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68results about How to "Reduce basis weight" patented technology

Methods of manufacturing a stretched mechanical fastening web laminate

The present invention relates to a method of manufacturing a stretched mechanical fastening web laminate (1) comprising a thermoplastic web layer (13) having two major surfaces, one of the major surfaces bearing a multitude of male fastening elements (14) suitable for engagement with a corresponding female fastening material, and on its other major surface a fibrous web layer (11), said method comprising the steps of(i) providing the fibrous web layer (11) having an initial basis weight,(ii) passing the fibrous web layer (11) through a nip formed by two rolls (101), (103), one of them having cavities (120) that are the negatives of a plurality of male fastening elements (14), introducing a molten thermoplastic resin into the cavities (120) in excess of an amount that would fill the cavities (120) which excess forms the thermoplastic web layer (13), allowing the resin to at least partially solidify and stripping of a precursor web laminate (10) thus formed comprising the fibrous web layer (11) and the thermoplastic web layer (13) bearing a plurality of male fastening elements (14), from the cylindrical roll (103) having cavities (120) whereby the thermoplastic web layer (13) has an initial thickness and an initial hook density, and(iii) stretching the precursor web laminate (10) monoaxially or biaxially thereby decreasing the basis weight of the fibrous web layer (11) and the thickness of the thermoplastic web layer (13) from their respective initial values to provide a stretched mechanical fastening laminate (1) having a basis weight of less than 100 g·m−2.
Owner:3M INNOVATIVE PROPERTIES CO

Absorbent personal care article having wings and protective strips

An absorbent personal care article, such as a sanitary napkin or incontinence pad is described having a longitudinal centerline and a transverse centerline and including a pair of opposed first and second wings extending along the longitudinal sides of the article. The article further includes first and second protective strips attached to the sides of the article such that when the wings are folded under the article and around the wearer's undergarment, the first and second protective strips extend laterally outboard of the article and the edges of the wearer's undergarment to provide additional protection against leakage of body fluids deposited onto the absorbent personal care article
Owner:KIMBERLY-CLARK WORLDWIDE INC

Absorbent article

An absorbent article comprising nonwoven fabric having convex and concave surfaces, and that allows liquid such as excreta and the like to permeate quickly. A sanitary napkin has a plurality of raised ridge portions and groove portions in a top sheet member. The fiber density of the side edge portions of each of the plurality of raised ridge portions in the thickness direction of the nonwoven fabric is substantially uniform, and is higher than the average fiber density in the raised ridge portions. The fiber density of the central portion between both the side edge portions of each of the plurality of raised ridge portions is substantially uniform in the thickness direction of the nonwoven fabric, and is lower than the average fiber density in the raised ridge portions.
Owner:UNI CHARM CORP

Lightweight glass fiber reinforced thermoplastic material

InactiveUS20090011210A1Improve flexural and tensile strength and modulus propertyReduce basis weightLamination ancillary operationsLayered product treatmentFlexural strengthFiber
A glass fiber reinforced thermoplastic sheet material is provided in which certain properties, or combinations of properties, are improved relative to similar comparative sheet materials. The sheet material generally comprises a glass mat or glass fabric fiber reinforced thermoplastic resin in which the thermoplastic resin at least partially impregnates the glass mat or fabric. The thermoplastic sheet material contains about 15 wt. % to about 65 wt. % of the glass mat or fabric based on the weight of the thermoplastic sheet material and has a thickness in the range of about 0.4 mm to about 3.0 mm. By including glass mat or fabric and maintaining the sheet thickness in the aforementioned range, the present invention thermoplastic sheet material exhibits improved flexural and / or tensile strength and modulus properties at reduced basis weight compared to a comparative thermoplastic sheet materials. A method of providing the glass fiber reinforced thermoplastic sheet material having an improved combination of flexural strength and modulus and / or tensile strength and modulus properties is also described, in which a first layer of a first thermoplastic resin, a second layer of a second thermoplastic resin, and a layer of glass mat or glass fabric are provided; the first thermoplastic resin layer, the second thermoplastic resin layer and the glass mat or glass fabric layer are arranged such that the glass mat or glass fabric layer is interposed between the first and second thermoplastic resin layers; and heat and pressure are applied to substantially melt and compress the first thermoplastic resin and / or the second thermoplastic resin and to at least partially impregnate the glass mat or glass fabric layer with the molten first thermoplastic resin and / or the molten second thermoplastic resin.
Owner:AZDEL INC

Panel materials for vehicles and enclosures

A fiber reinforced polymer material having an improved combination of characteristics. The polymer material generally comprises a fiber reinforced polymer resin containing reinforcing fibers and having a porosity between about 0% to about 95% by volume of the polymer material. The fiber reinforced polymer material may form a panel or substrate material that helps resist impact and / or environmental loading. Typically, such a material includes a fiber reinforced thermoplastic or thermoset support layer that has a skin layer on one or both sides, which are joined to one another to form the substrate or panel material. The exterior skin layer typically includes a polymer resin that may also include a support structure, such as reinforcing fibers. The resulting material is typically lightweight and has a reduced basis weight, particularly as compared to current commercial products, in addition to a low thermal expansion such that it provides improved resistance to delamination, improved dimensional stability and flexibility, and decreased water absorption and retention.
Owner:WILLIS CHRISTOPHER D +2

