloidally reduced material may be used to impregnate a sheet or bat of fibrous material which is then tanned, may be tanned and compressed into a block or sheet or may be extruded as a filament or sheet into a tanning solution. The raw hide may be beaten up with wood pulp or other cellulose material, e.g. flax, hemp or jute, or may be mixed with inert or inorganic powders. Leather grain skivings may be cemented on the surface of the sheets produced. Filaments formed by extruding the pulped material into a tanning bath may be compressed together to form blocks. The leather products described may be made more flexible by stuffing with oils or latex or dispersions of rubber before, after or during tanning. Specifications 156,142, [Class 81 (i)], and 247,089, [Class 70], are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB362335A GB451361A (en) | 1935-02-04 | 1935-02-04 | Improvements in or relating to leather-like products from rawhide and their method of manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB362335A GB451361A (en) | 1935-02-04 | 1935-02-04 | Improvements in or relating to leather-like products from rawhide and their method of manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB451361A true GB451361A (en) | 1936-08-04 |
Family
ID=9761815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB362335A Expired GB451361A (en) | 1935-02-04 | 1935-02-04 | Improvements in or relating to leather-like products from rawhide and their method of manufacture |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB451361A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115651993A (en) * | 2022-11-05 | 2023-01-31 | 江西兆丰皮业有限公司 | Production device and method for cow-head layer waterproof frosted leather |
-
1935
- 1935-02-04 GB GB362335A patent/GB451361A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115651993A (en) * | 2022-11-05 | 2023-01-31 | 江西兆丰皮业有限公司 | Production device and method for cow-head layer waterproof frosted leather |
| CN115651993B (en) * | 2022-11-05 | 2023-08-15 | 江西兆丰皮业有限公司 | Ox head layer waterproof frosted leather production device and method |
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