EP0384253A2 - Process for stretching and drying skins at the end of the painting treatment - Google Patents

Process for stretching and drying skins at the end of the painting treatment Download PDF

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Publication number
EP0384253A2
EP0384253A2 EP90102646A EP90102646A EP0384253A2 EP 0384253 A2 EP0384253 A2 EP 0384253A2 EP 90102646 A EP90102646 A EP 90102646A EP 90102646 A EP90102646 A EP 90102646A EP 0384253 A2 EP0384253 A2 EP 0384253A2
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EP
European Patent Office
Prior art keywords
skins
drums
pressing
drying
stretching
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.)
Ceased
Application number
EP90102646A
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German (de)
French (fr)
Other versions
EP0384253A3 (en
Inventor
Attilio Faedo
Ezio Faedo
Gianni Faedo
Luciano Faedo
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TECNOPELLI Srl
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TECNOPELLI Srl
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Publication date
Application filed by TECNOPELLI Srl filed Critical TECNOPELLI Srl
Publication of EP0384253A2 publication Critical patent/EP0384253A2/en
Publication of EP0384253A3 publication Critical patent/EP0384253A3/en
Ceased legal-status Critical Current

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    • 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
    • C14B1/30—Pressing or rolling leather
    • C14B1/34—Pressing or rolling leather by rotating movement of the pressing or rolling elements
    • 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
    • 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
    • C14B1/58—Drying

Definitions

  • the skins are extracted from the above barrels to be then subjected to the drawing and drying operations.
  • the skins are caused to pass into the space between at least two drums, in order to be pressed, which makes it possible to obtain the expulsion of a portion of the liquids with which said skins are still soaked.
  • One of the devices of known type for ensuring this operation comprises a machine which operates discontinuously and which comprises, upstream of the two above-mentioned drums, another drum with blades formed by a cylindrical element which will also be applied against the skins at the level of one of its generatrices and which has, on its side wall, a series of blades arranged in a helix and wound in opposite directions along two zones opposite with respect to the transverse plane of symmetry of said drum, which blades are able to effect an effective preliminary distension of the skin before it is subjected to pressing.
  • an application drum On the side of the blade drum is provided an application drum, the skins being caused to pass between these two drums.
  • a first pair of pressing drums Downstream of the blade drum is mounted a first pair of pressing drums, which also ensures the advancement of the skins. It should be noted here that the blade drum rotates in the opposite direction to that corresponding to the advance of the skins.
  • the machine is divided into two structures, one of which is movable relative to the other: on the first of these structures are mounted the blade drum and one of the pressing drums, while the other carries the drum application and the second pressing drum.
  • the skins are manually engaged in the machine when the two structures are spaced from each other; after having correctly in. sitioned the skin, the operator can then proceed to the pressing or spinning operation. On leaving the machine, the skins are removed manually to be stored properly on a mechanical stacker.
  • these skins are subjected to the drying phase, obtained by placing them on plates which are heated to around 70 ° C., preferably under vacuum in order to facilitate the drying process.
  • the skins are dried directly in the open air, but this solution involves immobilizing the articles for an extended period of time.
  • the fact that the two pressing drums are mounted on two structures which can be moved apart or brought closer depending on the working phases is such as to determine a very clear limitation of the pressure that the two drums can exert on the skin to be treated, and, in the final analysis, a limitation of the percentage of liquid which can be eliminated during this phase. It follows that most of the liquid must be removed during the second phase of the process; so that the latter does not have unacceptable durations, it is necessary to operate at the relatively high temperatures mentioned above, which inevitably implies a certain reduction in the quality of the skins.
  • the present invention proposes to implement a method of stretching and drying the skins at their exit from the dyeing operation which is free from the drawbacks mentioned above.
  • the pressing phase is carried out using a device operating continuously and comprising means for the continuous supply of the skins between the two pressing drums; around the drum or drums provided at at least one of the faces of the skin to be pressed is mounted a movable mat which constitutes the element which will effectively bring the skins into contact, it being noted that another mat can be mounted around the rollers provided on the oppo side the skin to be pressed.
  • Such a structure is capable of giving surprising results as regards the quantity of liquid which can be wrung during the phase in which the said structure is involved, the said quantity possibly reaching up to 70%.
  • the presence of the carpets is likely to increase the surface which performs the pressing, which surface in the case of the device implementing the usual process is very small since it extends only at the level of the zone. of contact between the skins and the pressing drums.
  • the device according to the invention comprising at least one drum with prior stretching blades of the type described above, and also taking into account the greater pressure that the pressing drums can exert on the skins, the latter tend to increase their surface considerably, which constitutes a notable advantage for producers of skins since, as is known, skins are usually sold by unit of surface and not by unit of weight.
  • the skin 1 is brought to the pressing means using a movable belt 2 actuated by a cylinder 3 and wound around a return cylinder 4.
  • two pairs of pressing drums 5 and 6 are provided, arranged one after the other.
  • the drums which are provided on either side of the opposite faces of the skin rotate in opposite directions so as to ensure the correct advancement of said skin.
  • the invention can provide both a single pair of drums and a number of pairs greater than two.
  • the drums are not directly brought into contact with the skins, but on the contrary between said drums and the skins is interposed a mat 7 preferably made of felt and whose movement is ensured by the aforementioned drums, also wrapping around return cylinders 8.
  • a blade drum 10 Upstream of the first pair of drums 5 is provided a blade drum 10 which rotates in a proper direction to tend to oppose the skins to be pressed in advance, all in known manner.
  • the present invention may also, for feeding the skins, provide means which differ from the conveyor belt 2 above illustrated and described.
  • this conveyor belt 2 is driven with an advance speed lower than the linear speed of the pressing drums, so that when the skin is gripped by said drums at one of its edges, it is stretched as a result of the combined and antagonistic actions of the pressing drums and the blade drum.

