FR2595375A1 - Process for the manufacture of an expanded structure whose main part is made of leather and structure obtained by this process - Google Patents
Process for the manufacture of an expanded structure whose main part is made of leather and structure obtained by this process Download PDFInfo
- Publication number
- FR2595375A1 FR2595375A1 FR8603186A FR8603186A FR2595375A1 FR 2595375 A1 FR2595375 A1 FR 2595375A1 FR 8603186 A FR8603186 A FR 8603186A FR 8603186 A FR8603186 A FR 8603186A FR 2595375 A1 FR2595375 A1 FR 2595375A1
- Authority
- FR
- France
- Prior art keywords
- leather
- skins
- sheet
- deployment
- strip
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
- B32B9/025—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch comprising leather
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H39/00—Associating, collating, or gathering articles or webs
- B65H39/14—Associating sheets with webs
-
- 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
- C14B7/00—Special leathers and their manufacture
- C14B7/02—Composite leathers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0088—Expanding, swelling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Ln présente invention concerne un procédé d fabri
cation d'une structure déoployée dont la partie principale
est en cuir et une structure obtenue suivant ce procédé.The present invention relates to a method of manufacturing
cation of a de-deployed structure, the main part of which
is made of leather and a structure obtained by this process.
on connaît déjà des structures dépioyées en treillis
qui sont obtenues en découpant dans une plaque ou feuille
coherente des rangées parallèles de fentes, disposées de
façon alternes entre deux rengées voisines, et en dépioyant
ensuite ia structure par traction dans un sens perpendicu
iaire h celui des fentes.we already know structures that have been removed from the trellis
which are obtained by cutting from a plate or sheet
consistent parallel rows of slots, arranged in
alternately between two neighboring reengines, and by spoiling
then the structure by traction in a perpendicular direction
iaire h that of the slots.
Les structures et leurs procédés de fabrication ont
fait l'objet de plusieurs brevets qu'elles soient en métall
comme décrit dans le brevet français FR-A 2 421 605, qu'ei-
les soient en cuir comme décrit dans le brevet Reige BE
531 033, qu'eiles soient en mousse homogàne ou revêtue comme
décrit le brevet francais FR-A- 2 @@4 766. ou tout autre
matière moulable comme décrit dans le brevet BB i 422 h4n
dans iequei la possibilité de matrices en cuir est éviquée.The structures and their manufacturing processes have
is the subject of several patents, whether in metal
as described in French patent FR-A 2 421 605, that ei-
be in leather as described in the Reige BE patent
531 033, whether they are of homogeneous foam or coated as
describes the French patent FR-A- 2 @@ 4 766. or any other
moldable material as described in patent BB i 422 h4n
in which the possibility of leather dies is mentioned.
On connaît égaiement des compiexes dont l'élément
supzrieur est une structure déployée en cuir et dont l'élé-
ment inférieur n'est pas déployé, soit constituant une sous
couche plane, soit de par sa nature venant combler les vides
laissés par le déployaqe, comme c'est le cas- par exemple
d'une fourrure, tel que decrit dans le brevet US 2 '31 202
On connaît aussi des complexes dont l'élément supé
rieur est une structure dàployée revêtue de cuir et dont
l ment inférieur ou intermédiaire est déployé mais dàcaié
par rapport à l'élément supérieur, tel que décrit dans le
brevet français FR-A- 2 004 766 déjà cité.We also know compiexes whose element
supzrieur is a structure made of leather and the ele-
inferior is not deployed, either constituting a sub
flat layer, or by its nature filling in the gaps
left by the deployment, as is the case - for example
a fur, as described in US Patent 2,331,202
We also know complexes whose superior element
rieur is a deployed structure covered in leather and
the lower or intermediate element is deployed but may have
relative to the upper element, as described in the
French patent FR-A- 2 004 766 already cited.
On connaît d'autres compeiexes dont l'élément supé
rieur est constitué par une feuille de cuir simplement per
forée mais non déployée et dont l'élément inférieur est une
doublure en tissu, comme décrit dans ie brevet français FR-A :1 n15 n22. La fabrication d'un tel complexe ne pose pas de
problèmes particuliers car la feuille de cuir étant simp
lement perforée et non déployée reste dimensionnellement
stable au cours de l'opération de doubiaqe avec le tissu, ce qui permet de réaliser des pinces de grandes dimensions par simple déposes de peaux encollées et pressage sur la doublure s-upport, eile même de qrande dimension.We know other compeiexes whose superior element
laughing consists of a sheet of leather simply per
drilled but not deployed and the lower element of which is a
fabric lining, as described in the French patent FR-A: 1 n15 n22. The manufacture of such a complex does not pose any
special problems because the leather sheet is simp
slightly perforated and not deployed remains dimensionally
stable during the doubiaqe operation with the fabric, which makes it possible to produce pliers of large dimensions by simple removal of glued skins and pressing on the liner s-upport, even very large dimension.
