The Hong Kong Polytechnic University

City University of Hong Kong

The Procter Gamble Company

Polyu Base (shenzhen) Limited

Jinlian Hu

Yong Zhu

Jing Lu

Jianping Han

Qinghao Meng

Binjie Xin

Jiping Wang

Pei Li

Yan Liu

Edward Newton

Baohua Liu

Subrata Mondal

Qunmin Ling

Xiuying Jiang

Yifan Si

You Wu

Yueyang Guo

Fenglong Ji

Shuo Shi

Shaojun Chen

Chunxia Guo

Hongsheng Luo

Mohammad Irfan Iqbal

Fang Zeng

Wenguang Liu

The present invention discloses a unidirectional moisturizing nanofiber facial mask substrate with asymmetric wettability and preparation thereof. The preparation includes: preparing a superhydrophilic electrospun fiber membrane on a substrate by electrospinning; preparing a hydrophobic electrospun fiber membrane by electrospinning on a lateral surface of the superhydrophilic electrospun fiber membrane away from the substrate to form a double-layered membrane; and removing the substrate, and drying the double-layered membrane to obtain the asymmetric unidirectional moisturizing facial mask substrate with one side being superhydrophilic and the other side being hydrophobic. The superhydrophilic layer can absorb a nutrient solution and be applied to the skin surface, while the hydrophobic layer can keep itself dry, reduce the consumption of the nutrient solution and inhibit volatilization of the nutrient solution. The process is simple, uses readily available materials, and is non-toxic, environmentally friendly, and low-cost, thus solving several key problems with current commercial facial mask substrates.

Preparation method of a unidirectional moisturizing nanofiber facial mask substrate with asymmetric wettability

A water-soluble unidirectional moisture transport traditional Chinese medicine facial mask and a preparation method thereof. The facial mask includes a facial mask substrate and a facial mask effective ingredient layer, wherein a lateral surface of the facial mask substrate is a hydrophobic surface, and the other lateral surface is a superhydrophilic surface; the facial mask effective ingredient layer is loaded to the superhydrophilic surface, in which facial mask effective ingredients include a traditional Chinese medicine colloid. In use, by simply spraying water, the effective ingredients such as the traditional Chinese medicine on the surface can be quickly dissolved to exert effects. Its hydrophobic layer can be kept dry, which not only delays volatilization of liquid and prolongs the effective time, but also is easy to operate and is clean and hygienic. The present invention has a simple preparation method, is non-harmful and non-toxic, low-carbon and environmentally friendly.

Water-soluble unidirectional moisture transport traditional Chinese medicine facial mask and preparation thereof

A woven, water-vapor permeable, water-responsive, shape-memory wool fabric that possesses switchable pore size and shape responsive to varying water content absorbed thereby is demonstrated, more particularly, the wool fabric exerts corresponding thermal and water vapor regulations between the wearer and the surroundings with respect to the temperature and humidity changes.

Water-responsive shape memory wool fiber, fabric and textile comprising thereof, and method for preparing the same

A two-way shape memory polymer composite material is provided, which comprises two interpenetrating network polymers, wherein one polymer is a shape memory polymer made of crystalline cross-linked polymer, the other one is a cross-linked elastomeric material. The composite material is formed by interpenetration of two network polymers, wherein one network polymer will shrink under heating and the other network polymer acts as the segment for energy storage. When the first polymer network shrinks under heating, it presses the second polymer network, while the heating is cancelled the pressed second polymer network will enforce the first polymer network to recover the original shape, therefore it has the behavior of two-way shape memory.

Two-way shape memory polymer composite material and preparation method thereof

A semi-crystalline shape memory polymer with transition temperature near body temperature and the production method thereof is disclosed. The shape memory polymer comprises a polymer chain which further comprises a plurality of prepolymers and a plurality of chain extenders bonding the prepolymers together in which each prepolymer further comprises a plurality of synthesized units. The above mentioned synthesized unit is obtained by reacting polymer diol with first diisocyanate. The obtained synthesized units are polymerized together with second diisocyanate and chain extender to form the shape memory polymer.

Semi-crystalline shape memory polymer and production method thereof

A method for making items of clothing having shape memory, the method comprising: synthesizing () a shape memory polyurethane; subjecting () the shape memory polyurethane to wet spinning, dry spinning, melt spinning or multi-component spinning in order to produce shape memory fibers; and knitting or weaving () the shape memory fibers to form the item of clothing.