Abstract

A stretching and drying system for skins after they have been dyed consists of a rotary vaned drum which acts on the skins to stretch them, and at least one pair of drums between which the skins are squeezed to dry them. The pairs of pressing drums have a band of a flexible material, e.g. felt, passing round them. The flexible material is on the same level as the skins as they pass under the vaned stretching drum on an input conveyor which travels more slowly than the bands. The drying of the skins is completed in a vacuum, with the skins placed on plates heated to 50-60 deg C.

Description

Après qu'elles aient été soumises à la teinture dans des tonneaux qui sont entraînés en rotation suivant leur axe longitudinal orienté à l'ho­rizontale, les peaux sont extraites des tonneaux précités pour être en­suite soumises aux opérations d'étirage et de séchage.After they have been subjected to dyeing in barrels which are rotated along their longitudinal axis oriented horizontally, the skins are extracted from the above barrels to be then subjected to the drawing and drying operations.

En premier lieu les peaux sont amenées à passer dans l'espace compris entre au moins deux tambours, afin d'être pressées, ce qui permet d'obtenir l'expulsion d'une partie des liquides dont lesdites peaux sont encore imbibées.First of all, the skins are caused to pass into the space between at least two drums, in order to be pressed, which makes it possible to obtain the expulsion of a portion of the liquids with which said skins are still soaked.

L'un des dispositifs de type connu pour assurer cette opération comprend une machine qui fonctionne de manière discontinue et qui comporte, en amont des deux tambours sus-indiqués, un autre tambour à lames formé par un élément cylindrique qui va lui aussi s'appliquer contre les peaux au niveau de l'une de ses génératrices et qui présente, sur sa paroi laté­rale, une série de lames disposées en hélice et enroulées en sens inver­ses le long de deux zones opposées par rapport au plan transversal de symétrie dudit tambour, lesquelles lames sont en mesure d'opérer une distension préalable efficace de la peau avant que celle-ci soit soumise au pressage.One of the devices of known type for ensuring this operation comprises a machine which operates discontinuously and which comprises, upstream of the two above-mentioned drums, another drum with blades formed by a cylindrical element which will also be applied against the skins at the level of one of its generatrices and which has, on its side wall, a series of blades arranged in a helix and wound in opposite directions along two zones opposite with respect to the transverse plane of symmetry of said drum, which blades are able to effect an effective preliminary distension of the skin before it is subjected to pressing.