Si l'on veut effectuer la même opération avec une feuille de cuir dépioyée et non perforée que l'on disposerait sur une laie de tissu, on se heurte à un certain nombre de difficultés qui ne permettent ni une fabrication de type industriel, ni d'obtenir un produit à l'aspect réqulier. En effet, lorsque l'on dépioie une feuille de cuir, i'dissti- cité naturelle du cuir tend à lui faire reprendre ses dimensions oriqinelles et il n'est pas possible de procéder au collage ou adhésion sur un support sans maintenir en permanence, un effort de traction.On s'aperçoit alors que sous la traction, d'une part les lanières des mailles se redressent par rapport au plan moyen de ia structure et que d'autre part il est pratiquement impossible d'obtenir des maiiles régulières car l'élasticité d'une feuille de cuir, maté riau naturel, n'est pas uniforme en tous ses points. If one wishes to carry out the same operation with a sheet of loose and unperforated leather that one would have on a sheet of fabric, one encounters a certain number of difficulties which do not allow either an industrial type manufacture, nor '' obtain a product with a quirky appearance. Indeed, when a sheet of leather is removed, the natural instability of the leather tends to make it regain its original dimensions and it is not possible to bond or adhere to a support without permanently maintaining it, We can see that under traction, on the one hand, the mesh straps straighten with respect to the average plane of the structure and, on the other hand, it is practically impossible to obtain regular fibers because the elasticity of a sheet of leather, a natural material, is not uniform in all its points.
Le redressement des lanières a pour effet de ne pouvoir réaliser le collage ou l'adhésion sur un support, que sur seulement une petite surface de la lanibre, ce qui a pour conséquence de rendre fragile la cohésion du complexe, notamment lorsqu'il est soumis à des frottements répétés coté cuir déployé comme cela est le cas lors. de l'utilisa- tion comme revêtement de siège. The straightening of the strips has the effect of being able to achieve bonding or adhesion on a support, only on a small surface of the strip, which has the consequence of making fragile the cohesion of the complex, especially when it is subjected to repeated friction on the expanded leather side as is the case during. use as a seat cover.
L'irrégularité de la dimension des mailles est un inconvznient si l'on veut utiliser le complexe dans un but esthétique, cette irréqularité déjà notoire sur une peau, se trouve encore plus visibie lorsque l'on juxtapose deux peaux déployées cote à côte car les irréqularités ne sont jamais les mêmes d'une oeau à l'autre , or beaucoup.d'utilisations de ce qenre de complexes nécessitent l'utilisation de piusieurs peaux. The irregularity of the mesh size is a disadvantage if you want to use the complex for an aesthetic purpose, this already notorious irregularity on a skin, is even more visible when you juxtapose two skins deployed side by side because the irregularities are never the same from one water to another, but many uses of this kind of complex require the use of several skins.
Le procédé proposé remédie à ces inconvénients, ii à l'avantage d'être simple et adapté aux équipements industriels existants. The proposed process overcomes these drawbacks, ii the advantage of being simple and suitable for existing industrial equipment.
I1 consiste à doubler , avant déployage, les peaux en feuilles de cuir avec une feuille mince, constituant une sous-couche en matériau très peu élastique et suffisamment résistant pour supporter l'opération de déployage, autrement dit avec une feuille mince en matériau déployable sans retrait, ce qui est le cas des métaux comme l'aluminium par exemple et de certains plastiques comme le polypropylène par exemple. C'est ce complexe cuir sous-couche très peu élastique, qui peut ensuite entre déployé avec le matériel qénéralement utilisé pour déployer le métal, permettant d'obtenir une structure à mailles très réqulibres aux confiqurations désirées. I1 consists of doubling, before deployment, the skins made of leather sheets with a thin sheet, constituting an underlay of material that is very inelastic and sufficiently resistant to withstand the deployment operation, in other words with a thin sheet of deployable material without shrinkage, which is the case for metals such as aluminum for example and certain plastics such as polypropylene for example. It is this complex leather, very inelastic underlayment, which can then be deployed with the material generally used to deploy the metal, making it possible to obtain a very balanced mesh structure with the desired confiqurations.
