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A kind of production method of galvanized composite PVC decorative sheet for military and civilian ships

A production method and technology of decorative sheets, which are applied in the production field of galvanized composite PVC decorative sheets for military and civilian ships, can solve problems such as short service life, and achieve the effects of improving service life, ensuring uniformity, and ensuring water content

Active Publication Date: 2018-10-30
SUZHOU YONGFENG DECORATIVE MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ship interior sheets are usually directly dedicated from the existing composite sheets indoors. However, due to the particularity of the ship's surrounding environment (high humidity, high salt, etc.), its service life is short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] This embodiment provides a method for producing galvanized composite PVC decorative sheets for military and civilian ships. The method adopts an automated assembly line for production, and S sticks are used before and after the galvanized sheet and PVC film are laminated (multiple tension rollers are arranged in sequence to make Galvanized sheet or composite decorative sheet and wound into S shape) to adjust the tension, it includes the following steps:

[0016] (a) Pre-treatment: Flatten the galvanized coil to form a galvanized sheet, immerse it in lye, and use a brush to scrub both sides to remove oil and impurities on the surface; that is, use an assembly line to process a whole coil of galvanized coil Slowly feed the galvanized sheet and move it forward. After being immersed in four lye with different concentrations in sequence, the concentration of lye decreases successively (for example, 5~10mol / L, 2~3mol / L, 1~1.5mol / L, L, 0.1~0.5 mol / L sodium hydroxide solution);...

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Abstract

The invention relates to a production method of a galvanized composite PVC (polyvinyl chloride) decorative sheet for dual-use ships.The production method includes the following steps of (a) pretreatment: firstly, leveling a galvanized roll into a galvanized sheet, soaking the galvanized sheet into alkali liquor, and scrubbing two sides of the galvanized sheet with a brush to remove oil fouling and impurities on the surfaces of the galvanized sheet; secondly, soaking the galvanized sheet into hot water with the temperature being 50-80 DEG C, and scrubbing the two sides of the galvanized sheet with the brush; thirdly, putting the galvanized sheet into an oven prior to heating at the temperature of 70-80 DEG C to remove moisture on the surfaces of the galvanized sheet; (2) gluing: coating the upper surface of the galvanized sheet treated in the step (a) with glue, and baking at the temperature of 120-160 DEG C prior to drying at the temperature of 300-350 DEG C to enable the glue to form a film; (c) attachment: attaching a PVC thin film onto the glue film obtained via treatment in the step (b) while the glue film is hot, cooling to 10-30 DEG C, and soaking into water prior to taking out.Uniformity of the surface oxide film of the galvanized sheet is guaranteed, so that service life of the galvanized sheet is greatly prolonged.

Description

technical field [0001] The invention relates to a production method of a composite PVC decorative sheet, in particular to a production method of a galvanized composite PVC decorative sheet for military and civilian ships. Background technique [0002] Polyvinyl chloride (PVC) is one of the five general-purpose plastics, and its output is second only to polyethylene and polypropylene. 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. 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 the PVC matrix, which can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B37/12B32B38/16B32B27/06B32B27/30
CPCB32B27/06B32B27/304B32B37/12B32B38/164
Inventor 高永昌
Owner SUZHOU YONGFENG DECORATIVE MATERIAL CO LTD
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