Sur le côté du tambour à lames est prévu un tambour d'application, les peaux étant amenées à passer entre ces deux tambours.On the side of the blade drum is provided an application drum, the skins being caused to pass between these two drums.

En aval du tambour à lames est montée une première paire de tambours de pressage, laquelle assure également l'avance des peaux. Il convient ici de noter que le tambour à lames tourne en sens inverse de celui correspondant à l'avance des peaux.Downstream of the blade drum is mounted a first pair of pressing drums, which also ensures the advancement of the skins. It should be noted here that the blade drum rotates in the opposite direction to that corresponding to the advance of the skins.

La machine est divisée en deux structures dont l'une est mobile par rapport à l'autre : sur la première de ces structures sont montés le tambour à lames et l'un des tambours de pressage, tandis que l'autre porte le tambour d'application et le second tambour de pressage.The machine is divided into two structures, one of which is movable relative to the other: on the first of these structures are mounted the blade drum and one of the pressing drums, while the other carries the drum application and the second pressing drum.

Les peaux sont engagées manuellement dans la machine lorsque les deux structures sont écartées l'une de l'autre ; après avoir correctement po­ sitionné la peau, l'opérateur peut alors procéder à l'opération de pres­sage ou essorage. A la sortie de la machine, les peaux sont prélevées manuellement pour être rangées convenablement sur un empileur mécanique.The skins are manually engaged in the machine when the two structures are spaced from each other; after having correctly in. sitioned the skin, the operator can then proceed to the pressing or spinning operation. On leaving the machine, the skins are removed manually to be stored properly on a mechanical stacker.

Ensuite, ces peaux sont soumises à la phase de séchage, obtenue en les disposant sur des plaques qui sont chauffées à environ 70°C, préférable­ment sous vide afin de faciliter le processus de séchage. Il arrive parfois que les peaux soient directement séchées à l'air libre, mais cette solution implique l'immobilisation des articles pendant un laps de temps prolongé.Then, these skins are subjected to the drying phase, obtained by placing them on plates which are heated to around 70 ° C., preferably under vacuum in order to facilitate the drying process. Sometimes the skins are dried directly in the open air, but this solution involves immobilizing the articles for an extended period of time.

Le procédé ci-dessus indiqué comporte des temps morts considérables, qui sont dûs au fonctionnement intermittent du dispositif de pressage et qui se répercutent sur la productivité de l'ensemble du processus.The above-mentioned process involves considerable downtime, which is due to the intermittent operation of the pressing device and which affects the productivity of the whole process.

En outre le fait que les deux tambours de pressage soient montés sur deux structures qui peuvent être écartées ou rapprochées suivant les phases de travail est de nature à déterminer une limitation bien nette de la pression que les deux tambours peuvent exercer sur la peau à trai­ter, et, en dernière analyse, une limitation du pourcentage de liquide qui peut être éliminé au cours de cette phase. Il s'ensuit que la plus grande partie du liquide doit être éliminée au cours de la seconde phase du processus ; afin que cette dernière ne comporte pas des durées inac­ceptables, il est nécessaire d'opérer aux températures relativement éle­vées sus-mentionnées, ce qui implique inévitablement une certaine dimi­nution de la qualité des peaux.Furthermore, the fact that the two pressing drums are mounted on two structures which can be moved apart or brought closer depending on the working phases is such as to determine a very clear limitation of the pressure that the two drums can exert on the skin to be treated, and, in the final analysis, a limitation of the percentage of liquid which can be eliminated during this phase. It follows that most of the liquid must be removed during the second phase of the process; so that the latter does not have unacceptable durations, it is necessary to operate at the relatively high temperatures mentioned above, which inevitably implies a certain reduction in the quality of the skins.

