9 results about "Moisture transfer" patented technology

The utility model discloses a double -faced PVC artificial leather, this double -faced PVC artificial leather includes: intermediate moisture transfer layer, first surface layer and second surface layer, first surface layer sets up in one side surface of intermediate moisture transfer layer, and second surface layer is opposite first surface layer and sets up in the other side surface of intermediate moisture transfer layer, the surface of intermediate moisture transfer layer is provided with the Y type groove of uniform direction arrangement and intercommunication, forms the moisture transfer channel, and first surface layer is provided with the micropore structure of dense arrangement, second surface layer sets up as porous structure layer, and, based on the internal aperture of second surface layer, the one side of second surface layer towards intermediate moisture transfer layer sets up as first gradient area, and the one side of second surface layer away from intermediate moisture transfer layer sets up as second gradient area, to make second surface layer whole formation aperture gradient structure. Double -faced PVC artificial leather is through the Y type groove of uniform direction arrangement and intercommunication and is provided with in intermediate moisture transfer layer surface, forms the moisture transfer channel, to accelerate moisture and airflow conduction through capillary effect.

According to an example aspect of the present invention, there is provided a composite membrane for moisture transport, and a method for producing such, wherein the composite membrane comprises a layered structure of at least one porous base layer and a functional layer, and has high moisture transfer rate and low air permeance.

This invention discloses a protective mask with synergistic cooling functions of radiation and evaporation, and its preparation method. The mask consists of inner and outer functional support layers and a core filter layer. The inner and outer functional support layers are made of polylactic acid (PLA) spunbond nonwoven material and spunlace nonwoven material, respectively. The core filter layer is an electrospun Janus PLA micro / nanofiber membrane with unidirectional moisture-wicking function. The core filter layer is composed of a hydrophobic PLA fiber layer and a hydrophilic modified PLA@PEO fiber layer, forming an inner and outer hydrophobic gradient to achieve rapid unidirectional moisture transfer from the inside to the outside and moisture evaporation cooling. In addition, the protective mask utilizes the high infrared emissivity of PLA material and the strong solar reflection characteristics of the electrospun micro / nanofiber structure to achieve radiative cooling. This invention can achieve synergistic cooling effects of radiation and evaporation while ensuring high filtration efficiency and particulate matter protection, improving thermal and humidity comfort when wearing the protective mask for extended periods.

This application relates to a spunbond nonwoven fabric with a smooth feel and long-lasting unidirectional moisture wicking properties, and its preparation method. It belongs to the technical field of unidirectional moisture-wicking spunbond nonwoven fabrics. The fabric includes: a skin-adhering inner layer, an intermediate layer, and an evaporating outer layer. The skin-adhering inner layer comprises 98.5-99.8% matrix resin and 0.2-1.5% first masterbatch. The intermediate layer comprises 96-98.5% matrix resin, 0.5-1% second masterbatch, and 1-3% graft-modified resin. The total mass of the raw material components in the evaporating outer layer is 100%. The evaporating outer layer comprises 95-98% matrix resin and 2-5% second masterbatch. The first masterbatch is a fluorinated compound, and the second masterbatch is a mixture of nano-titanium dioxide and a polyoxyethylene-polypropylene-polyoxyethylene triblock copolymer. The graft-modified resin is a mixture of polyethylene grafted with maleic anhydride and an ionomer. The spunbond nonwoven fabric prepared by this application can simultaneously achieve smoothness, adhesion, and long-lasting unidirectional moisture wicking properties.

This invention relates to the field of medicinal plant processing technology and discloses a production device for digestive granule preparations based on Dendrobium officinale powder. The device includes a drying chamber and a leveling component. A fixed frame is rotatably connected inside the drying chamber. A motor is fixedly connected to the rear side of the drying chamber, and the drive end of the motor is fixedly connected to the fixed frame. A top plate is fixedly connected to the upper part of the fixed frame. Multiple drying trays are slidably connected to the inner side of the fixed frame. A lifting mechanism is provided on the fixed frame to push the multiple drying trays to move along the height direction of the fixed frame, thereby increasing the distance between adjacent drying trays. This invention, through the coordinated operation of the lifting mechanism and the leveling component, achieves quantitative loading and uniform leveling of Dendrobium officinale material, effectively avoiding the problems of local accumulation and uneven thickness of the material. It ensures the uniformity of heating and moisture transfer during low-temperature drying, preventing local moisture content exceeding the standard, material mold growth, and loss of effective components.

