The Hong Kong Research Institute of Textiles and Apparel Limited

Nano and Advanced Materials Institute Limited

Lei Yao

Edwin Yee Man Keh

Alex Chan

Un Teng Lam

Yang Liu

Xiao Liao

Mimi Hetti

Siyu Lin

Wendy Yu

Xin Chen

Hung Sirius Chan

Hanrong Zhang

Xinxin Huang

Hok Chung Chan

Ho Man Chan

Lap Hung Chan

Lee Ying Yu

Yeung Yu Hui

Colin Xin Chen

Derek Lai

Yue Kit Hui

Shi Gao

Yiu Sing Wong

Alex Hok Chung Chan

Yongli Wang

John Kin Ming Leung

Jason Lap Hung Chan

Wendy Lee Ying Yu

Kevin Cheuk

Hung Chan

Sai Lung Fung

Hosanna Poon

Collin Xin Chen

Kanji Kajiwara

Akihiro Suzuoka

Philip Yun Ngok Chan

A method and an integrated system for dyeing synthetic, natural, and blended textiles in the form of fabrics, yarns, and garments are provided. The integrated system includes a first pressurizing pump for pressurizing liquefied COto supercritical CO(Sc—CO); a second pressurizing pump for pressurizing COto liquefied COa liquefied COstorage vessel for storing the liquefied COand the separated liquefied COfrom the one or more cyclone separators; a heater for heating the Sc—CO; a dyestuff vessel for mixing a dyestuff and the Sc—COto obtain Sc—CO-mixed dyestuff; a dyeing vessel for dyeing the textile by circulating the Sc—COand the Sc—CO-mixed dyestuff between the dyeing vessel and the dyestuff vessel; and one or more cyclone separators for removing the dyestuff from the Sc—CO-mixed dyestuff to obtain separated liquefied CO.

Method and integrated system for non-aqueous solvent medium (NASM) dyeing of multiple forms of synthetic, natural and blended textiles

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

Cellulosic superabsorbent polymer from post-consumer textile waste

The present disclosure relates to methods for producing water repellent textile substrates and products thereof. The methods can be conducted without the use of perfluorocarbons.

Method for preparing water repellent textile substrates and products thereof

Provided herein is a method of separating spandex from textile blends using biosolvents. The recovered material is of high purity while the chemical structure and molecular weight remain substantially unaffected by the treatment.

Textile separation methods

The present disclosure relates to methods for producing functional regenerated cellulose composite fibers and products thereof. The methods can be conducted with the use of recycled and/or virgin cellulose powder.

Regenerated cellulose composite fiber and method of preparation thereof

A micro-environment controllable temperature and humidity system evaluates heat and humidity comfort level of textiles. The system includes a bed-shaped partitioned platform having one or more non-temperature and humidity-controllable sections and one or more temperature and humidity controllable sections. One or more temperature and humidity control machine is in communication with the one or more temperature and humidity control sections for supplying air with a pre-set temperature and humidity. A central controller electrically is connected to the one or more temperature and humidity control machines. The micro-environment controllable temperature and humidity system can perform partitioned control on the temperature and humidity in a micro-environment during sleep, and is used for studying the influence of the temperature and humidity on the comfort level of different regions of a subject.

Micro-environment controllable temperature and humidity system and method for evaluating heat and humidity comfort level of textiles

Disclosed are an electrochromic element, device, and product, and a manufacturing method therefor. The electrochromic device () comprises: an electrochromic yarn (), an ion storage yarn (), and a power source (), wherein the electrochromic yarn () contains a first flexible conductive yarn () and an electrochromic layer () coated on a surface layer of the first flexible conductive yarn (); the ion storage yarn () contains a second flexible conductive yarn () and an ion storage layer () coated on a surface layer of the second flexible conductive yarn (); and the first flexible conductive yarn () is electrically connected to a negative electrode of the power source (), and the second flexible conductive yarn () is electrically connected to a positive electrode of the power source (). The electrochromic device () can achieve a clear color development effect and make an electrochromic material have a good fastness. The preparation method is simple to operate and easily realizes industrial batch production.

Electrochromic elements, devices and products, and methods for manufacturing and utilizing the same

The present disclosure provides a method for reducing the inhalation of microorganisms, a washable mask for reducing the inhalation of microorganisms, applications of the mask and a method for manufacturing the same. The method for reducing the inhalation of microorganisms includes the steps of: providing a mask with a breathing zone, the breathing zone being used for covering a breathing part of a user; arranging two or more magnets around the breathing zone of the mask, the magnets generating a three-dimensional magnetic field, so as to change the moving trajectories of charged microorganisms in gas to be inhaled thereby increasing the probability of the microorganisms being captured by the filtering material.

Method and mask for reducing inhalation of microorganisms

A method for decolorizing a dyed textile comprising a synthetic fiber and a disperse dye, the method includes contacting the dyed textile with a super critical fluid thereby extracting at least a portion of the disperse dye from the textile into the super critical fluid and forming an at least partially decolorized textile.

Method for decolorizing textiles

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&#x2dc;180&#xb0; C. so that cotton fibers in the waste polyester-cotton textile undergo a degradation reaction for 0.5&#x2dc;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.

Method for separating and recycling a waste polyester-cotton textile by means of a hydrothermal reaction catalyzed by an organic acid

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.

Methods and systems for decolorizing textile materials

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Hong Kong, China

Lei Yao