La présente invention se propose de mettre en oeuvre un procédé d'étira­ge et de séchage des peaux à leur sortie de l'opération de teinture qui soit exempt des inconvénients rappelés ci-dessus.The present invention proposes to implement a method of stretching and drying the skins at their exit from the dyeing operation which is free from the drawbacks mentioned above.

Le procédé suivant l'invention est défini à la revendication 1. En fait, suivant l'invention la phase de pressage est réalisée à l'aide d'un dispositif fonctionnant en continu et comprenant des moyens pour l'ad­duction continue des peaux entre les deux tambours de pressage ; autour du ou des tambours prévus au niveau d'au moins l'une des faces de la peau à presser est monté un tapis mobile qui constitue l'élément qui va effectivement assurer la mise en contact des peaux, étant noté qu'un autre tapis peut être monté autour des rouleaux prévus sur la face oppo­ sée de la peau à presser.The process according to the invention is defined in claim 1. In fact, according to the invention the pressing phase is carried out using a device operating continuously and comprising means for the continuous supply of the skins between the two pressing drums; around the drum or drums provided at at least one of the faces of the skin to be pressed is mounted a movable mat which constitutes the element which will effectively bring the skins into contact, it being noted that another mat can be mounted around the rollers provided on the oppo side the skin to be pressed.

Une telle structure est propre à donner des résultats surprenants en ce qui concerne la quantité de liquide qui peut être essorée durant la pha­se dans laquelle ladite structure est impliquée, ladite quantité pouvant atteindre jusqu'à 70%.Such a structure is capable of giving surprising results as regards the quantity of liquid which can be wrung during the phase in which the said structure is involved, the said quantity possibly reaching up to 70%.

Un tel résultat ne peut être obtenu que par suite du plus grand effort que peut exercer une structure dans laquelle les tambours de pressage restent toujours à un écartement pré-établi.Such a result can only be obtained as a result of the greater effort that a structure can exert in which the pressing drums always remain at a pre-established spacing.

De plus la présence des tapis, préférablement réalisés en feutre, est de nature à augmenter la surface qui effectue le pressage, surface qui dans le cas du dispositif mettant en oeuvre le procédé usuel est très réduite puisque s'étendant uniquement au niveau de la zone de contact entre les peaux et les tambours de pressage.In addition, the presence of the carpets, preferably made of felt, is likely to increase the surface which performs the pressing, which surface in the case of the device implementing the usual process is very small since it extends only at the level of the zone. of contact between the skins and the pressing drums.

Cet avantage se répercute dans le fait qu'étant moins humides, les peaux, à leur sortie du dispositif suivant l'invention, peuvent être étirées de manière plus aisée sur les bancs de séchage ; en outre cette dernière phase présente maintenant une durée beaucoup plus réduite et peut être conduite avec des plaques dont la température est moins éle­vée, par exemple de l'ordre de 50 à 60°C, ce qui améliore évidemment la qualité du produit fini.This advantage is reflected in the fact that, being less humid, the skins, on leaving the device according to the invention, can be stretched more easily on the drying benches; furthermore, this last phase now has a much shorter duration and can be carried out with plates whose temperature is lower, for example of the order of 50 to 60 ° C., which obviously improves the quality of the finished product.

Il convient encore de rappeler que les vapeurs émises par les peaux lors de leur chauffage contiennent toujours des substances nocives, de sorte que le fait de réduire la température améliore évidemment les conditions de l'ambiance de travail des opérateurs.It should also be remembered that the vapors emitted by the skins when heated always contain harmful substances, so that reducing the temperature obviously improves the conditions of the working environment of the operators.