Cependant comme le déployaqe en grande longueur a pour effet de redresser les lanières après étirage même avec ie métal, ii convient de passer ce complexe sous presse, entre deux cylindres par. exemple, pour l'aplanir, comme souhaité. L'aplatissage peut se faire à froid pour une sous couche métallique mais il doit se faire à chaud pour une sous-couche plastique. Le complexe étant maintenu sous tension pour conserver l'ouverture des mailles, on peut le faire passer entre deux cylindres par- exemple dont le cylindre du bas, porté à la température de déformation du plastique, est seul chauffé compte tenu du pouvoir isolant de la couche supérieure de cuir. However, as the deployment in great length has the effect of straightening the strips after stretching even with the metal, it is advisable to pass this complex under press, between two cylinders by. example, to flatten it, as desired. The flattening can be done cold for a metallic under layer but it must be done hot for a plastic under layer. The complex being kept under tension to keep the mesh open, it can be passed between two cylinders, for example, the bottom cylinder, brought to the plastic deformation temperature, is only heated taking into account the insulating power of the upper layer of leather.
L'invention présente en plus l'avantage de pouvoir réaliser le déployage en continu et sur de qrandes lonqueurs. Les peaux ou feuilles de cuir pouvant être déposées et coilées les unes à la suite des autres sur la feuille support, elle-meme livrée en rouleaux de grande lonqueur, le complexe obtenu peut être ensuite enroulé sur des hobines qui sont par ia suite placées en amont des machines h dàplo- yer. The invention also has the advantage of being able to carry out the deployment continuously and over large lengths. The skins or sheets of leather can be deposited and coiled one after the other on the support sheet, itself delivered in rolls of large length, the complex obtained can then be wound on coils which are then placed in upstream of the hoeing machines.
Cela présente l'avantage d'une part de réduire le coût du déployaqe, qui peut se faire en continu, et d'autre per de pouvoir livrer aux utilisateurs des rouleaux de cuir déployé en grande lonqueur ce qui permet de le découper aux dimensionns désirées comme d'envisager un dépot et collage en continu sur un support de base comme un tissu de couleur pour obtenir un effet esthétique. This has the advantage on the one hand of reducing the cost of deployment, which can be done continuously, and on the other of being able to deliver to users rolls of leather deployed in large length, which allows it to be cut to the desired dimensions. like considering a continuous deposit and collage on a basic support like a colored fabric to obtain an aesthetic effect.
9n décrira ci-sprès, à titre d'exempie non limitatif, une forme d'exécution de la présente invention,en référence au dessin annexé sur lequel
La figure I est un schéma illustrant ia premiare phase du procédé suivant l'invention à savoir ie dcublage des peaux de cuir avant dzpioyaqe. 9n will describe below, by way of non-limiting example, an embodiment of the present invention, with reference to the accompanying drawing in which
Figure I is a diagram illustrating the first phase of the process according to the invention, namely the removal of leather skins before spraying.
La fiqure 2 est un schéma illustrant la seconde phase du procédé à savoir l'ppération complèter de déployage du complexe. Figure 2 is a diagram illustrating the second phase of the process, namely the complete operation of deploying the complex.
La fiqure 3 est une vue en perspective schématique d'une peau de cuir déployée avec sa doublure. Figure 3 is a schematic perspective view of an expanded leather skin with its lining.
La fiqure 1 représente la première phase du oriocédé suivant l'invention, à savoir l'opération de doublage. Une sous-couche 2 est déroulée, sous forme de bande, à partir d'un dévidoir 1, elle est ensuite encollée sur sa face supérieure en passant sous un dispositif d'encollage 3. On dépo- se ensuite des peaux de cuir 4, préalablement découpées aux mêmes dimensions, sur la bande 2 de la sous-couche déroulée et i'assembiage passe immédiatement après entre une paire de rouleaux superposés 5 et 6. Figure 1 represents the first phase of the process according to the invention, namely the dubbing operation. A sublayer 2 is unwound, in the form of a strip, from a reel 1, it is then glued on its upper face, passing under a gluing device 3. Next, leather skins 4 are deposited, previously cut to the same dimensions, on the strip 2 of the unwound sub-layer and the assembly passes immediately after between a pair of superimposed rollers 5 and 6.
"n obtient ainsi un complexe 7 à forte adhésion qui passe sur un rouieau de renvoi 8 puis s'enroule sur une bobine 9 entraînée en rotation par un moteur 10 piiote par un dispositif de commande 11 relié au poste de dépose des peaux. "n thus obtains a complex 7 with strong adhesion which passes over a return idler 8 then is wound on a coil 9 driven in rotation by a motor 10 driven by a control device 11 connected to the station for depositing the skins.
