公开(公告)号：US20200262108A1

公开(公告)日：2020-08-20

申请号：US16645453

申请日：2017-09-08

Applicant: THE HONG KONG RESEARCH INSTITUTE OF TEXTILES AND APPAREL LIMITED

Inventor： Edwin Yee Man KEH ,  Lei YAO ,  Xiao LIAO ,  Yang LIU ,  Kevin CHEUK ,  Alex CHAN

IPC: B29B17/02 ,  C08J11/26

Abstract: A method for separating and recycling a waste polyester-cotton textile by a hydrothermal reaction catalyzed by an organic acid, comprising the following steps: dividing a waste polyester-cotton textile into fragments and dispersing in an aqueous solution system of the organic acid catalyst to obtain a mixed system; in a high-pressure reactor, heating the mixed system to 110˜180° C. so that cotton fibers in the waste polyester-cotton textile undergo a degradation reaction for 0.5˜3 h to obtain a mixture; and filtering the mixture by a sieve, washing to obtain a polyester fiber aggregate, and then filtering the remaining portion by a filtration membrane in vacuum so as to obtain cotton fiber fragments after washing. Embodiments of the present disclosure may provide advantages for the separation, recycling and reuse of waste polyester-cotton textiles. For example, the catalyst used during processing is derived from nature and is biodegradable.

公开(公告)号：US20220081539A1

公开(公告)日：2022-03-17

申请号：US17310861

申请日：2019-09-24

Applicant: The Hong Kong Research Institute of Textiles and Apparel Limited

Inventor： Edwin Yee Man KEH ,  Lei YAO ,  Alex CHAN ,  Mimi HETTI ,  Yang LIU ,  Hung CHAN ,  Xin CHEN ,  Wendy YU ,  Hosanna POON

IPC: C08L1/10 ,  C08J11/14 ,  C08L1/02 ,  C08B15/10

Abstract: The present disclosure provides methods of preparing cellulosic superabsorbent polymer (SAP) using cellulose powder.

公开(公告)号：US20200270807A1

公开(公告)日：2020-08-27

申请号：US16519036

申请日：2019-07-23

Applicant: The Hong Kong Research Institute of Textiles and Apparel Limited

Inventor： Edwin Yee Man KEH ,  Lei YAO ,  Alex CHAN ,  Mimi HETTI ,  Yang LIU ,  Hung CHAN ,  Wendy YU

IPC: D06P5/13 ,  B01J20/20 ,  B01J20/26 ,  B01J20/06 ,  B01J20/28 ,  B01J20/32

Abstract: Provided herein is a method for decolorizing textile materials under hydrothermal conditions using dye adsorbent materials. The process is non-toxic and environmentally friendly, and the adsorbent materials can be repeatedly used. The textile materials are textile materials dyeable with disperse dyes. Further provided is a system for decolorizing textile materials. The decolorization system is designed to allow the adsorbent materials to react with the textile materials in a contact manner and a non-contact manner.