Un autre avantage réside dans le fait que le dispositif suivant l'inven­tion comportant au moins un tambour à lames d'étirage préalable du type sus-décrit, et compte tenu en outre de la plus grande pression que les tambours de pressage peuvent exercer sur les peaux, ces dernières ten­dent à augmenter leur surface de manière considérable, ce qui constitue un avantage notable pour les producteurs de peaux puisque que, comme on le sait, les peaux sont habituellement vendues par unité de surface et non par unité de poids.Another advantage lies in the fact that the device according to the invention comprising at least one drum with prior stretching blades of the type described above, and also taking into account the greater pressure that the pressing drums can exert on the skins, the latter tend to increase their surface considerably, which constitutes a notable advantage for producers of skins since, as is known, skins are usually sold by unit of surface and not by unit of weight.

Les caractéristiques qui précèdent, ainsi que d'autres prévues par l'in­vention, vont maintenant être décrites en détail à l'aide d'une forme particulière de réalisation, en se référant au dessin annexé dans lequel :

  • La figure unique est une vue schématique de côté du dispositif propre à assurer la phase de pressage des peaux, suivant la forme de réalisation envisagée de l'invention.
The foregoing characteristics, as well as others provided for by the invention, will now be described in detail with the aid of a particular embodiment, with reference to the appended drawing in which:
  • The single figure is a schematic side view of the device capable of ensuring the pressing phase of the skins, according to the envisaged embodiment of the invention.

Sur cette figure, on voit que la peau 1 est amenée aux moyens de pres­sage à l'aide d'un tapis mobile 2 actionné par un cylindre 3 et enroulé autour d'un cylindre de renvoi 4.In this figure, it can be seen that the skin 1 is brought to the pressing means using a movable belt 2 actuated by a cylinder 3 and wound around a return cylinder 4.

Dans cette forme particulière de réalisation de l'invention sont prévues deux paires de tambours de pressage 5 et 6, disposées l'une à la suite de l'autre. Bien évidemment les tambours qui sont prévus de part et d'autre des faces opposées de la peau tournent en sens inverses de façon à assurer l'avancement correct de ladite peau.In this particular embodiment of the invention, two pairs of pressing drums 5 and 6 are provided, arranged one after the other. Obviously the drums which are provided on either side of the opposite faces of the skin rotate in opposite directions so as to ensure the correct advancement of said skin.

On observera que l'invention peut prévoir aussi bien une seule paire de tambours qu'un nombre de paires supérieur à deux.It will be observed that the invention can provide both a single pair of drums and a number of pairs greater than two.

Les tambours ne sont pas directement mis en contact avec les peaux, mais au contraire entre lesdits tambours et les peaux est interposé un tapis 7 préférablement réalisé en feutre et dont la mise en mouvement est as­surée par les tambours précités, en s'enroulant également autour de cy­lindres de renvoi 8.The drums are not directly brought into contact with the skins, but on the contrary between said drums and the skins is interposed a mat 7 preferably made of felt and whose movement is ensured by the aforementioned drums, also wrapping around return cylinders 8.

En amont de la première paire de tambours 5 est prévu un tambour à lames 10 qui tourne suivant un sens propre à tendre à s'opposer à l'avance des peaux à presser, le tout à la façon en soi connue.Upstream of the first pair of drums 5 is provided a blade drum 10 which rotates in a proper direction to tend to oppose the skins to be pressed in advance, all in known manner.

La présente invention pourra également, pour l'alimentation des peaux prévoir des moyens qui diffèrent du tapis transporteur 2 ci-dessus il­lustré et décrit.The present invention may also, for feeding the skins, provide means which differ from the conveyor belt 2 above illustrated and described.

