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WO/2016/021461A1 |
[Problem] The purpose of the present invention is to provide a hexavalent chromium treatment agent capable of residing over an extended period of time in leather or a leather article and with which it is possible to stabilize and render ...
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WO/2016/009387A1 |
The present invention refers to the use as tanning agents for animal pelts of known furan derivatives, which are not toxic and biodegradable, and to a tanning process economically sustainable and comprising a phase of treatment of the pe...
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WO/2016/006007A1 |
The object of this invention is an apparatus (1) for detecting defects in at least one portion of leather, and for cutting the portion, that permits to perform faster and more efficiently than with currently known systems the operations ...
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WO/2015/193017A1 |
The invention relates to a method for producing breathable leather material (10) comprising the following steps: a leather-based material (5) is provided; the leather-based material (5) is perforated; a support body (1) is provided; a fi...
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WO/2015/189084A1 |
The invention relates to N-acylmorpholines as a solvent for use in methods for producing polymer dispersions.
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WO/2015/191326A1 |
A method of treating a substrate comprising contacting the substrate with a composition comprising i) a wax which provides a surface effect and ii) a polymer extender composition comprising a urethane based compound, a composition for tr...
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WO/2015/161998A1 |
Process for removing chromium from material containing collagen and chromium, preferably leather containing chromium, with use of an extractant, characterized in that the extractant is a compound of the formula I or a mixture of a plural...
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WO/2015/159070A1 |
The invention provides a process for tanning a substrate using at least one ionic liquid. The at least one ionic liquid can be used in at least one of the following tanning steps: tanning, re-tanning, preservation, liming, pickling, impr...
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WO/2015/159212A1 |
The invention relates to a method for treating, in particular for decorating, leather, which includes the steps of: i) applying a negative of a decoration to be reproduced to the surface of a piece of leather which has been tanned; and i...
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WO/2015/154830A1 |
A cutting device (1) for machines for cutting hides and the like, comprising an oscillating piston (2) provided at its end with a cutting blade (3), the oscillating piston (2) being actuated pneumatically by way of an inlet (6) and an ou...
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WO/2015/151045A1 |
A marking method for marking references (5) on a flat article (3), comprising steps of: predisposing, on a detecting plane (1), a model (2) provided with at least a through-opening (20), the model (2) exhibiting a same peripheral profile...
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WO/2015/144777A1 |
The present invention relates to an elongated pelt board for accommodating an animal pelt. The pelt board comprises a first wall element, a second wall element being spaced apart from the first wall element in the first radial direction,...
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WO/2015/144776A1 |
A system (1) is disclosed comprising a machine (2) for stretching pelts on pelt boards (3) and a device (2) for placing the pelt boards (3) in the machine (2) and/or for removing the pelt boards (3) from the machine (2) after stretching ...
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WO/2015/144774A1 |
The present invention relates to an elongated pelt board for accommodating an animal pelt. The pelt board comprises a first wall element, a second wall element being spaced apart from the first wall element in the first radial direction,...
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WO/2015/138227A1 |
Disclosed are methods for coating a substrate. These methods include: (a) preparing a two-component coating composition by mixing a first component and a second component to make a mixture thereof, and (b) depositing the mixture over the...
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WO/2015/127935A1 |
The invention relates to a method for tanning hides, comprising the following steps: softening the hides in liquid at a pH value in a range of approximately 7 to approximately 10, unhairing the hides in liquid at a pH value of up to 13, ...
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WO/2015/107148A1 |
The present invention relates to the synthesis of a polymeric fatliquor based on a glycol polymer + maleic anhydride previously reacted with a natural and/or synthetic fatty alcohol and/or a fatty ethoxylated alcohol and/or a fatty ethox...
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WO/2015/104716A1 |
The present disclosure provides a composition for water free, pickle free chrome tanning of hides/skins comprising of basic chrome sulphate, alkali metal salt of organic acid and polyhydric alcohol for chrome tanning of hides and/or skin...
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WO/2015/098032A1 |
A surface skin material having a porous heat insulation layer and a colored layer laminated, in order, on a leather base material. The porous heat insulation layer includes closed holes forming spheres having the upper side thereof squas...
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WO/2015/096557A1 |
The invention relates to the technical field of animal fur processing, and particularly relates to a cutting and double-face leather integrated dyeing process for tibet lamp skin, which comprises the following steps: cutting→washing wi...
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WO/2015/093146A1 |
The present invention provides split leather having irregular lines of real leather-like grain, and a method for producing the same. This split leather has: a fiber layer having crevices that have a width (W) of 1-10 μm, a length (L) of...
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WO/2015/090329A1 |
A scraping roller (1) is disclosed for scraping the flesh side of an animal pelt. The roller comprises a plurality of teeth (8) each having a scraping edge (4), the scraping roller comprising a core part (2) and an outer layer (3) in whi...
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WO/2015/081624A1 |
A tanning process is characterized in that waste liquid recycling is carried out in procedures of pre-soaking, main-soaking, liming, re-liming, deliming and softening, pickling and chrome tanning, retanning, neutralizing and dyeing step ...
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WO/2015/065035A1 |
The present invention can provide artificial leather comprising a polyalkylene carbonate resin composition which has an interpenetrating cross-linkage structure and contains: at least one compound selected from aliphatic polycarbonate, a...
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WO/2015/044765A1 |
The invention concerns a process for tanning hide to obtain leather. The general process for obtaining the intermediary wet blue stage comprises the following steps: a) a picking step with acid and salt, followed by b) a tanning step wit...
