44results about "Curl-resistant paper" patented technology

Print media, when rolled tightly often produces a high degree of curl when removed from a roll form. The stiffer the media, the more likely the tenancy to curl. On the other hand, media that is too thin will be too floppy for conventional handling. Incorporating some stiffening strands running along the axis of a roll of paper substrate allow the media to be roll relatively tightly but give the media a tendency to readily de-curl once it is unrolled. These strands ideally have a pitch of approximately 200 microns. The ribs result in material of greater stiffness across the width of the media than along the length and maintain adequate stiffness for handling and viewing of the printed media.

A high strength specialty paper comprising at least one nonwoven web layer is provided. The nonwoven web layer comprises a plurality of first fibers, a plurality of cellulosic fibers, and a binder. The first fibers comprise a water non-dispersible synthetic polymer and have a different configuration and/or composition than the cellulosic fibers. The first fibers have a length of less than 25 millimeters and a minimum transverse dimension of less than 5 microns. Also disclosed is a process for producing the first fibers and the multicomponent fibers from which they are derived.

The present invention provides an anti-curl agent containing an amide compound of specific structure and molecular weight, an ink jet ink containing the amide compound, a method for ink jet recording to form images by ejecting the ink, and a method for reducing curl of recording media using the ink. The anti-curl agent of the present invention can reduce shape changes of a printed paper with a lapse of time, i.e., the curl phenomenon, tending to occur in particular with a plain paper printed over the entire surface, without deteriorating image quality.

The invention discloses a process for manufacturing flat vulcanized fibre. The process comprises the following steps of: performing gelling treatment on base paper by using solution of zinc chloride according to the preset temperature condition; cramming a plurality of gelled raw vulcanized fibre flat plates into grids to perform ageing treatment; performing desalination on the aged raw vulcanized fibre by using the solution of zinc chloride with degressive relative concentration; and cleaning, drying and shaping the desalted raw vulcanized fibre flat plates sequentially. The manufacturing process can overcome the defects of non-uniform shrinkage, easy deformation, easy cracking, low safety and the like in the prior art so as to realize the advantages of uniform shrinkage, no deformation, no cracking and high safety.

An object of the present invention is to provide recording paper and label paper with excellent waterproof properties, reduced curling from heat when used as recording paper in a heat-fixing type electrophotographic printer, a heat-fixing type electrophotographic copier or a direct heat-sensitive printer, excellent paper delivery properties, and capable of providing continuous printing of multiple sheets. A further object of the invention is to provide recording paper and label paper with excellent waterproof properties as the base materials of masking seals and re-covering-preventing labels, and requiring no special process to start peeling. The present invention provides recording paper comprising resin film (A) containing a thermoplastic resin, and at least one of inorganic fine powder and an organic filler, wherein the heat of crystallization is 60 J/cm³ or lower, and label paper using the same.

An electrophotographic recording sheet having, on a water-resistant support, a toner-receiving layer containing a liphophilic polymer antistatic agent with a specific surface resistivity of from 1×10⁷ to 9×10¹²Ω. This electrophotographic recording sheet is excellent in recording quality, fixability, water resistance, durability, color printability and continuous printability.

Disclosed herein are, for instance, coated substrates comprising cellulose-based substrates with surface-treated aqueous-based polymer coatings. In some embodiments, the aqueous-based polymer coatings are surface-treated using corona treatment. Methods of making and using the same are also disclosed.

In the laminated film, a surface layer of a polyolefin resin or a polyester resin and an adhesive layer which is made of a polyolefin resin containing an ethylene copolymer of at least 5 wt.% of a comonomer content and is stuck to the pulp molding are laminated through an intermediate layer of a polyolefin resin.

The invention relates to section paper angle protector, paper pad and relative producing method, which provides a packing material used to pack section materials. Wherein, the paper angle protector and the paper pad are made from recycled paper (vellum or newspaper or/and yellow plate), wooden slurry plate, waterproof agent, and oil-proof agent. Said producing method comprises: processing the recycled paper and wooden slurry plate, with dipping, breaking, and adding waterproof agent and oil-proof agent to prepare slurry, and via molding and vacuum slurry adsorption, to shape; molding it with molding module in high temperature and high pressure; cutting edge to attain final product. The invention uses pulp as raw material, with lower cost. And it adds waterproof agent and oil-proof agent to attain waterproof property, flexibility and better anti-drawing property. The invention can be decomposed and nontoxic. It has lower producing cost and high efficiency, while the product can be used to pack steel, wood, stone and ceramic.

A method for increasing the long term storageability of a cellulosic paper or paperboard product. The method includes providing a paper or paperboard product made from cellulosic fibers having a basis weight ranging from about 80 to about 300 pounds per 3000 square feet. A holdout material is applied to at least one surface of the paper or paperboard product. The web is then coated with an ink receptive material selected from the group consisting of an aqueous acrylic polymer coating material, an aqueous biocidal agent and a combination of aqueous acrylic polymer coating material and aqueous biocidal agent and dried to provide a paper or paperboard product having enhanced long term storageability. Webs made according to the invention are suitable for making file folders which exhibit improve long term storageability by resisting damage from moisture and/or biological activity.

The invention relates to the technical field of paper making and particularly discloses a method for producing continuous vulcanized fiber paper. The method comprises the following steps: (1) grindingplant fiber finished product pulp through a grinder to loosen the plant fiber pulp; (2) delivering the loosened plant fiber pulp into a zinc chloride solution spray device, performing zinc chloride solution spraying, and performing solid-liquid stirring for 20-40 minutes; (3) performing pulp spraying and press-molding to form a vulcanized fiber paper backing; (4) performing aging treatment; (5) performing desalination treatment; and (6) performing washing, drying and curling to form a vulcanized fiber paper finished product. The vulcanized fiber paper production method does not relate to material selection of body paper or gluing adhesion of multiple layers of the body paper, so that a vulcanized fiber paper produced by the method does not have the layering problem due to deficient adhesion of the body paper, and has high quality. Furthermore, an existing vulcanized fiber paper production method is overturned, the vulcanized fiber paper is produced directly from paper pulp, the process for producing body paper of vulcanized fiber paper is reduced, and the production flow of vulcanized fiber paper is shortened.

The tear-off paper processing method includes dash cutting or perforating step. During the dash cutting or perforating step, two intact fringes of at least 1 mm width are retained and several intact narrow bands of at least 2 mm width are retained. The intact parts are cut down in the last cutting step. The said processing method makes the paper capable of bearing the processing tension before being processed into tear-off paper product.

A multifunctional corrugated paper is made up through providing needed raw materials, cleaning by special treating to obtain clean pulp, adding at least one functional assistant, and making paper. Its advantages are natural degradation, high light-blocking performance, and no pollution. It can be used as the carrier of antagon microbes for different agricultural purposes.