US 12,247,260 B2
Sustainable scrap leather reusing and process thereof
Omer Suat Mamat, Chennai (IN)
Assigned to K H EXPORTS INDIA PRIVATE LIMITED, Chennai (IN)
Appl. No. 18/246,750
Filed by K H EXPORTS INDIA PRIVATE LIMITED, Chennai (IN)
PCT Filed Jul. 20, 2022, PCT No. PCT/IN2022/050653
§ 371(c)(1), (2) Date Mar. 27, 2023,
PCT Pub. No. WO2023/166516, PCT Pub. Date Sep. 7, 2023.
Claims priority of application No. 202241011402 (IN), filed on Mar. 3, 2022.
Prior Publication US 2024/0301522 A1, Sep. 12, 2024
Int. Cl. C14B 7/04 (2006.01)
CPC C14B 7/04 (2013.01) 4 Claims
OG exemplary drawing
 
1. A process of converting a waste leather scrap into a leather sheet using biodegradable water-based glue, comprising:
collecting of leather scraps;
cutting the collected leather scraps into small pieces;
mixing a glue with the small pieces of leather scrap;
spreading a metal frame,
forming a leather scrap cake by compressing the spread leather scrap using a hydraulic compressor;
drying the leather scrap cake for a period of 1 to 2 hours in a heat chamber at a temperature of 45-60 degrees Celsius;
compressing the dried leather scrap cake in the hydraulic compressor at a temperature of 40 degrees Celsius;
drying the leather scrap cake for a period of 4 to 5 hours at room temperature;
splitting the leather scrap cake into a predetermined thickness;
applying a reinforcement backing to the split leather scrap cake to form a leather sheet; and
drying the leather sheet for a period of 2 to 3 hours,
wherein the glue is a bio-degradable water-based chemical glue.