36 results about "Lamination paper" patented technology

The invention relates to a method of producing a laminate paper product comprising at least two layers, said method comprising (i) providing an aqueous suspension comprising cellulosic fibers (ii) adding to the suspension microfibrillar polysaccharide in an amount to yield from about 0.05 to about 50 wt % based on the weight of the cellulosic fibers (iii) dewatering the obtained suspension and forming a first layer having a density from about 150 to about 500 kg/m3 of said laminate paper product. The invention also relates to a method comprising (i) providing an aqueous suspension comprising cellulosic fibers (ii) adding to the suspension microfibrillar polysaccharide in an amount to yield from about 0.05 to about 50 wt % based on the weight of the cellulosic fibers (iii) dewatering the obtained suspension and forming at least a first and a second layer of said laminate whereby at least one of said at least first and second layer is formed from an aqueous suspension obtained in step (ii) containing microfibrillar polysaccharide; and joining said layers in such way that the laminate product obtains a density from about 150 to about 800 kg/m3. The invention also relates to a laminate paper product which can be obtained by the method and the use thereof.

A single use disposable, recyclable paper pallet for supporting products during storage and shipping is provided. The pallet comprises a corrugated panel resting on multiple, parallel corrugated runners locked together by lateral supports. The runners are made from blanks folded into elongated open-ended box-like shapes. The folded runners have perforated tabs that extend upwards from the top surface of the runners and configured to receive the lateral supports. The lateral supports are formed from a sheet of convolutely wound, formed laminated paper and provide lateral strength so the pallet can be handled with a clamp truck.

The invention discloses a laminated paper base plate for use in drilling of a PCB (Printed Circuit Board) and a manufacturing method of the laminated paper base plate. The base plate comprises an inner layer consisting of inner paper, and surface paper arranged on the upper and lower surfaces of the inner layer, wherein the inner paper is obtained by steeping kraft paper with modified urea formaldehyde resin, baking and cutting; the formula of the modified urea formaldehyde resin comprises the following components in parts by weight: 100 parts of urea formaldehyde resin, 20-50 parts of a toughening modifier, 2-6 parts of filler, 0.5-1 part of a dispersing agent and 20-40 parts of a viscosity adjusting agent; the surface paper is obtained by steeping balance paper or wood pulp paper with the urea formaldehyde resin, baking and cutting. The base plate is manufactured by adopting a specific process, so that wear to a drill pin during drilling is reduced; burrs are reduced, the hole wall quality of drilled holes is improved, and the problem of warping of the urea formaldehyde resin is solved. The base plate has the advantages of high flatness, no deformation, high weather resistance and proper strength, is relatively low in production cost, and has a wide application prospect and the high market competitiveness.

A method of manufacturing headgear of a peeling off effect adopts papers in the headgear manufacture, i.e. pluralities of laminated papers are combined with a fabric, and then integrally colored, cut and sewn to form a headgear. After a wash treatment, the paper material of the headgear will gradually peel off to engender a cracked effect of different degrees on the appearance depending the length of the use time, thereby obtaining an ancient, pioneering and special style.

A method and apparatus for in one implementation, a rigid paperboard container, the container being constructed from extrusion coated or laminated paperboard is provided. The rigid paperboard container comprises (a) a paperboard substrate having opposed inner and outer surfaces, (b) a first polymer layer coated or laminated onto the outer surface of the paperboard substrate, the first polymer layer comprising (i) metallocene catalyzed polyethylene polymer and (ii) optionally LDPE, (c) a second polymer layer coated or laminated over the first polymer layer, the second polymer layer comprising (i) metallocene catalyzed polyethylene polymer and (ii) LDPE and (d) a third polymer layer coated or laminated over the second polymer layer, the third polymer layer comprising (i) metallocene catalyzed polyethylene polymer and (ii) optionally low density polyethylene polymer (LDPE).

The disclosure provides a laminate paper comprising a treated inorganic core particle, in particular treated titanium dioxide (TiO₂) particle, having improved dispersability, prepared by a process comprising: (a) heating a slurry comprising porous silica treated inorganic core particle and water at a temperature of at least about 90° C.; and (b) adding a soluble alumina source to the slurry from step (a) while maintaining the pH at about 8.0 to 9.5 to form an alumina treatment on the porous silica treated inorganic core particle; wherein the treated inorganic core particle does not comprise dense silica or alumina treatments, and has silica present in the amount of about 7% to about 14% and alumina present in the amount of about 4.0% to about 8.0%; and wherein the particle to particle surface treatments are substantially homogeneous.

The invention discloses a preparation method of titanium dioxide for decorative laminated paper with high retention rate, and belongs to the technical field of titanium dioxide production. The invention firstly uses aluminum sulfate octadecahydrate as a raw material, controls the precipitation morphology through ammonia water, and obtains nano-flaky alumina, which is modified by tin tetrachloride, a silane coupling agent and the like and used as a template, and then titanium tetrachloride is used as a template. As a titanium source, the nano-sheet alumina is coated, and then the aluminum phosphate layer and the alumina layer are sequentially coated to obtain a mixed solution of re-coated titanium dioxide. The titanium dioxide for decorative laminated paper with high retention rate can be obtained by grinding. The titanium dioxide prepared by the invention can improve the light resistance, dispersibility and hiding power of the titanium dioxide in the laminated paper very well, and can meet the requirements of titanium dioxide for laminated paper. requirements.