Paperboard material with expanded polymeric microspheres

InactiveUS20070256805A1Improve offset print performanceDecreased print mottle of printedNon-fibrous pulp additionNatural cellulose pulp/paperCoated surfaceMicrosphere
The present invention is related to a paperboard product having a basis weight in a range of 100 to 350 pounds per 3,000 square feet. The paperboard comprises at least one coated surface suitable for printing. The at least one coated surface comprising cellulosic fibers and from about 0.05 to about 0.5 wt. % dry basis expanded synthetic polymer microspheres based on total weight of the of cellulosic fiber dispersed thereof. The coated surface has a Parker smoothness less than about 2.0 and a Hagerty / Sheffield smoothness not less than about 20 Sheffield units.
Owner:INT PAPER CO

Nonwoven fabric laminate, moisture-permeable nonwoven fabric laminated sheet using nonwoven fabric laminate, and sanitary products using them

There is provided by the present invention a nonwoven fabric laminate which comprises a first spunbonded nonwoven fabric comprising a propylene-based polymer (first SB nonwoven fabric), a melt blown nonwoven fabric comprising a propylene-based polymer and laminated on the first spunbonded nonwoven fabric, and a second spunbonded nonwoven fabric (second SB nonwoven fabric) comprising a propylene-based polymer and laminated on the melt blown nonwoven fabric, and which has overall basis weight of not more than 30 g / m2, wherein the basis weight of the first SB nonwoven fabric is in the range of 3 to 25 g / m2, the basis weight of the second SB nonwoven fabric is in the range of 1 to 11 g / m2, the ratio of the basis weight of the first SB nonwoven fabric to the basis weight of the second SB nonwoven fabric is not less than 1.6, the ratio of a thickness of the first SB nonwoven fabric to a thickness of the second SB nonwoven fabric is not less than 1.4, the basis weight of the melt blown nonwoven fabric is less than 3 g / m2, and the compression bond area ratio is in the range of 6 to 25%.
Owner:MITSUI CHEM INC

Coated dental devices with ablative abrasives

Dental devices coated with substantially aqueous-free, saliva soluble, base coatings and ablative abrasives that break down during flossing; which combination creates the perception during flossing that said devices are working.
Owner:WHITEHILL ORAL TECH

Water degradable microlayer polymer film and articles including same

A microlayer polymer film comprising a plurality of coextruded microlayers including a non-degradable layer comprising a non-water degradable, melt-extrudable polymer and degradable layer comprising a water degradable, melt-extrudable polymer. The microlayer polymer film degrades when soaked in water and is suitable as a covering material for disposal items such as flushable diapers. The microlayer polymer film is also breathable and is a barrier to small amounts of water. A suitable non-water degradable, melt-extrudable polymer is linear low density polyethylene filled with a particulate filler. A suitable water degradable, melt-extrudable polymer is polyethylene oxide.
Owner:KIMBERLY-CLARK WORLDWIDE INC

Method in connection with the production of mechanical pulp

A method in connection with the production of mechanical pulp from a cellulose containing material wherein the material is processed in at least one refining step to produce pulp. According to the invention, the pulp is fractionated (4), after a first refining step (1), in order to separate primary fines (5) from the pulp. The invention also relates to a mechanical pulp, produced by the method, and to a paperboard, which at least partly consists of such mechanical pulp.
Owner:STORA ENSO AB

Waterborne adhesives for reduced basis weight multilayer substrates and use thereof

The adhesive composition comprising emulsion polymers and microspheres and articles made therefrom are provided. The adhesive is particularly suitable for packages for consumer products that provide sufficient strength and thermal insulation while reducing the overall basis weight of the substrates.
Owner:HENKEL KGAA

Increased ballistic performance of fabrics coated with polymer stripes

A fabric layer with a polymer disposed thereon in a series of curves, stripes, or combinations thereof and the polymer is substantially continuous within the series of curves, stripes, or combinations and covers no greater than 20% of the fabric layer and a process for making the layer.
Owner:EI DU PONT DE NEMOURS & CO

Papermaking method using opacification aid, and paper product made thereby

A method for making an opacity relevant grade paper or paperboard product, such as a communication type paper used for printing and writing applications, utilizes an effective amount of quaternized alkanolamine fatty acid ester compounds as an opacification aid to control the optical properties of the paper or paperboard product as a wet-end additive to a papermaking operation. Using the quaternized alkanolamine fatty acid ester compound can improve the opacity of the paper or paperboard product, maintain the opacity of the paper while reducing the use of other opacification aids, such as inorganic fillers and / or pigments, and allow for a reduction in paper grammage without a compromise in opacity. The improvements in paper optical properties are achieved without adversely affecting other characteristics of the paper product such as bulk value, tensile strength, tear index, and the like.
Owner:KEMIRA CHEM