La fiqure 2 représente, la seconde phase du procédé suivant l'invention, à savoir l'opération complete de déplo- yaqe du complexe 7 dérouié à partir d'un dévidoir 12, qui passe d'abord à travers une station de déployage 13 puis immédiatement après entre une paire de rouieaux presseurs la et 15 dont le rouleau inférieur 15 peut être chauffé. nn obtient ainsi un complexe déployé à plat 36 qui s'enroule sur une bobine 17 entraînée en rotation par un moteur 18 piloté par un dispositif d'asservissement 19. Figure 2 represents the second phase of the process according to the invention, namely the complete operation of deploying the complex 7 unraveled from a reel 12, which first passes through a deployment station 13 and then immediately after between a pair of pressing rollers 1a and 15, the lower roller 15 of which can be heated. nn thus obtains a complex deployed flat 36 which is wound on a coil 17 driven in rotation by a motor 18 controlled by a servo device 19.
La fiqure 3 représente une peau de cuir 4 déployée avec sa doublure 2. Les lanières 4a de cette peau 4 sont situées dans un même plan et forment entre elles des mailles parfaitement- régulières, chaque lanière étant accolée à une lanière sous-Jacente de même largeur 2a, faisant partie de la sous-couche 2. Figure 3 represents a leather skin 4 deployed with its lining 2. The straps 4a of this skin 4 are located in the same plane and form between them perfectly regular mesh, each strap being attached to an underlying strap similarly width 2a, forming part of the sub-layer 2.
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8603186A FR2595375B1 (en) | 1986-03-06 | 1986-03-06 | METHOD FOR MANUFACTURING A DEPLOYED STRUCTURE OF WHICH THE MAIN PART IS OF LEATHER AND STRUCTURE OBTAINED ACCORDING TO THIS PROCESS |
FR8715576A FR2622896B2 (en) | 1986-03-06 | 1987-11-10 | METHOD FOR MANUFACTURING A DEPLOYED STRUCTURE OF WHICH THE MAIN PART IS OF LEATHER AND STRUCTURE OBTAINED ACCORDING TO THIS PROCESS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8603186A FR2595375B1 (en) | 1986-03-06 | 1986-03-06 | METHOD FOR MANUFACTURING A DEPLOYED STRUCTURE OF WHICH THE MAIN PART IS OF LEATHER AND STRUCTURE OBTAINED ACCORDING TO THIS PROCESS |
EP87401641A EP0298180B1 (en) | 1987-07-10 | 1987-07-10 | Process for making an open structure with leather as the main part, and structure thus made |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2595375A1 true FR2595375A1 (en) | 1987-09-11 |
FR2595375B1 FR2595375B1 (en) | 1988-07-08 |
Family
ID=26111850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8603186A Expired FR2595375B1 (en) | 1986-03-06 | 1986-03-06 | METHOD FOR MANUFACTURING A DEPLOYED STRUCTURE OF WHICH THE MAIN PART IS OF LEATHER AND STRUCTURE OBTAINED ACCORDING TO THIS PROCESS |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2595375B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2622896A2 (en) * | 1986-03-06 | 1989-05-12 | Lesourd Hugues | Process for the manufacture of an expanded structure the main part of which is made of leather and structure obtained by this process |
WO2004007327A1 (en) * | 2002-07-16 | 2004-01-22 | Saint-Gobain Isover Austria Ag | Method and device for rolling up elastically compressible plates |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107537141A (en) * | 2017-08-29 | 2018-01-05 | 颍上县金晨阳工贸有限公司 | A kind of basketball leather, which is cut, presses even all-in-one |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE531033A (en) * | ||||
FR2004766A1 (en) * | 1968-03-26 | 1969-11-28 | Brevetex Sa | |
DE1660088A1 (en) * | 1968-03-14 | 1971-09-02 | Kalle Ag | Natural leather composite |
DE1785235A1 (en) * | 1968-08-30 | 1972-01-13 | Norwood Ind Inc | Laminate made of leather and a polyurethane film |
-
1986
- 1986-03-06 FR FR8603186A patent/FR2595375B1/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE531033A (en) * | ||||
DE1660088A1 (en) * | 1968-03-14 | 1971-09-02 | Kalle Ag | Natural leather composite |
FR2004766A1 (en) * | 1968-03-26 | 1969-11-28 | Brevetex Sa | |
DE1785235A1 (en) * | 1968-08-30 | 1972-01-13 | Norwood Ind Inc | Laminate made of leather and a polyurethane film |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2622896A2 (en) * | 1986-03-06 | 1989-05-12 | Lesourd Hugues | Process for the manufacture of an expanded structure the main part of which is made of leather and structure obtained by this process |
WO2004007327A1 (en) * | 2002-07-16 | 2004-01-22 | Saint-Gobain Isover Austria Ag | Method and device for rolling up elastically compressible plates |
Also Published As
Publication number | Publication date |
---|---|
FR2595375B1 (en) | 1988-07-08 |
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