Patent classifications
B32B5/269
METHOD FOR PROCESSING NONWOVEN SHEETS BY COMBINED ACTIVATION AND BONDING
The invention relates to a method for manufacturing nonwoven sheets that includes a step of combined activation and bonding. The invention further relates to an application of this method to the making of elastically stretchable nonwoven laminate sheets, sheets produced by such method, and to uses for such sheets.
DEVELOPMENT MEDIUM, HEAT DEVELOPMENT METHOD, AND HEAT DEVELOPMENT SYSTEM
A development medium for flexographic heat development, the development medium having a porosity of 35% or more and 95% or less, and an elastic recovery rate of 40% or more and 99% or less.
ANTIBACTERIAL AND ANTIVIRAL DEGRADABLE MASK AND MANUFACTURING METHOD THEREOF
An antibacterial and antiviral degradable mask and a manufacturing method thereof are provided. From outside to inside, the mask sequentially comprises a surface layer (1), a core layer (2), and an inner layer (3) that contacts the face; the surface layer (1) is made of an antibacterial and antiviral cellulose spunlace non-woven fabric; the core layer (2) is made of a polypropylene melt-blown non-woven fabric; the inner layer (3) is made of a polypropylene spunbond non-woven fabric or a degradable natural cotton fabric. The mask can have both antibacterial and antiviral functions; moreover, the material is degradable, and thus, environmental pollution pressure caused by non-degradable petroleum-based fiber materials such as polypropylene can be effectively relieved.
SPUN-BONDED COMPOSITE WIPING NON-WOVEN FABRIC AND MANUFACTURING METHOD THEREFOR
A spunbound composite wiping non-woven fabric with a layered structure of an upper surface layer, a middle fiber layer, and a lower surface layer arranged in sequence; at least one of the upper surface layer and the lower surface layer is formed by a spunbound filaments, and the middle fiber layer is formed at least by viscose fibers; a weight of the middle fiber layer is greater than or equal to 65% of a total weight of the spunbound composite wiping non-woven fabric; fiber interfacing and intertwining areas exist between the upper surface layer and the middle fiber layer, as well as between the lower surface layer and the middle fiber layer.
AIR-CLEANING FILTER HAVING DUST COLLECTING AND DEODORIZING FUNCTIONS AND PREPARATION METHOD THEREFOR
An air-cleaning filter includes a non-woven fabric for dust collection and a non-woven fabric for deodorization having activated carbon particles combined therewith. By adjusting the particle diameter and content of the activated carbon particles and laminating with a non-woven fabric coated with an absorber for other gases, a dust collecting function and a deodorizing function can be imparted at the same time while also creating a structure with a low differential pressure.
Disposable Surgical Gown
A disposable surgical gown is provided. The gown includes a front panel and sleeves formed from a first spunbond layer, a nonwoven (e.g., SMS) laminate, and a liquid impervious, moisture vapor breathable elastic film disposed therebetween. The gown also includes a first and second rear panels formed from a nonwoven laminate that is air breathable and allows for an air volumetric flow rate ranging from about 20 standard cubic feet per minute (scfm) to about 80 scfm. The gown further includes a collar formed from an air breathable knit material positioned adjacent a proximal end of the gown. The collar defines a neck opening having a v-neck shape adjacent the front panel. The v-neck shape forms an angle of greater than 90 at the neck opening. The combination of features results in a reduced-glare gown that is stretchable and impervious to liquids, yet can still dissipate heat and humidity.
MELTBLOWN NON-WOVEN FABRIC, MULTI-LAYERED SPUNBONDED NON-WOVEN FABRIC COMPRISING SAME, AND METHOD FOR MANUFACTURING SAME
The present invention relates to meltblown non-woven fabric, multi-layered spunbonded non-woven fabric comprising same, and a method for manufacturing same, and to: meltblown non-woven fabric which uses recycled polyester flakes, thus being environmentally friendly, and is a material used in a sound absorbing material for automobiles due to the excellent rigidity, sound absorption capability and compressive modulus thereof, and thus can be used in automobile interior materials that require rigidity, sound absorption capability, and compressive modulus, such as wheel guards and trunk trims of automobiles; multi-layered spunbonded non-woven fabric comprising same; and a method for manufacturing same.
Barrier Fabrics with Desirable Air Permeability
A barrier fabric suitable as a backsheet for an underpad configured for a low air loss bed, in which the barrier fabric comprises a first nonwoven fabric including outermost spunbond layers and two or more fine-fiber containing nonwoven layers. Each of the nonwoven layers being treated with a non-fluorinated barrier coating (NFBC).
Absorption and Retention Systems for Vehicle Leaks
An absorption and retention system for vehicle leaks consists of a top absorbent pad received by a bottom layer, the two being fused together. The combination of top pad and bottom layer are geometrically configured to be removably attached by wires to the undercarriage of a vehicle and to be positioned for receiving leaks from the vehicle and being of a geometric configuration to avoid interference with any operative portions of the vehicle such as wheels or the like. The pad is adaptable for receiving any of numerous liquids, including lubricants, hydraulic fluids, coolants and the like. The top pad may be of absorbent polypropylene and the bottom film of a suitable flexible and impermeable plastic or spunbond polypropylene fabric. A mechanic pad facilitates implementation of the absorption and retention system.
Antibacterial and antiviral degradable mask and manufacturing method thereof
An antibacterial and antiviral degradable mask and a manufacturing method thereof are provided. From outside to inside, the mask sequentially comprises a surface layer (1), a core layer (2), and an inner layer (3) that contacts the face; the surface layer (1) is made of an antibacterial and antiviral cellulose spunlace non-woven fabric; the core layer (2) is made of a polypropylene melt-blown non-woven fabric; the inner layer (3) is made of a polypropylene spunbond non-woven fabric or a degradable natural cotton fabric. The mask can have both antibacterial and antiviral functions; moreover, the material is degradable, and thus, environmental pollution pressure caused by non-degradable petroleum-based fiber materials such as polypropylene can be effectively relieved.