Stretched mechanical fastening web laminate

A stretched mechanical fastening web laminate having a thermoplastic web layer with two major surfaces is disclosed. One of the major surfaces bears a multitude of male fastening elements suitable for engagement with a corresponding female fastening material, and on its other major surface is a fibrous nonwoven web layer. The stretched mechanical fastening web laminate is stretched to provide a basis weight of less than 100 g / m2.
Owner:3M INNOVATIVE PROPERTIES CO

Composite sheet and absorbent article comprising composite sheet

A composite sheet that has a low basis weight and can inhibit adhesives from flowing out is provided. The composite sheet 1 according to the present invention is formed by bonding a stretchable nonwoven fabric 2 and a non-stretchable nonwoven fabric 3 to each other with adhesives 4 . The stretchable nonwoven fabric 2 in an extended state is bonded to the non-stretchable sheet. The stretchable nonwoven fabric 2 has a plurality of strip-shaped non-dense regions 21 and a plurality of strip-shaped dense regions 22 formed on both its surfaces alternately and alternately in the transverse directionsuch that the dense regions 22 on one of the surfaces and the dense regions 22 on the other surface are not overlapped with each other. The stretchable nonwoven fabric 2 includes thermoplastic fibersthat have been stretched at least partially and elastomer fibers.
Owner:UNI CHARM CORP

Cleansing sheets, manufacturing process and use thereof

Disclosed are liquid impregnated sheets containing a combination of split-fibres and / or meltblown fibres with regular fibres of thermoplastic polymers. The sheets can be monolayers or multilayers with non-wovens of split-fibres on the outer portions of the multilayered sheets. The sheets possess good storage and release characteristics for a liquid and can be used as cleansing sheets for personal care or for polishing purposes.
Owner:CARL FREUDENBERG KG +1

Nonwoven Web With Enhanced Barrier Properties

InactiveUS20180178486A1Barrier capacity can be increasedSmall spreadPersonal careProtective equipmentFiberTextile
This invention relates to nonwoven textile with barrier properties containing a first barrier layer A with a theoretical cover coefficient TCC A, and consisting of fibres having a median fibre diameter in the layer of dAm, and a second barrier layer B with a theoretical cover coefficient TCC B, and consisting of fibres having a median fibre diameter in the layer of dBm; while the first barrier layer A and the second barrier layer B are together in direct contact. The median diameters of fibres in the first and second layer have a theoretical fibre diameter coefficient x=(dBm−dAm) / dAm, where the theoretical fibre diameter coefficient x is less than or equal to 1 and where the theoretical fibre diameter coefficient x is greater than or equal to 0.25, and the sum of the theoretical cover coefficient TCC A and TCC B is greater than or equal to 50%.
Owner:PFNONWOVENS CZECH SRO

Meltblown nonwoven fabric and uses thereof

InactiveUS20150233030A1Low bulk densitySatisfactory sound absorption performanceLayered productsFilament/thread formingPolymer scienceFiltration
A meltblown nonwoven fabric is provided having thermoplastic resin fibers having an average fiber diameter of 0.1 to 10 μm, a bulk density of not more than 36 kg / m3 and an air permeability, as measured by a Frazier type method at basis weight of 200 g / m2, of 3 to 100 cc / cm2 / sec. The meltblown nonwoven fabric has a low bulk density and is excellent in sound absorption performance, oil adsorption performance, heat insulation performance, dust collection performance and filtration performance. Since the meltblown nonwoven fabric can be formed from one kind of a resin composition, it can be simply and easily produced as compared with the case of using mixed fibers or conjugated fibers formed from many kinds of resins, and the resulting meltblown nonwoven fabric can have uniformity and no variability of properties.
Owner:MITSUI CHEM INC

Tissue paper making machine, tissue paper produced therewith and method for producing such a tissue paper

A tissue paper making machine, a tissue paper product, and a method for producing such a tissue paper product. According to the invention, a dewatering and sheet-forming wire (13;14) is deposited in the pulp flow area by a texturing wire (16;17) that is provided with a texture comprised of closed wire zones. This results in the production of a tissue paper product having improved optical and haptic properties.
Owner:SCA HYGIENE PROD AB

Charged filter medium and method for manufacturing charged filter medium

The purpose of the present invention is to provide a charged filter medium having superior filtration performance and a method for manufacturing a charged filter medium. The present invention is a charged filter medium having both superior pressure loss and collection efficiency in excellent balance such that the pressure loss is 24 Pa or less with an air flow of 10 cm / s and the collection efficiency for particles with a particle size of 0.3 - 0.5 [mu]m at an air flow of 10 cm / s is 76% or greater, even being a charged filter medium provided with a fine fiber layer with a median fiber diameterfor constituent fibers smaller than 2.1 [mu]m and a mesh smaller than 10 g / m2 and a charged laminate wherein a support fiber layer is integrated by lamination. In addition, a method for manufacturingthe charged filter medium has a step for preparing a laminate by integration of a fine fiber fabric and a support fabric by lamination, thereby being able to provide the same to a polarized fluid charging method in a state where the fine fiber fabric is reinforced by the support fabric. As a result, it is possible to manufacture a charged filter medium having both superior pressure loss and collection efficiency in excellent balance.
Owner:NIPPON BAIRIIN
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