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Decorative sheet and manufacturing method thereof

A manufacturing method and technology of decorative sheets, which are applied in the directions of decorations, chemical instruments and methods, transportation and packaging, etc., can solve problems such as poor appearance, and achieve excellent elongation and excellent embossing maintenance.

Active Publication Date: 2021-04-27
LG HAUSYS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As described above, usually, the formed decorative sheet is applied to a product by attaching an adhesive film or the like to one side thereof through a vacuum forming process or the like. A certain amount of air gap is formed between the adhesive surfaces, so that in the process of applying the decorative sheet to the product by vacuum forming, etc., some embossing is eliminated or the air gap is likely to cause poor appearance due to thermal expansion. The problem

Method used

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  • Decorative sheet and manufacturing method thereof
  • Decorative sheet and manufacturing method thereof
  • Decorative sheet and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0140] The base material was prepared by mixing and stirring 100 parts by weight of acrylonitrile-butadiene-styrene, 20 parts by weight of acrylic impact reinforcing material, 1 part by weight of lubricant, 1 part by weight of antioxidant and 1 part by weight of pigment Layer-Forming Composition Next, a substrate layer having a thickness of 200 μm was formed by using the above-mentioned composition for substrate layer formation by a rolling method.

[0141] Next, a printed layer with a thickness of 3 μm was formed by a gravure printing method using urethane ink on the upper surface of the base layer, and a surface layer with a thickness of 10 μm was formed on the upper surface of the printed layer by a slot die method to form a Flake layer.

[0142] And, as an ultraviolet curing compound, 70.5% by weight of urethane acrylate oligomer, 15% by weight of isobornyl acrylate monomer, 10% by weight of 2-hydroxyethyl acrylate monomer, 0.5% by weight % photoinitiator and 4% by weight...

experiment example 1

[0151] Experimental Example 1: Embossing retention rate

[0152] Detection method: using a confocal microscope (DCM3D, LEICA) under the conditions of Magnification: x100, Stitching3X3, the average value of the embossing that exists on the upper surface of each decorative sheet according to the above-mentioned Example 1 and the above-mentioned Comparative Examples 1 and 2 is produced. Depth, M i Tested. Next, apply heat and pressure to each of the above-mentioned decorative sheets at a temperature of 135° C. and a pressure of 290 Pa for 2 minutes, and then, after standing at room temperature for 10 minutes, use a confocal microscope to examine the particles present on the upper surface under the same conditions. Average depth of embossing, M f Tested.

[0153] The above M obtained by this i and above M f Values ​​were substituted into the following formula 1 to calculate the embossment retention rate.

[0154] Formula 1

[0155] Embossing maintenance rate (%) = 1-(M f -...

experiment example 2

[0156] Experimental Example 2: Elongation

[0157] Detection method: according to JIS K 6251-1 conditions, use a universal testing machine (Zwick-Roell Universal Testing Machine, Z100) to perform detection, and calculate the elongation according to the following formula 2, specifically, calculate the elongation under heating conditions. Specifically, after standing in a high-temperature chamber at a temperature of 35°C for 1 minute and taking it out, the length was measured before stretching at normal temperature, and then stretched at normal temperature to measure the length at break.

[0158] Tensile conditions: dumbbell-shaped test piece, tensile speed: 600mm / min, gauge length: 60mm

[0159] Formula 2

[0160] Elongation under heating conditions (%) = (length at break - initial length) / initial length x 100

[0161] In the above formula 2, the above-mentioned initial length is the length detected before stretching under normal temperature conditions after being placed in...

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Abstract

The present invention provides a decorative sheet and a manufacturing method thereof. The decorative sheet includes: a thin sheet layer including embossing on the upper surface and a lower surface respectively; The upper face of the support layer includes embossments corresponding to the embossments included on the lower face of the aforementioned sheet layer.

Description

technical field [0001] The present invention relates to a decorative sheet and its manufacturing method. Background technique [0002] The decorative sheet applied to the surface of the interior and exterior materials of automobiles, home appliances, furniture, etc. is a part that is continuously confirmed and touched by the occupants or users with the naked eye. Therefore, the design level becomes one of the important elements . [0003] Usually, in order to express aesthetic feeling or texture, embossed patterns or concave-convex patterns can be provided on the surface of decorative sheets, and embossed patterns or concave-convex patterns are usually provided by using embossing rollers or the like. [0004] Such a decorative sheet tends to have better formability as the thickness becomes thinner. When the thickness of the decorative sheet is formed below a predetermined value in consideration of this formability, an embossed pattern or a concave-convex pattern is formed w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B3/30B32B27/18B32B38/06
CPCB32B3/30B32B27/18B32B38/06C09D7/40B32B2451/00B32B2479/00B32B2605/003
Inventor 李汉娜朴志庸李承勋任巨赫
Owner LG HAUSYS LTD