WO1996033289A1 - Procedimiento para mejorar el rendimiento en area en la fabricacion de curtidos - Google Patents
Procedimiento para mejorar el rendimiento en area en la fabricacion de curtidos Download PDFInfo
- Publication number
- WO1996033289A1 WO1996033289A1 PCT/ES1996/000017 ES9600017W WO9633289A1 WO 1996033289 A1 WO1996033289 A1 WO 1996033289A1 ES 9600017 W ES9600017 W ES 9600017W WO 9633289 A1 WO9633289 A1 WO 9633289A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- skin
- area
- procedure
- manufacture
- water
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000011282 treatment Methods 0.000 claims abstract description 9
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- 238000010981 drying operation Methods 0.000 abstract description 4
- 239000010985 leather Substances 0.000 abstract description 3
- 235000009508 confectionery Nutrition 0.000 abstract description 2
- 239000000975 dye Substances 0.000 abstract description 2
- 238000001035 drying Methods 0.000 description 6
- 238000004043 dyeing Methods 0.000 description 3
- 238000007605 air drying Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 241000283707 Capra Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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
- C14B1/26—Leather tensioning or stretching frames; Stretching-machines; Setting-out boards; Pasting boards
Definitions
- the present Patent of Invention refers to a procedure to increase the yield in area and adaptation of the modulus of elasticity in the manufacture of tanned, applicable after the processes of tanning, dyeing or greasing, and before the drying process.
- the improvement in area is apparent, as it gradually disappears, in the subsequent finishing operations, especially when the skin is rehumecta and dries again. This improvement also disappears partially or totally during storage of the finished product.
- the process of the present invention consists of a heat treatment on wet skin previously extended or stretched, with the particularity that during said treatment there should be no significant loss of the water content of the skin.
- the tension to be applied will depend mainly on the type of skin and its final destination; Thus, for example, for flower skins the linear stretches will be 5 to 25%, and for plush, serrajes and skins that require low elasticity, the elongations may be higher.
- the skins thus arranged undergo a heat treatment in an open or closed enclosure, with eventual supply of water or its vapor, to ensure the maintenance of the water content of the skin and the temperature of the skin / water / air assembly throughout the treatment.
- the temperature applied in the heat treatment will depend on the characteristics of the skin and its final destination, but will be between 40 and 100 degrees Celsius, preferably between 50 and 90 degrees Celsius, with a duration between 2 minutes and several hours, preferably between 10 and 30 minutes. If from this treatment, object of the present invention, the drying process is continued, this will be carried out by any of the conventional methods, even on the stretched skin, although before it is preferable to reduce the applied tension and proceed to a conventional drying
- the surface performance improvements obtained with the treatment object of the present invention are between 5 and 15% for conventional tanning processes in which the elasticity of the flower must be controlled.
- the mentioned values can be exceeded in the case of plush and serrajes skins, and in the cases in which skins with reduced elasticity are required, destined, for example to confection, upholstery and some types of footwear.
- the treatment object of this Invention Patent cannot be part of the so-called drying process, since it is very important that there is no loss of water during it. Acting in this way, the regularity of production is controlled and, above all, greater efficiency and safety is achieved in improving the performance in the area.
- the process of the invention is applicable to tanned skins, beaten or not, of animals of all species, preferably sheep, goats and cattle.
- Group A undergoes a conventional vacuum and ambient air drying process.
- Group B skins are clamped in appropriate frames with a linear stretch of ten percent, and immersed for 15 minutes in water at 85 "C, in a container prepared for this purpose. After this heat treatment the frames are removed, allow the skins to cool for a few minutes and finally free themselves from the tweezers, then they undergo a conventional drying of vacuum and ambient air, such as that performed with the skins of group A.
- the two groups of skins A and B are subjected to conventional conditioning and softening, allowed to stand stacked for 48 hours, and the area of each of the leaves is measured. It is found that the total area of group B is 9.3% higher than the total area of group A.
