C14C9/02

ELECTROCOMPACTED AND ELECTROSPUN LEATHER AND METHODS OF FABRICATION

Biofabricated leathers made by electrocompaction and/or electrospsinning. Described herein are biofabricated leather materials derived from electrospun or electrocompacted collagen networks. These electrospun or electrocompacted leathers may have leather-like properties following and are may be processed as native leather and used to form leather goods.

ELECTROCOMPACTED AND ELECTROSPUN LEATHER AND METHODS OF FABRICATION

Biofabricated leathers made by electrocompaction and/or electrospsinning. Described herein are biofabricated leather materials derived from electrospun or electrocompacted collagen networks. These electrospun or electrocompacted leathers may have leather-like properties following and are may be processed as native leather and used to form leather goods.

Leather Production Using Waste Liquids
20170233833 · 2017-08-17 ·

A process for leather production from a raw animal hide includes the steps of pre-soaking, soaking, unhairing and liming, re-liming, deliming and bating, pickling and tanning, degreasing, re-tanning, neutralizing, dyeing and fatliquoring, and washing the processed hide. Waste liquid is collected from at least one of the foregoing steps is recycled to at least one of the foregoing steps. The collected waste liquid can be recycled to the same step, to a different step, or to two of more steps in the process.

Leather Production Using Waste Liquids
20170233833 · 2017-08-17 ·

A process for leather production from a raw animal hide includes the steps of pre-soaking, soaking, unhairing and liming, re-liming, deliming and bating, pickling and tanning, degreasing, re-tanning, neutralizing, dyeing and fatliquoring, and washing the processed hide. Waste liquid is collected from at least one of the foregoing steps is recycled to at least one of the foregoing steps. The collected waste liquid can be recycled to the same step, to a different step, or to two of more steps in the process.

Lionfish leather and preparation thereof
11365457 · 2022-06-21 · ·

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.

Tanning agent-free leather making method
11739390 · 2023-08-29 · ·

A tanning agent-free leather making method is provided. A raw hide is subjected to controllable dehydration with a molecular sieve-polar organic solvent composite dehydration media to achieve a dehydrated hide, and then a tanning agent-free leather is prepared by increasing the surface roughness of the dehydrated hide and reducing the surface energy of the dehydrated hide. The present disclosure does not use any metal or non-metal tanning agent, which is eco-friendly. The present disclosure breaks the balance of water distribution between the raw hide and the polar organic solvent, which realizes a multi-medium self-driven directional controllable dehydration of the raw hide, effectively solving the problems during dehydration of the raw hide only using polar organic solvent. The molecular sieve-polar organic solvent dehydration system is easy to recover and can be recycled for the controllable dehydration of the raw hide multiple times. Therefore, a brand-new clean leather making technology is provided.

LEATHER ODOR REMOVAL COMPOSITION AND METHOD OF MANUFACTURING LEATHER WITH REDUCED ODOR USING THE SAME

Disclosed are a leather odor removal composition, a method of manufacturing leather with reduced odor using the same, and leather manufactured through the method. The method of reducing leather odor may include using a composition including a filler and a softening mixture.

LEATHER ODOR REMOVAL COMPOSITION AND METHOD OF MANUFACTURING LEATHER WITH REDUCED ODOR USING THE SAME

Disclosed are a leather odor removal composition, a method of manufacturing leather with reduced odor using the same, and leather manufactured through the method. The method of reducing leather odor may include using a composition including a filler and a softening mixture.

RETANNING AND FATLIQUORING COMPOSITIONS COMPRISING A HEMP OIL DERIVATIVE
20230287527 · 2023-09-14 · ·

The invention concerns the use of a hemp oil derivative in at least one step of the leather working process in the tanning industry, wherein said hemp oil derivative is selected from the group consisting of sulphated hemp oil, sulphited hemp oil, phosphated hemp oil and mixtures thereof. The invention also concerns a composition comprising: a hemp oil derivative selected from the group consisting of sulphated hemp oil, sulphited hemp oil, phosphated hemp oil and mixtures thereof, and—a phosphated (C.sub.8-C.sub.24) fatty alcohol having from 1 to 2 hydroxyl groups.

RETANNING AND FATLIQUORING COMPOSITIONS COMPRISING A HEMP OIL DERIVATIVE
20230287527 · 2023-09-14 · ·

The invention concerns the use of a hemp oil derivative in at least one step of the leather working process in the tanning industry, wherein said hemp oil derivative is selected from the group consisting of sulphated hemp oil, sulphited hemp oil, phosphated hemp oil and mixtures thereof. The invention also concerns a composition comprising: a hemp oil derivative selected from the group consisting of sulphated hemp oil, sulphited hemp oil, phosphated hemp oil and mixtures thereof, and—a phosphated (C.sub.8-C.sub.24) fatty alcohol having from 1 to 2 hydroxyl groups.