De manière avantageuse ce tapis transporteur 2 est animé d'une vitesse d'avance inférieure à la vitesse linéaire des tambours de pressage, de sorte que lorsque la peau est saisie par lesdits tambours au niveau de l'un de ses bords, elle est étirée par suite des actions combinées et antagonistes des tambours de pressage et du tambour à lames.Advantageously, this conveyor belt 2 is driven with an advance speed lower than the linear speed of the pressing drums, so that when the skin is gripped by said drums at one of its edges, it is stretched as a result of the combined and antagonistic actions of the pressing drums and the blade drum.

Claims (6)

1. Procédé pour l'étirage et le séchage des peaux à la sortie de l'opé­ration de teinture, comprenant une phase dans laquelle les peaux, ex­traites des tonneaux de teinture, sont amenées à un dispositif compre­nant au moins un tambour à lames qui agit sur elles en vue de leur éti­rage, ainsi qu'au moins une paire de tambours entre lesquels lesdites peaux doivent passer pour être comprimées dans le but d'être essorées, ledit procédé comprenant également une phase dans laquelle les peaux sont séchées, caractérisé en ce qu'il utilise un dispositif de pressage opérant de manière continue, avec des moyens pour amener en continu les peaux entre les paires de tambours de presage (5, 6), un tapis mobile (7) étant prévu autour des tambours au niveau de l'une au moins des fa­ces des peaux en vue d'assurer la mise en contact des peaux à presser (1) avec la face dudit tapis opposée à celle qui est tournée en direc­tion des tambours.1. Method for drawing and drying the skins at the end of the dyeing operation, comprising a phase in which the skins, extracted from the dye barrels, are brought to a device comprising at least one drum with blades which acts on them for stretching, as well as at least one pair of drums between which said skins must pass in order to be compressed in order to be wrung, said method also comprising a phase in which the skins are dried, characterized in that that it uses a pressing device operating continuously, with means for continuously bringing the skins between the pairs of pressing drums (5, 6), a movable belt (7) being provided around the drums at the level of the at least one of the faces of the skins in order to ensure the contact of the skins to be pressed (1) with the face of said mat opposite to that which is turned in the direction of the drums. 2. Procédé de pressage suivant la revendication 1, caractérisé en ce qu'autour des tambours (5 et 6) prévus au niveau des deux faces de la peau sont montés deux tapis mobiles (7).2. Pressing method according to claim 1, characterized in that around the drums (5 and 6) provided at the two faces of the skin are mounted two movable belts (7). 3. Procédé suivant les revendications 1 ou 2, caractérisé en ce qu'on utilise un tapis transporteur (2) comme moyen pour l'alimentation en peaux du dispositif de pressage.3. Method according to claims 1 or 2, characterized in that a conveyor belt (2) is used as means for supplying skins to the pressing device. 4. Procédé suivant la revendication 3, caractérisé en ce que la vitesse du tapis transporteur (2) est inférieure à la vitesse linéaire des pre­miers tambours (5, 6) qui agissent sur les peaux à presser.4. Method according to claim 3, characterized in that the speed of the conveyor belt (2) is lower than the linear speed of the first drums (5, 6) which act on the skins to be pressed. 5. Procédé suivant les revendications 1 ou 2, caractérisé en ce que les tapis mobiles (7) sont réalisés en feutre.5. Method according to claims 1 or 2, characterized in that the moving belts (7) are made of felt. 6. Procédé suivant une ou plusieurs des revendications qui précèdent, caractérisé en ce que le séchage est réalisé sous vide en disposant les peaux sur des plaques chauffées à une température de l'ordre de 50 à 60°C.6. Method according to one or more of the preceding claims, characterized in that the drying is carried out under vacuum by placing the skins on plates heated to a temperature of the order of 50 to 60 ° C.
EP19900102646 1989-02-22 1990-02-10 Process for stretching and drying skins at the end of the painting treatment Ceased EP0384253A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8553289 1989-02-22
IT8985532A IT1233811B (en) 1989-02-22 1989-02-22 STAINING AND DRYING PROCESS OF ALREADY DYED LEATHER