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)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
- Drying Of Semiconductors (AREA)
- Adornments (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU45406/96A AU4540696A (en) | 1995-04-18 | 1996-01-31 | Process for improving the surface yield in the fabrication o f tanned hides |
US08/765,103 US5830238A (en) | 1995-04-18 | 1996-01-31 | Process for improving the surface yield in the fabrication of tanned hides |
DE69624314T DE69624314D1 (de) | 1995-04-18 | 1996-01-31 | Verfahren zur verbesserung der oberflächenerweiterung bei der herstellung von gegerbten häuten |
EP96901353A EP0773299B1 (en) | 1995-04-18 | 1996-01-31 | Process for improving the surface yield in the fabrication of tanned hides |
AT96901353T ATE226259T1 (de) | 1995-04-18 | 1996-01-31 | Verfahren zur verbesserung der oberflächenerweiterung bei der herstellung von gegerbten häuten |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09500820A ES2094698B1 (es) | 1995-04-18 | 1995-04-18 | Procedimiento para mejorar el rendimiento en area en la fabricacion de curtidos. |
ESP9500820 | 1995-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996033289A1 true WO1996033289A1 (es) | 1996-10-24 |
Family
ID=8290209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES1996/000017 WO1996033289A1 (es) | 1995-04-18 | 1996-01-31 | Procedimiento para mejorar el rendimiento en area en la fabricacion de curtidos |
Country Status (8)
Country | Link |
---|---|
US (1) | US5830238A (es) |
EP (1) | EP0773299B1 (es) |
AT (1) | ATE226259T1 (es) |
AU (1) | AU4540696A (es) |
DE (1) | DE69624314D1 (es) |
ES (1) | ES2094698B1 (es) |
PT (1) | PT773299E (es) |
WO (1) | WO1996033289A1 (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060265967A1 (en) * | 2005-05-24 | 2006-11-30 | 3M Innovative Properties Company | Abrasive articles and methods of making and using the same |
ITVI20080034A1 (it) * | 2008-02-12 | 2009-08-13 | Leander Leather Consulting Coop U A | Metodo e impianto per il trattamento di prodotti laminari quali pelli industriali e similari. |
DK178349B1 (da) * | 2014-10-28 | 2016-01-04 | Franz Holding Aps | Fremgangsmåde samt procesanlæg for udstrækning og behandling af pelsværk |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1138835A (en) * | 1965-02-05 | 1969-01-01 | Shoe & Allied Trades Res Ass | Improvements in or relating to the treatment of leather or leather-like materials |
GB1429480A (en) * | 1972-12-22 | 1976-03-24 | Shoe & Allied Trades Res Ass | Leather production |
US4148947A (en) * | 1969-02-10 | 1979-04-10 | Statni Vyzkumny Ustav Kozedelny | Method for treating leathers |
DE3546048A1 (de) * | 1986-07-16 | 1987-06-25 | Nicola Lackovic | Verfahren und einrichtung zum behandeln von haeuten in einem gerbfass |
GB2236111A (en) * | 1989-09-22 | 1991-03-27 | Laszlo Horvath | Increasing the area yield of chrome tanned leathers |
-
1995
- 1995-04-18 ES ES09500820A patent/ES2094698B1/es not_active Expired - Fee Related
-
1996
- 1996-01-31 DE DE69624314T patent/DE69624314D1/de not_active Expired - Lifetime
- 1996-01-31 AU AU45406/96A patent/AU4540696A/en not_active Abandoned
- 1996-01-31 AT AT96901353T patent/ATE226259T1/de not_active IP Right Cessation
- 1996-01-31 US US08/765,103 patent/US5830238A/en not_active Expired - Fee Related
- 1996-01-31 PT PT96901353T patent/PT773299E/pt unknown
- 1996-01-31 WO PCT/ES1996/000017 patent/WO1996033289A1/es active IP Right Grant
- 1996-01-31 EP EP96901353A patent/EP0773299B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1138835A (en) * | 1965-02-05 | 1969-01-01 | Shoe & Allied Trades Res Ass | Improvements in or relating to the treatment of leather or leather-like materials |
US4148947A (en) * | 1969-02-10 | 1979-04-10 | Statni Vyzkumny Ustav Kozedelny | Method for treating leathers |
GB1429480A (en) * | 1972-12-22 | 1976-03-24 | Shoe & Allied Trades Res Ass | Leather production |
DE3546048A1 (de) * | 1986-07-16 | 1987-06-25 | Nicola Lackovic | Verfahren und einrichtung zum behandeln von haeuten in einem gerbfass |
GB2236111A (en) * | 1989-09-22 | 1991-03-27 | Laszlo Horvath | Increasing the area yield of chrome tanned leathers |
Also Published As
Publication number | Publication date |
---|---|
ES2094698A1 (es) | 1997-01-16 |
ES2094698B1 (es) | 1997-11-16 |
PT773299E (pt) | 2003-02-28 |
EP0773299B1 (en) | 2002-10-16 |
DE69624314D1 (de) | 2002-11-21 |
AU4540696A (en) | 1996-11-07 |
EP0773299A1 (en) | 1997-05-14 |
US5830238A (en) | 1998-11-03 |
ATE226259T1 (de) | 2002-11-15 |
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