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CN-224224780-U - Correction printing material

CN224224780UCN 224224780 UCN224224780 UCN 224224780UCN-224224780-U

Abstract

The utility model discloses a printing material, which comprises a basal layer and a removable layer which are arranged in a laminated way, wherein the basal layer is selected from any one of paper, a high polymer sheet, a metal sheet and a composite material, and the removable layer comprises an aqueous film forming substance which can be thermally dissociated in a specific environment, and the removable layer can be removed after the aqueous film forming substance is thermally dissociated. When the printing material is used for printing, the substrate layer can be reused after the movable layer is removed, so that the printing cost of a printing enterprise is greatly reduced. The method for preparing the offset material is used for preparing the offset material, and the coating removal method is used for removing the removable layer.

Inventors

  • JIANG LONGJIAN

Assignees

  • 东莞市隽星印刷科技有限公司

Dates

Publication Date
20260512
Application Date
20250614

Claims (12)

  1. 1. A proofreading material, comprising: A substrate layer selected from any one of paper, polymer sheet, metal sheet and composite material, and And the movable layer is arranged on the substrate layer in a stacking way and comprises an aqueous film forming substance, the aqueous film forming substance can be thermally dissociated in a specific environment, and the movable layer can be removed after the aqueous film forming substance is thermally dissociated.
  2. 2. The offset material of claim 1, wherein the aqueous film forming material is selected from at least one of polyurethane resins, acrylic resins, polyvinyl alcohol and its modified resins, polyvinyl oxide resins, starches and their derivatives, polyvinylpyrrolidone, and environmentally responsive block copolymers.
  3. 3. The marking material of claim 1, wherein the particular environment is a wet heating environment and the thermal dissociation is a thermal swelling dissociation.
  4. 4. The marking material of claim 1, wherein the removable layer comprises a foamed material.
  5. 5. The marking material of claim 4, wherein the particular environment is a dry heating environment and the thermal dissociation is a thermal cracking dissociation.
  6. 6. The marking material of claim 4, wherein the specific environment is a wet heating environment and the thermal dissociation is thermal swelling dissociation and thermal cracking dissociation.
  7. 7. The marking material of claim 6, wherein the specific environment is a steam heated environment, and the thermal dissociation is a medium thermal swelling dissociation and a substantially thermal cracking dissociation.
  8. 8. The marking material of claim 4, wherein the particular environment comprises a dry heating environment and a wet heating environment, and wherein the thermal dissociation comprises a low thermal cracking dissociation followed by a medium thermal swelling dissociation.
  9. 9. The offset material of any one of claims 4-8, wherein the foam is selected from at least one of a physical foam, a chemical foam, an inorganic foam, an environmental-friendly foam, and a composite foam.
  10. 10. The offset material according to claim 9, wherein the physical foaming material is selected from any one of volatile liquid, compressed gas, supercritical fluid, foaming microsphere, expanded graphite, vermiculite powder and expanded hexagonal boron nitride, the chemical foaming material is selected from any one of azo foaming material, sulfonyl hydrazone foaming material, carbonate, hydrazine/hydrazone foaming material and reactive foaming material, the inorganic foaming material is selected from any one of carbonate foaming material, metal hydride foaming material and silicate foaming material, the environment-friendly foaming material is selected from any one of bio-based foaming material, HFOs foaming material and natural product foaming material, and the composite foaming material is selected from any one of heat absorption-heat release composite foaming material, acid-base reaction foaming material and metal-organic composite foaming material.
  11. 11. The marking material of claim 9, wherein the foam material has a specific heuristic temperature, the heuristic temperature being between 60 ℃ and 200 ℃.
  12. 12. The marking material of claim 1, wherein the thickness of the removable layer is from 0.001mm to 1mm.

Description

Correction printing material Technical Field The utility model relates to the technical field of materials, in particular to a correction printing material. Background In the prior art, a coating material containing an aqueous film-forming substance (such as aqueous varnish) is widely used for surface treatment of printed matter, and a printed matter layer is protected by forming a coating layer on the surface of the printed matter, and as the printed matter may be subjected to a high-temperature and high-humidity environment of a warehouse or a container in summer, the coating layer is required to have high stability, including excellent high-temperature dissociation resistance and moisture resistance, and serious quality accidents are caused once the properties do not reach standards. To verify its stability, it is generally required to perform an anti-sticking test under a high temperature and high humidity environment of 70 ℃ and 90 ℃, and therefore, how to prevent thermally induced dissociation of a coating containing an aqueous film-forming substance at high temperature is a technical problem that must be overcome by those skilled in the art. In the prior art, foaming materials are widely applied to the field of clothing for preparing foaming graphics and texts, and as the clothing needs to be contacted with water for a long time in the cleaning process and is subjected to a large amount of friction, the foaming graphics and texts are required to have good adhesive force and water resistance, and once the performance does not reach the standard, quality accidents are caused. In the offset printing, gravure printing, silk screen printing or flexography process, the image-text layer formed by printing ink is in direct contact with the proofreading material, and the ink has the characteristics of permeability, thinness of the ink layer and high binding force, so that the image-text layer on the proofreading material cannot be removed, a large amount of proofreading material used in the printing process cannot be reused, and great cost pressure is increased for printing enterprises. Based on this, it is necessary to provide a correction material to solve the above-mentioned problems. Disclosure of utility model A proof material comprising: A substrate layer selected from any one of paper, polymer sheet, metal sheet and composite material, and And the movable layer is arranged on the substrate layer in a stacking way and comprises an aqueous film forming substance, the aqueous film forming substance can be thermally dissociated in a specific environment, and the movable layer can be removed after the aqueous film forming substance is thermally dissociated. In one embodiment, the aqueous film-forming material is selected from at least one of polyurethane resins, acrylic resins, polyvinyl alcohols and modified resins thereof, polyvinyl oxide resins, starches and derivatives thereof, polyvinylpyrrolidone, and environmentally responsive block copolymers. In one embodiment, the specific environment is a wet heating environment and the thermally induced dissociation is a thermally induced swelling dissociation. In one embodiment, the removable layer comprises a foam material. In one embodiment, the specific environment is a dry heating environment and the thermally induced dissociation is a thermally induced cracking dissociation. In one embodiment, the specific environment is a wet heating environment, and the thermally induced dissociation is thermally induced swelling dissociation and thermally induced cracking dissociation. In one embodiment, the specific environment is a steam heated environment, the thermally induced dissociation being a moderate thermally induced swelling dissociation and a substantially thermally induced cracking dissociation. In one embodiment, the specific environment comprises a dry heating environment and a wet heating environment, and the thermal dissociation comprises a low limit thermal cracking dissociation and a medium limit thermal swelling dissociation. In one embodiment, the foaming material is at least one selected from the group consisting of a physical foaming material, a chemical foaming material, an inorganic foaming material, an environment-friendly foaming material and a composite foaming material. In one embodiment, the physical foaming material is selected from any one of volatile liquid, compressed gas, supercritical fluid, foaming microsphere, expanded graphite, vermiculite powder and expanded hexagonal boron nitride, the chemical foaming material is selected from any one of azo foaming material, sulfonyl hydrazine foaming material, carbonate, hydrazine/hydrazide foaming material and reactive foaming material, the inorganic foaming material is selected from any one of carbonate foaming material, metal hydride foaming material and silicate foaming material, the environment-friendly foaming material is selected from any one of bio-based foaming material, HFOs foaming