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EP0384253A2 true EP0384253A2 (en) 1990-08-29
EP0384253A3 EP0384253A3 (en) 1991-09-11

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996015275A2 (en) * 1994-11-15 1996-05-23 Officine Di Cartigliano S.P.A. Semiautomatic feeder line particularly for setting-out/drying machines, vacuum-driers, and stakers for industrial hides
ITVE20090048A1 (en) * 2009-09-14 2011-03-15 Dal Lago S R L LAYERING DEVICE FOR TANNER SKIN SYSTEMS.
CN105177189A (en) * 2015-08-17 2015-12-23 苏州瑞日纺织科技有限公司 Shoe leather fold removing mechanism
ITUB20160895A1 (en) * 2016-02-19 2017-08-19 Bauce Tri Ma S R L MACHINE FOR THE TREATMENT OF SKINS PROVIDED WITH A FINISHING DEVICE
CN110499398A (en) * 2019-09-06 2019-11-26 福州市马尾区浩莉服饰有限公司 A kind of leveling of leather is tinted device
IT201800006118A1 (en) * 2018-06-07 2019-12-07 PERFECTED MACHINE FOR TREATMENT OF TANNED LEATHER
CN110714101A (en) * 2019-09-26 2020-01-21 辽宁富新新材料有限公司 Drying process of chrome-free tanned leather blank

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FR2243258A1 (en) * 1973-09-07 1975-04-04 Strojosvit Np Pressing and dewatering leather, esp. cattle hide halves - with endless compression felts and slower moving cord conveyor
EP0079607A1 (en) * 1981-11-14 1983-05-25 Kela Spezialmaschinen GmbH Continuous press, in particular a samming machine for manufacturing and processing leather
WO1986007389A1 (en) * 1985-06-12 1986-12-18 Jiri Dokoupil Method and device for conditioning leathers, hides, furs and the like
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996015275A2 (en) * 1994-11-15 1996-05-23 Officine Di Cartigliano S.P.A. Semiautomatic feeder line particularly for setting-out/drying machines, vacuum-driers, and stakers for industrial hides
WO1996015275A3 (en) * 1994-11-15 1996-06-27 Cartigliano Off Spa Semiautomatic feeder line particularly for setting-out/drying machines, vacuum-driers, and stakers for industrial hides
AU698741B2 (en) * 1994-11-15 1998-11-05 Officine Di Cartigliano S.P.A. Semiautomatic feeder line particularly for setting-out/drying machines, vacuum-driers, and stakers for industrial hides
ITVE20090048A1 (en) * 2009-09-14 2011-03-15 Dal Lago S R L LAYERING DEVICE FOR TANNER SKIN SYSTEMS.
CN105177189A (en) * 2015-08-17 2015-12-23 苏州瑞日纺织科技有限公司 Shoe leather fold removing mechanism
CN105177189B (en) * 2015-08-17 2017-09-19 苏州瑞日纺织科技有限公司 A kind of shoe leather de-shirred mechanism
ITUB20160895A1 (en) * 2016-02-19 2017-08-19 Bauce Tri Ma S R L MACHINE FOR THE TREATMENT OF SKINS PROVIDED WITH A FINISHING DEVICE
IT201800006118A1 (en) * 2018-06-07 2019-12-07 PERFECTED MACHINE FOR TREATMENT OF TANNED LEATHER
CN110499398A (en) * 2019-09-06 2019-11-26 福州市马尾区浩莉服饰有限公司 A kind of leveling of leather is tinted device
CN110714101A (en) * 2019-09-26 2020-01-21 辽宁富新新材料有限公司 Drying process of chrome-free tanned leather blank

Also Published As

Publication number Publication date
IT8985532A0 (en) 1989-02-22
IT1233811B (en) 1992-04-17
EP0384253A3 (en) 1991-09-11

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