Abstract:
The invention relates to a method and the production of natural leathers from pieces of natural leather torn into different-sized fibers which are sorted and placed, once they have been mixed with a binder, in successive layers (6, 7 and 8) on a support sheet (9) provided with filaments crossing the different layers. The support sheet (9) and filaments (10) are extracted once the binder substance has cured.
Abstract:
Provided are leather fibers for yarn. The leather fibers forming the yarn are obtained from cowhide. An amount of the leather fibers having an H value of 30 or more is 30% by weight or more of a total leather fibers contained in the yarn. The H value is defined by the following Equation 2: [Equation 2] H=L/D where L: leather fiber length, and D: leather fiber thickness. A thickness index (M) of the leather fibers satisfies Equation 1: [Equation 1] M=D1/D2≤60 where D1: an average thickness of 0 fibers having a highest thickness in 1 mg of leather fibers, and D2: an average thickness of 10 fibers having a lowest thickness in 1 mg of leather fibers.
Abstract:
A process for manufacturing regenerated leather characterized by preparing a short-fiber and a long-fiber leather pulps from wasted natural leather; sending the two kinds of pulps separately to a refrigerator for freezing and then drying in a vacuum dryer; thus forming two sheets of cake-like leather by combining the two sheets to one and dipping with proper bonding agent, the long-fiber leather sheet is fluffed by a fluff-forming machine thus to form a regenerated natural leather.
Abstract:
Leather fibers for yarn are provided. The leather fibers used to manufacture the yarn are obtained from cowhide. The leather fibers obtained through leather selection and separation techniques may improve the physical properties of the yarn.
Abstract:
Systems and methods for preparing fish leather, which may comprise lionfish leather, are described. A method of making lionfish leather may comprise cutting, using one or more guidelines, at least a portion of a lionfish body, wherein the guidelines are configured to facilitate removal of skin from of the lionfish body; removing, using the one or more guidelines, the skin from the lionfish body, wherein the removed skin defines a cut skin pattern based on at least the guidelines; and subjecting the removed skin to at least a tanning process to provide a lionfish leather.
Abstract:
The invention relates to a method and the production of natural leathers from pieces of natural leather torn into different-sized fibers which are sorted and placed, once they have been mixed with a binder, in successive layers (6, 7 and 8) on a support sheet (9) provided with filaments crossing the different layers. The support sheet (9) and filaments (10) are extracted once the binder substance has cured.
Abstract:
Disclosed is a control method for synchronized fabric circulation in a conveyer drive fabric dyeing machine. During a dyeing process of fabric, the fabric is driven by a fabric guide to move in a circulating manner and the time period for a cycle of circulation is set in consistency with the time period that a conveyor moving from a rear end to a front end so as to achieve synchronization that makes the circulation smooth. The control method is performed with a computer or a PLC control unit that is supplied with fabric length data or fabric weight data and fabric unit weight data and, based on such data, performs an automatic operation of computation and supply of a signal to speed controllers of the fabric guide motor and the conveyor motor to set the speeds thereof at a predetermined ratio with respect to each other for synchronized operations.
Abstract:
A method is disclosed for setting the interscalar integument of a reptile shed for incorporation into a laminar composite. The method includes saturating the reptile shed in a saturating liquid, positioning the saturated reptile shed on a lower platen of a press, lowering an upper platen of the press to contact the saturated reptile shed, flash drying the saturated reptile shed by simultaneously applying heat and pressure using the upper and lower platens for a fixed period of time.
Abstract:
A full-grained milled napa leather is provided on its grain side with a dressing formed from a solidified plastics dispersion. Required leather properties are still ensured and the production process is substantially simplified and more economical. First, the leather, such as cowhide, is subjected on a mechanically untreated grain side to a milling process for at least two hours. This results in a typical napa structure with a natural pebbled grain. Then, a polyurethane dispersion is applied to the grain side containing pigment particles and optionally further additives. Then the hide is allowed to dry. The solidified dispersion forming the dressing has a thickness of, preferably, from 0.05 mm to 0.07 mm.