摘要:
The present invention is directed to an embossed, three-dimensionally imaged nonwoven fabric, and more specifically, to an embossed, three-dimensionally imaged nonwoven fabric particularly suited for wipe applications. Further, the subsequent action of the entangling jets, which impart the three-dimensional images, affects the rigidity of the embossed images so as to provide a softer, more drapeable wipe.
摘要:
An apparatus for making pressed nonwoven articles, which apparatus has first and second die members that are arranged to move towards each other. The first die has a support surface for supporting a blank material, and the second die has a press surface for pressing the blank material. The pressing step occurs when the two dies are disposed in an operation position. The support surface has a support surface material that has a first hardness, and the press surface has a press surface material that has a second hardness. The first and second hardnesses are different from each other. The apparatus and method of the invention enable blank articles to pressed and/or cut as intended without risk of having unpressed or uncut portions.
摘要:
Absorbent articles comprising molded airlaid webs and other molded fibrous webs are disclosed. The molded webs can offer improved body fit, comfort, and/or improved fluid handling. Molded airlaid webs, for example, can be formed having a central longitudinal hump and flexure zones longitudinally removed from the central hump to provide good contact with the body and improved fit when the article is squeezed from the sides. Molding can be achieved when a binder material is activated by an energy source and the web is held against a molding substrate. Energy sources can include microwaves, heated air, heated metal surfaces, ultraviolet radiation, ultrasonic energy, and the like.
摘要:
A raw material (12) comprising a mixture of a natural fiber and a thermoplastic fiber is supplied to the surface of the rotating rotary body (11). The natural and thermoplastic fibers are scattered toward the carrying surface of the conveyor belt (15) by the rotational force of the rotary body (11). An air blower (14) may direct pressurized air to the scattered raw material (14) in order to further effect separation of the natural and thermoplastic fibers. Consequently, the natural fibers and the thermoplastic fibers are deposited such that the relative concentration of the natural fibers and the thermoplastic fibers gradually and seamlessly changes or varies across the thickness or depth of the resulting molded fiber material (50).
摘要:
A forming method for a fiber aggregate in which fibers are heated to be welded with each other includes a heating step of applying upward heated air to a bottom of a block of the fibers to pass the heated air therethrough and to cause the block of fibers to float, wherein at least parts of fibers are melted while the block of fibers float, and a compression step of compressing substantially in a vertical direction the heated block of fibers into a desired height. The compressed block of fibers is cooled to solidify melted portions of the fibers at portions where the fibers intersect with each other.
摘要:
This invention provides corrugated fiberfill structures with improved properties and processes for making the same. This invention further provides articles made from the improved corrugated fiberfill structures of the present invention.
摘要:
This invention provides corrugated fiberfill structures with improved properties and processes for making the same. This invention further provides articles made from the improved corrugated fiberfill structures of the present invention.
摘要:
A method is disclosed of controlling the thermohysteresis of a homogeneous or layered fibrous pre-form, comprised at least in part of thermoplastic staple length fibers, such that the physical properties of the resulting molded three-dimensional compound construct are significantly enhanced. In particular, the thermohysteresis is the result of a specific thermal history comprising the treatment of a fibrous pre-form with an elevated temperature incubation period followed by a cooling period. A so-treated fibrous pre-form can be subsequently molded by conventional thermomolding methods to render improved toughness, strength and structural stability to a resulting molded construct.
摘要:
Bonded fluff structures and a method for producing such bonded fluff structures in which a pulp sheet having a material suitable for producing fluff and a heat activatable fiber material is fiberized to produce a mixture of fluff and heat activatable fibers. The mixture is contacted with a hot air stream, heating the heat activatable fibers to an activation temperature. The resulting heated mixture is then deposited onto a forming structure, forming a bonded fluff/fiber composite matrix structure.
摘要:
The invention provides a sheet filter medium having autogenously bonded uncrimped conjugate fibers which contain a polyolefin and another thermoplastic polymer that have different melting points. The filter medium has a density between about 0.07 g/cm.sup.3 and about 0.2 g/cm.sup.3. The invention additionally provides a three-dimensionally thermoformed filter medium that has a density between about 0.07 g/cm.sup.3 and about 0.5 g/cm.sup.3.
摘要翻译:本发明提供了一种片状过滤介质,其具有自粘合未缀合的复合纤维,其含有聚烯烃和另一种具有不同熔点的热塑性聚合物。 过滤介质的密度为约0.07g / cm 3至约0.2g / cm 3。 本发明另外提供三维热成型过滤介质,其密度在约0.07g / cm 3至约0.5g / cm 3之间。