This invention belongs to the fields of chemistry and chemical engineering, and discloses a microporous moisture transfer membrane material modified with hydrophilic nanoparticles and its preparation method. Dopamine or its derivatives are used in a confined polymerization process within a microporous structure to form hydrophilic nanoparticle aggregates with a diameter less than 5 nanometers, which can induce capillary condensation of water vapor. This synergistically improves the water vapor permeability and gas barrier properties of the moisture transfer membrane material. Simultaneously, a hydrophilic modification layer with a roughness between 10.0 and 30.0 nanometers is polymerized on the membrane material surface to enhance the membrane material's ability to capture gaseous water molecules, thereby strengthening the water vapor permeability. The microporous moisture transfer membrane material prepared according to the technical solution of this invention achieves a water vapor permeation rate of 7300 GPU in a saturated humid air environment at 80 °C, while the oxygen permeation rate is only 1.3 GPU. Long-term testing shows that the water vapor permeability and gas barrier properties can remain stable for over 8000 hours.

The application provides an automatic humidity adjusting type functional fiber membrane based on intelligent temperature sensing and a preparation method thereof. The method is to construct a new type of instantaneous free radical integrated polymerization gel composite fiber layer on the surface of the padding finished intelligent temperature sensing fiber membrane, and the two are organically combined to form a "double intelligent response system" functional fiber membrane finished product. Overall, the intelligent response characteristics of wash-resistant, wear-resistant, low temperature moisture absorption and high temperature one-way moisture transfer are realized, so that the raw fiber becomes a functional intelligent fiber fabric with excellent moisture permeability, air permeability, wear resistance and other multiple protection functions, and can realize wash-resistant ability and ultra-light design.

The present application relates to the field of textiles, and particularly relates to a functional chenille knitted fabric and a preparation method thereof. The fabric yarns of the chenille knitted fabric include first yarns, second yarns and third yarns. The knitted fabric includes an inner layer, an intermediate layer and an outer layer. The first yarns, the second yarns and the third yarns jointly form the inner layer of the knitted fabric. The first yarns and the second yarns jointly form the intermediate layer of the knitted fabric. The first yarns alone form the outer layer of the knitted fabric. The first yarns are modified chenille yarns. The core yarns of the modified chenille yarns are profiled cross-section modified polyester fiber or polyamide fiber yarns. The feather yarns of the modified chenille yarns are blended or pure hydrophilic fiber yarns. The second yarns are elastic fiber yarn cover yarns. The knitted fabric has comfortable elasticity and is not tight. The knitted fabric is not prone to deformation and affects the appearance of the garment after long-term wearing. The knitted fabric has excellent anti-pilling and anti-snagging properties, good air permeability and moisture permeability, and good warmth retention. The knitted fabric has durable moisture absorption, quick drying and one-way moisture transfer functions.

The application discloses a clothes care cabinet, which comprises a care cabinet shell, a care chamber, a dehumidification chamber arranged in the care chamber and used for dehumidifying the care chamber, a first channel, a second channel, a moisture transfer member arranged in the dehumidification chamber and used for absorbing moisture in the dehumidification chamber and guiding dry air into the care chamber, and the moisture transfer member has an adsorption area in communication with an air inlet of the second channel and a desorption area used for discharging moisture adsorbed in the adsorption area. The clothes care cabinet is provided with the dehumidification chamber, the dehumidification module is integrated in the dehumidification chamber, the application space of the clothes treatment cabinet is improved, the power of the equipment is reduced, and energy is saved. In addition, the dehumidification is concentratedly treated, the efficiency of the clothes care cabinet is improved, and the production cost is saved.