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41results about How to "Excellent curl resistance" patented technology

High-lustre mirror transferring coated paper as well as production technology and production equipment thereof

The invention discloses a high-lustre mirror transferring coated paper as well as a production technology and production equipment thereof. The high-lustre mirror transferring coated paper comprises a paper layer, a paper glaze coating and a paper back coating, wherein the thickness of the paper layer is 80-350mu m, the paper glaze coating is a styrene-acrylate resin painting layer with the thickness of 0.5-2mu m, and the paper back coating is the styrene-acrylate resin painting layer with the thickness of 0.5-2mu m. The invention also discloses a production technology and production equipment thereof of the transferring coated paper. Body paper is dried after being subjected to back coating processing to obtain base paper; a coated film and the base paper simultaneously enter composite equipment to obtain composite paper; then the composite paper is dried, cooled, rolled and stripped to obtain a basic film and transfer paper; and finally, the base film and the transfer paper are respectively rolled. The coated paper disclosed by the invention has the characteristics of high-lustre mirror, high smoothness, high anti-curling performance and the like and is environmentally friendly, good printing effect can be brought, the paper back coating is processed to eliminate the phenomenon that the back fluffs, and better anti-curling performance is provided for the paper.
Owner:云南伦恩纸业有限公司

Manufacturing method of anti-curl collar

The invention discloses a manufacturing method of an anti-curl collar, comprising the following steps: a, setting thermoplastic adhesive material between a top collar and an under collar; b. hot pressing the thermoplastic adhesive material for 5-15seconds at the temperature of 90 DEG C-200 DGE C and under the pressure of 1.5-6.5bar, carrying out cooling after the thermoplastic adhesive material melting, immersing and bonding the upper surface and the lower surface of the contacting material to form the anti-curl collar; the thermoplastic adhesive material is selected from any one of polyamide, polyester, polyolefin, polyurethane and ethylene acetic acid ethylene copolymer. The invention has the advantages that manufacturing technology is simple and convenient, the collar has good anti-curl effect, and the collar point can keep straight and dose not curl after repeated washing.
Owner:GUANGDONG ESQUEL TEXTILES CO LTD

Bag for automatic cheese canning

ActiveCN103042730AMeet the storage requirementsMeet the requirements of automated canning processSynthetic resin layered productsBagsEdge structureMoisture barrier
The invention discloses a bag for automatic cheese canning, which comprises a bag body with an insert edge structure; the bag body comprises a front surface, a back surface and insert edges on the left side and the right side; a certain width of bottom sealing line penetrating through the front surface, the back surface and the two insert edges is formed at the bottom of the bag body; a lower oblique angle is formed at the lower part of the bag body; the bag body consists of layered co-extrusion blown thin films with symmetrical structures of which the number of layers is seven-eleven; and each layered co-extrusion blown thin film is provided with an inner heat-sealed moisture barrier layer, an inner bonding layer, an inner oxygen barrier layer, an incense keeping core layer, an outer oxygen barrier layer, an outer bonding layer and an outer heat-sealed moisture barrier layer from inside to outside in sequence. The bag has the beneficial effects that a three-dimensional structure of the bag body is stable, the inner layer friction performance and the outer layer friction performance of the bag body are properly set, used materials are saved, and the strength is high. The bag is particularly suitable for automatic cheese canning.
Owner:SUNRISE PACKAGING MATERIAL JIANGYIN CO LTD

Curable composition

[Problem] The problem addressed by the present invention is to provide a curable composition having superior hardness, adhesion, and flexibility of a cured film thereof, having greater superiority in curl resistance, and superior storage stability such that clouding does not arise even after long-term storage. [Solution] The curable composition contains a urethane (meth)acrylate-containing reaction product (A) resulting from reacting: a compound (a1) that is the result of adding (meth)acrylic acid to pentaerythritol and that has a hydroxyl value of 180-300 mgKOH / g; and a polyvalent isocyanate compound (a2).
Owner:TOAGOSEI CO LTD

Opening intensive type printed circuit board covering film

Disclosed in the invention is an opening intensive type printed circuit board covering film comprising a polyimide film, an adhesion layer, and a piece of release paper. The release paper is formed by a release agent layer, a first PE layer, a body paper layer and a second PE layer successively. The thickness of the release agent layer is less than 1 micrometer, the thickness of the first PE layer is 10 to 20 micrometers, the thickness of the body paper layer is 40 to 60 micrometers, the thickens of the second PE layer is 10 to 30 micrometers, and the thickness of the release paper is 90 to 100 micrometers; and the basis weight of the release paper is 40 to 60g/m<2> and the release force of the release paper is 2 to 8g/5cm. Because the release paper with low basis weight, low thickness and low release force is used, the covering film has performance of low basis weight and low hygroscopicity and the excellent curling-resistant performance, so that the covering film is especially suitable for the high-density small hole opening and half-cutting printed circuit board. Therefore, the environment protection requirement is met; the environment pollution is reduced; the paperless trend of the covering film in the industry is followed; and the sustainable development demand can be satisfied.
Owner:KUSN APLUS TEC CORP

Anti-curling image recording material and preparation method thereof

The invention discloses an anti-curling image recording material and a preparation method thereof. The image recording material comprises a support body and an image recording layer arranged on one side of the support body, the image recording layer is obtained by drying a coating liquid, and based on the total mass of the coating liquid, the coating liquid comprises inorganic particles with the content of 8-33 wt%, and a solvent with the content of 10-30 wt%, a water-based adhesive, wherein the content of the water-based adhesive is 1.5-7.5 wt%; the content of the silane coupling agent is 1 to 5 weight percent; a cross-linking agent, wherein the content of the cross-linking agent is 0.01 to 0.1 wt%; an organic solvent, wherein the content of the organic solvent is 6-20 wt%; and deionized water, wherein the content of the deionized water is 54.49 wt%-83.49 wt%. Therefore, the shrinkage internal stress, generated in the drying process, of the coating can be obviously reduced, and the hidden danger of curling in the drying process is effectively eliminated; in addition, the coating process of the curling control layer can be omitted, the curling resistance of the image recording material is improved, the production cost can be remarkably reduced, and large-scale production of the image recording material is facilitated.
Owner:乐凯胶片股份有限公司

Preparation method of water-based leather release paper

The invention discloses a preparation method of water-based leather release paper, which comprises the following steps: placing body paper between a pattern roller and an auxiliary roller, spraying a film spraying material between the pattern roller and the body paper through a film spraying head, applying pressure to the body paper sprayed with the film spraying material through the pattern roller so as to form a film spraying material layer with a pattern structure on the surface of the body paper, so as to obtain semi-cured release paper, wherein the film spraying direction of the film spraying head does not coincide with the tangential direction of a contact point of the body paper on the pattern roller, and the film spraying head is arranged on the side away from the pattern roller; and cooling the semi-cured release paper through a cooling roller to obtain the water-based leather release paper. By adjusting the positions of the film spraying head and the pattern roller, the curing of resin on paper can be more uniformly heated, and then through the step-by-step cooling cooperation of the pattern roller and the cooling roller, the temperature is slowly reduced, so that the obtained release paper has a better anti-curling effect, and the gloss and haze of patterns meet the requirements; and the quality stability of the synthetic leather is ensured.
Owner:SHENZHEN WANJI TECH CO LTD
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