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WO/2015/044971A2 |
Process for tanning leathers with triazine derivatives comprising at least the steps of transforming a raw animal skin into a de-calcined leather, placing the de- calcined leather in a container with water at room temperature, rotating s...
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WO/2015/044766A1 |
The invention concerns a process for tanning hide to obtain leather. The general process for obtaining the intermediary wet blue stage comprises the following steps : a) a picking step with acid and salt, followed by b) a tanning step wi...
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WO/2015/036628A1 |
The invention relates to a method and the production of natural skins from pieces of natural skin torn up into different-sized fibres which are sorted and placed, once they have been mixed with a binder, in successive layers (6, 7 and 8)...
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WO/2015/033259A1 |
In a wet phase of the tanning process, the skins or hides are subjected to a treatment of so- called "rubberizing" in which in the treatment environment, whether it be the inside of a drum, a washing machine, a steady tub or other suitab...
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WO/2015/024788A1 |
An apparatus is disclosed for stretching a pelt (1) on a pelt board (2) comprising a pelt board holder (10) for holding one end part (4) of the pelt board (2), pelt holders (5) arranged to grip at least a part of the lower periphery of t...
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WO/2015/011272A1 |
The present invention is directed to a process for retanning leather comprising the steps of: a) providing tanned or pre-tanned leather b) treating the tanned leather of step a) with a composition comprising hollow microspheres, preferab...
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WO/2015/003866A1 |
A strip support and alignment device (1), particularly for strips to be cut in a cutting machine, the device comprising: – a sheet (3) that is stretched between a station (5) for feeding at least one strip and a station (7) for process...
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WO/2015/003919A2 |
An apparatus is disclosed for stretching a pelt (1) on a pelt board (2) comprising a pelt board holder (7) for holding one end part (6) of the pelt board, pelt holders (5) arranged to grip at least a part of the lower periphery of the pe...
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WO/2015/000791A1 |
An apparatus (1) is disclosed for processing the skin side of a tubular pelt (3) and comprising a tapering mandrel (1) for supporting the pelt (3) with its skin side turned outwards, a scraping device (5) comprising a first (7, 8) and a ...
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WO/2015/000790A1 |
An apparatus is disclosed for processing the skin side of a tubular pelt (3) and comprising a mandrel (1) for supporting the pelt (3) with its skin side turned outwards, a scraping device (5) comprising a first pair of primary scraping r...
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WO/2014/207383A1 |
The invention concerns a synergistic combination of three ingredients a), b) and c), ingredient or ingredients a) being chosen from the compounds resulting from the condensation of at least one fatty acid with an alkanolamine, ingredient...
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WO/2014/202203A1 |
A cutting table (10) with differentiated suction for the stabilisation of the material (14) to be cut, comprises a surface having a planar extension divided into a plurality of sectors (12) and surmounted by a permeable cover (18) on whi...
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WO/2014/201406A1 |
Engineered animal skin, hide, and leather comprising a plurality of layers of collagen formed by cultured collagen-producing cells. Layers may be formed by cultured collagen-producing cells that are grown to confluence to form a sheet of...
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WO/2014/191862A1 |
A skin or hide preservation process that is an essentially dry process for preserving animal skins or hides that involves the following steps, in order: A. determine a water content of primary skins to be processed; D. process primary sk...
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WO/2014/191910A1 |
Leathers, particularly tannery leathers, drying and/or conditioning method comprising the operations of establishing a prefixed standard expansion value of the leathers, loading at least one leather on at least one side face (4c, 4d) of ...
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WO/2014/187723A1 |
A pelt board (11) is disclosed for stretching and drying of tubular pelts (5), the pelt board (11) having a tip end (4) from which the pelt is drawn onto the pelt board (11) and a foot end (2), wherein the pelt board (11) has a lower par...
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WO/2014/184621A1 |
A vacuum drier (1 ) for drying industrial hides (P), comprises: a body having a bearing structure (2) a pair of end uprights (4), substantially vertical guide means, a lower base (6) and an upper cover (7), a plurality of tables (12) for...
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WO/2014/169564A1 |
A tannery waste liquid step-by-step recycling process having an improved effect, characterized by the step-by-step recycling of waste liquid in the processing steps of primary soaking, liming, reliming, deliming and softening, and pickli...
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WO/2014/162059A1 |
The present invention provides a system for tanning leather comprising from at least two tanning compositions to be used in sequence. First composition consists of zeolite having a Si to Al ratio from 0.7 to 2.5, treated with concentrate...
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WO/2014/162249A1 |
A method for cutting leathers for obtaining at least an article, comprising, in succession, steps of: positioning the leather (1) to be cut on a work plane (3); identifying on the leather (1) to be cut a profile (20) of at least an artic...
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WO/2014/128031A1 |
A process for producing aqueous polyurethane formulations, comprising the following steps: A) providing a solution of at least one polymeric polyurethane bearing ionizable groups in at least one solvent, B) partially neutralizing the at ...
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WO/2014/124951A1 |
A method for producing leather comprising a number of steps, characterized in that methanesulfonic acid is used in at least one step.
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WO/2014/122573A1 |
The present invention relates to a process for the treatment of a leather, imitation leather or fabric semimanufactured product. The process comprises the steps of: - providing the semimanufactured product to be treated; - preparing a tr...
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WO/2014/118037A1 |
The invention relates to a method for producing a thin grain split (4) and/or flesh split (6) split from a hide (1), the following steps being carried out: making the hide (1) available; splitting the hide into the grain split (4) and th...
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WO/2014/120765A1 |
A processing system for processing a leather hide includes a laser system configured for illuminating the leather hide with location information for placement of a die. A method of processing and a computer program product are also discl...
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