Items of clothing having shape memory

A method of imparting a shape memory effect to hair may include administrating an effective amount of a hair-conditioning agent to hair. The hair-conditioning agent may include a shape memory polymer selected from the group consisting of a polyurethane, an acrylic acid copolymer, a pyridine-based copolymer, and a pyrrolidone copolymer.

Conditioning agent and a method for making hair having a shape memory effect

A textile benefit composition comprising a polyurethane and/or a polyurethane co-polymer; a cross-linking agent; a catalyst; and a carrier and processes for making and using the aforementioned compositions and textiles treated with such compositions are disclosed.

Benefit compositions and methods

A temperature-regulating fiber may include a spun phase change polymeric material that may include a plurality of phase change polymer blocks. The fiber may have a fixity ratio of at least 80% and a recovery ratio of at least 74%.

Temperature-regulating fiber and a method of making the same

This invention provides a deodorant capable of releasing deodorant agents at certain temperatures and having improved adherence to textiles. The deodorant of this invention includes polymer particles formed by reacting a main monomer of (N-substituted alkyl)acrylamide, a functional monomer for bonding the polymer particles to a fibrous substrate, and a cross-linking agent. A deodorant agent is loaded to the polymer particles.

Methods of manufacturing deodorants, and deodorants resulting thereof

This invention involves fabric-supported chitosan modified temperature responsive PNIPAAm/PU hydrogel and the use thereof in preparation of facial mask. The merit of this invention is the hydrogel formed can reversibly swell and deswell near body temperature; the incorporation of PU can suppress the syneresis of PNIPAAm at an elevated temperature; Grafting of PNIPAAm and PU onto the surface of cellulose fabrics can enhance the mechanical strength of hydrogel; Coupling of chitosan to the surface of hydrogel can not only improve the handle and skin affinity, but also render the facial mask antibacterial; The hydrogel is capable of loading a variety of nutrients (or other functional components), which can release at body temperature; the hydrogel facial mask can be reusable with repeated rinsing.

Fabric-supported chitosan modified temperature responsive PNIPAAm/PU hydrogel and the use thereof in preparation of facial mask

The current major way of making nanofibers is electrospinning. However, the minimum fiber diameter is limited to be about 300&#x2013;500 nm, which is not compliant with the physical definition of nano structures (in the region of 1 to 100 nm). Futher, the productivity is relatively low. This invention provides a method for manufacturing a nano-sized di-block polymer including at least a hard-segment polymer and a soft-segment polymer. First, a sample containing the hard-segment polymer, the soft-segment polymer, and a catalyst is dissolved in a first solvent. Then the dissolved sample is cast on substrate, and then the first solvent to is removed form a dried sample. Finally, the nano-sized di-block polymer is formed by crew-cutting.

Methods for producing di-block polymers

A method of three dimensional measurement, evaluation, and grading system for fabric/textile structure/garment appearance, based an values P and Q, is carried out using a fixed digital camera positioned above a piece of the fabric, shining at least two different parallel light beams from inclined directions onto the surface of the fabric and capturing different reflected images of the surface with the camera. The captured images are analysed to derive certain parameters relevant to the appearance. In particular, values of P+Q may be used in a grading evaluation, where P and Q are summations of the surface gradients for a plurality of evenly distributed points in an x direction and in a y direction of the surface, respectively.

Three dimensional measurement, evaluation and grading system for fabric/textile structure/garment appearance

Open end yarn is passed through a drawing zone located between a front roller and a back roller controlled to rotate at different velocities. An air jet nozzle is located between the two rollers and directs a jet of air at the yarn. The drawing improves various characteristics of the yarn, making the processed yarn more suitable for making textile articles.

Method of improving properties of open end yarn

A system for analyzing fabric surface appearance includes a feed mechanism for running a fabric over a crest including a frame for holding the fabric bent to form a crest, an image capturing device for capturing profile images of the fabric surface at the crest, and a computer system for manipulating the images. The computer system produces a three-dimensional representation of the fabric surface and identifies characteristics in the three-dimensional representation. The information is compared to reference data to identify a grade for the fabric.

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Hong Kong, China

Jinlian Hu