Improved packaging materials for packaging multiple mattress spring cores together in a compressed stack, wherein the two ends of the stack are covered by end panels comprising a laminated paper stack panel that includes one or more layers of a stretchable paper called extensible kraft paper laminated together with a water soluble glue. The mattress spring cores are separated by an interleaving sheet comprising one layer of extensible kraft paper.

The invention particularly provides a biomass lamination material for lamination paper. The biomass lamination material for the lamination paper is prepared from, by mass, 75%-95% of full-biomass polyethylene, 2%-5% of lubricating agents and 3%-20% of fillers, wherein the full-biomass polyethylene is formed by polymerizing ethylene, and the ethylene is prepared from ethyl alcohol obtained through fermentation of starch or cellulose or lignin through dehydration. According to the biomass lamination material for the lamination paper, the main raw materials are taken from natural renewable substances, the whole materials are disintegrated into debris along with biodegradation of the renewable substances, a certain degradation property is achieved, and a positive effect on reduction in carbon dioxide emission is achieved.

A biodegradable paper cup comprising a single PLA laminated paper sheet can be manufactured using no adhesives. Employing a single PLA laminated paper sheet in which barium sulfate or precipitated barium sulfate is compounded with a PLA resin as cup making materials.

A polyester laminate paper with excellent adhesiveness, thermal resistance, moldability and the like as prepared by laminating a polyester resin in a pellet form on at least one of the faces of a paper, the polyester resin containing a butylene terephthalate recurring unit as the main component and satisfying the following conditions (1) and (2): (1) the melt tension thereof at 250° C. is 0.5 to 2.5 mN; and (2) the difference (ΔIV) between the intrinsic viscosity of pellet surface part IV (S) and the intrinsic viscosity of pellet center part IV (C) is 0.1 or less.

Provided is a method for producing a polyvinyl alcohol laminated paper, which is free of wrinkles and concave curls, whereby an aluminum vapor-deposited layer obtained by vacuum deposition of aluminum is disposed on the surface of a polyvinyl alcohol film, a water-based adhesive having a concentration of 40 to 60%, a viscosity of 500 to 4,000 mPa.s and a coverage of 3 to 5 g/m2 is applied to the reverse surface of the polyvinyl alcohol film, said polyvinyl alcohol film is laminated to a base paper, and a printed layer is formed by printing on the polyvinyl alcohol laminated paper. Alternatively, the water-based adhesive having a concentration of 40 to 60%, a viscosity of 500 to 4,000 mPa.s and a coverage of 3 to 5 g/m2 is applied to the reverse surface of the polyvinyl alcohol film, said polyvinyl alcohol film is laminated to a base paper, an aluminum deposition layer of a transfer foil obtained by vacuum deposition of aluminum is transferred to the polyvinyl alcohol film, and a printed layer is formed by printing on the polyvinyl alcohol laminated paper.

This disclosure relates to a resin-impregnated, opaque, cellulose pulp-based sheet comprising an inorganic particle, wherein the inorganic particle comprises at least about 0.002% of tungsten, based on the total weight of the inorganic particle, and has a photostability ratio (PSR) of at least about 2, as measured by the Ag⁺ photoreduction rate, and color as depicted by an L* of at least about 97.0, and b* of less than about 4. The disclosure also relates to paper laminates prepared from these resin-impregnated, opaque, cellulose pulp-based sheets.

The invention relates to a titanium dioxide particle with high opacity and UV-greying resistance comprising two silica coats and at least one alumina coat, to a method for the obtaining the same, and to the use of said particle in a method for obtaining a decorative paper laminate or a décor foil. The present invention further pertains a decorative paper laminate or a décor foil containing said coated titanium dioxide particle.

The invention relates to a staggered iron core oil passage structure. Oil passages are arranged inside a core column, an upper iron yoke and a lower iron yoke of an iron core, and a plurality of laminated paper boards are vertically and straightly placed inside the upper iron yoke and the lower iron yoke; laminated paper boards are alternately adhered onto silicon steel sheets on two sides of the core column in a 45-degree inclination manner inside the core column respectively, the laminated paper boards inside the iron column are arranged in a staggered manner, the directions of the inclination angles of the laminated paper boards adhered to two sides of the iron core are opposite, and the laminated paper boards of the iron column in the middle and the laminated paper boards of the upper iron yoke and the lower iron yoke are staggered at intervals at the joint positions of the iron column and the upper and the lower iron yokes, so that smoothness of the oil passages is guaranteed. The spacing distances among the laminated paper boards are equal. The structure adopts the design of the oil passages with 45-degree inclination angles in a transformer iron core, the oil passages are staggered to form irregularly-shaped oil passages, and finally a vortex oil flow is realized; through the structure, heat inside the transformer iron core in operation can be well taken out, and integral temperature rise of the iron core is effectively reduced. Compared with an ordinary axial or radial oil passage product, the temperature of the iron core can be reduced by more than 3K.