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Composite sheet structure for decoration and preparation method of composite sheet structure

A composite sheet and sheet technology, applied in chemical instruments and methods, lamination devices, synthetic resin layered products, etc., can solve the problems of scratch resistance, easy deformation, migration of small molecules, etc., and achieve a bright surface. Effect

Active Publication Date: 2015-05-06
张家港保税区康得菲尔实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies in the existing PVC sheet decoration materials, and prepare a composite sheet with PET / PVC as the main material for decoration by hot-pressing the hardened PET pre-coated film and the PVC sheet to improve the performance of PVC. The sheet itself is easily deformed by heat, has poor tear resistance, the surface is not scratch-resistant, poor weather resistance and has defects such as small molecule migration, thereby expanding the application range of PVC resin in the fields of home appliance panels, furniture panels and architectural decoration.

Method used

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  • Composite sheet structure for decoration and preparation method of composite sheet structure

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preparation example Construction

[0040] The preparation method and process of the composite sheet are as follows in sequence: polyester film hardening treatment→preparation of polyester precoat film→sticking treatment of polyester precoat film→polyester precoat film and PVC sheet hot-compression compounding. The specific process is as follows:

[0041] 1. Polyester film hardening treatment

[0042] The polyester film layer (2) is a biaxially oriented polyester film (BOPET) with a thickness of 25-150 μm, prepared through a biaxially oriented production line or purchased from polyester film manufacturers such as Tianjin Wanhua and Foshan Dupont. The surface hardened layer (1) is a UV photocurable resin coating, the surface hardness of which is above 2H, and the thickness is 5-15 μm. The composition ratio is: acrylate monomer 75%-85%, reactive diluent 5%-10%, photoinitiator 5%-8%, other additives 1%-2% (including leveling agent, defoamer and wetting agents, etc.). Firstly, the polyester film base material is un...

Embodiment 1

[0050] 1. Polyester film hardening treatment

[0051] First, the BOPET substrate of 25μm×1500mm×6000m is unwound on the UV coating line and completely flattened, and the oven is raised to the set temperature (70°C) to ensure the coating quality; secondly, 80% acrylate monomer , 10% reactive diluent, 8% photoinitiator, 0.5% leveling agent and 1.5% wetting agent are mixed evenly and transferred to the glue tank of the UV coating production line; finally, turn on the UV lamp and adjust the UV power to 400mJ / cm2, the polyester film is gravure coated and rolled, so as to obtain a 1500mm × 6000m polyester film with a hardened layer of 8 μm.

[0052] 2. Preparation of polyester precoating film

[0053] First, the 33 μm thick hardened polyester film base material is unwound and completely flattened on the extrusion compounding line, and the polyethyleneimine aqueous solution with a solid content of 5% is configured, added to the glue tank, and the oven is raised to the set temperatur...

Embodiment 2

[0060] 1. Polyester film hardening treatment

[0061] Firstly, the 250μm×1300mm×4000m PETG substrate is unwound and completely flattened on the UV coating line, and the oven is raised to the set temperature (70°C) to ensure the coating quality; secondly, 85% acrylate monomer , 18% reactive diluent, 5% photoinitiator, 0.5% leveling agent and 1.5% wetting agent are mixed evenly and transferred to the glue tank of the UV coating production line; finally, turn on the UV lamp and adjust the UV power to 350mJ / cm2, the polyester film is gravure coated and rolled up, so as to obtain a 1300mm * 4000m polyester film with a 10μm hardened layer.

[0062] 2. Preparation of polyester precoating film

[0063] First, the 260 μm thick hardened polyester film base material is unwound and completely flattened on the extrusion compounding line, and the polyethyleneimine aqueous solution with a solid content of 5% is configured, added to the glue tank, and the oven is raised to the set temperatur...

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Abstract

The invention discloses a composite sheet structure for decoration by taking PET / PVC as main materials, wherein the composite sheet structure structurally comprises a PVC sheet (6), a tackifying layer (5) on the PVC sheet (6), a hot melting glue layer (4) on the tackifying layer (5), a priming coat layer (3) on the hot melting layer (4), a polyester film layer (2) on the priming coat layer (3) and a surface hardening layer (1) on the polyester film layer (2). The PVC sheet disclosed by the invention cannot deform thermally; the laminated PET surface hardening layer can enable the surface hardness of the PVC sheet to achieve 2H above, and the surface is relatively bright; the composite sheet structure can absorb ultraviolet rays, slow down the light aging speed of the PVC sheet, improve the weather resistance of PVC resin, and prolong the service life, can obstruct micromolecule additives, such as a plasticizing agent in the PVC sheet, from migrating toward the surface, reduce harm to human bodies, and also can greatly improve the tear resistance performance and toughness of the PVC sheet, and improve the mechanical intensity of the PVC sheet.

Description

technical field [0001] The invention relates to the fields of home appliance panels, furniture panels and building decoration materials, in particular to a composite sheet structure with decorative PET / PVC as the main material. Background technique [0002] Polyvinyl chloride (PVC) is one of the five general-purpose plastics, and its output is second only to polyethylene (PE) and polypropylene (PP). PVC resin is white or light yellow powder, has excellent properties such as flame retardancy, insulation, chemical corrosion resistance, etc. It is cheap and easy to process and shape, and is widely used in building materials, light industry, agriculture and other fields. [0003] PVC resin is mixed with processing aids such as plasticizers and stabilizers in a certain proportion, and can be calendered into PVC sheets of various thickness specifications for packaging and decoration materials. PVC is a polar material, and inorganic fillers such as pigments are well dispersed in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B27/36B32B27/30B32B7/12B32B27/20B32B37/06B32B37/14
CPCB32B7/12B32B27/06B32B27/20B32B27/304B32B27/36B32B37/06B32B37/14
Inventor 钟玉张涛曹华董子尧
Owner 张家港保税区康得菲尔实业有限公司
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