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High-covering black matte silk-screen printing ink for PET base material

A black matte, silk-screen ink technology, applied in the field of ink, can solve problems such as unfavorable notebook computer control, reduced process yield, complex process, etc., and achieves excellent covering performance, reduced gloss, and high finish.

Active Publication Date: 2017-01-04
SUZHOU BETELY POLYMER MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two main disadvantages: ①The process is more complicated, requiring two silk screens, time-consuming operation and low efficiency
②Thicker printing film thickness will easily lead to a decrease in the yield rate of the subsequent process, especially in the punching section, which is prone to edge bursting. If the printing film layer is thicker, it is not conducive to the control of notebook computers on ultra-thin

Method used

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  • High-covering black matte silk-screen printing ink for PET base material
  • High-covering black matte silk-screen printing ink for PET base material
  • High-covering black matte silk-screen printing ink for PET base material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] By weight, get 45 parts of solvent DBE, 8 parts of dispersant (German BYK-163), add 12 parts of solid polyester resin (Korea SK ES100) and solid acrylic modified polyester resin (Shanghai Lanyi S-800) 12 parts, carbon black 18 parts, iron oxide black 6 parts, stir at 1000 rpm for 2 hours at high speed, after stirring evenly, pass it through the sand mill for four times, and the air pressure of the sand mill for the first time : 0.4mpa, the air pressure of the second, third, and fourth times is 0.2mpa; add 1.5 parts of PMMA wax powder, 0.8 parts of silicone defoamer (BYK-141, Germany), and silicone fluid Leveling agent (German BYK-333) 0.4 parts, disperser to make it evenly dispersed, sand mill sanding once, the sand mill air pressure is 0.4mpa; obtain PET base material with high covering black matte screen printing ink.

[0039] The carbon black is medium pigment carbon black, the oil absorption value is 300, and the average particle diameter is 25nm; the average partic...

Embodiment 2

[0042] In parts by weight, take 50 parts of solvent DBE, 8 parts of BYK-163 dispersant, add 14 parts of solid polyester resin, 14 parts of solid acrylic modified polyester resin, 16 parts of carbon black, and 6 parts of iron oxide black in the dispersed state , 1000 revolutions per minute and high-speed stirring for 2 hours. After stirring evenly, pass through the sand mill for four times. Add 1.5 parts of PMMA wax powder, 0.8 parts of silicone defoamer (BYK-141, Germany), and 0.4 parts of silicone leveling agent (BYK-333, Germany) to the finished sanding product, and disperse it with a disperser. Evenly, the sand mill is sanded once, and the air pressure of the sand mill is 0.4mpa; the high-covering black matte screen printing ink for PET substrates is obtained. The carbon black is medium pigment carbon black with an oil absorption value of 300 and an average particle diameter of 25nm; the average particle diameter of the iron oxide black is 0.40 μm and an oil absorption valu...

Embodiment 3

[0045] In parts by weight, get 40 parts of solvent DBE, 8 parts of dispersant (Byk Chemical BYK-163), add 12 parts of solid polyester resin, 12 parts of solid acrylic modified polyester resin, and 16 parts of carbon black in the dispersed state , 8 parts of iron oxide black, 1000 revolutions per minute and high-speed stirring for 2 hours, after stirring evenly, pass through the sand mill for four times, the air pressure of the sand mill for the first time: 0.4mpa, the second, third and fourth times the air pressure is equal 0.2mpa; add 1.5 parts of PMMA wax powder, 0.8 parts of silicone defoamer (BYK-141, Germany), and 0.4 parts of silicone leveling agent (BYK-333, Germany) to the above sanded finished product , the dispersing machine makes it disperse evenly, and the sand mill is sanded once, and the air pressure of the sand mill is 0.4mpa; Obtain the black matte screen printing ink with high covering for PET substrate.

[0046] The carbon black is a medium pigment carbon bla...

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Abstract

The invention discloses high-covering black matte silk-screen printing ink for a PET base material. The high-covering black matte silk-screen printing ink for the PET base material is prepared by the following steps of: mixing a solvent DBE with a dispersing agent, and dispersing; then sequentially adding solid polyester resin, solid acrylic acid modified polyester resin, carbon black and iron oxide black; stirring the ingredients uniformly to obtain a mixture; grinding the mixture; adding PMMA wax powder, an organic silicon antifoaming agent and an organic silicon leveling agent into the ground mixture; and uniformly dispersing and grinding the ingredients to obtain the high-covering black matte silk-screen printing ink for a PET base material. In the high-covering black matte silk-screen printing ink for the PET base material disclosed by the invention, the composition is reasonable, the components are in good coordination, the overall performance of the system is excellent, the viscosity is suitable for silk-screen printing, and the storage performance is good. In the system disclosed by the invention, the dosage of the components such as carbon black and matting powder is not increased, and adverse impact on the appearance and shading property of the product is avoided; moreover, only through once printing, the shading requirement of the product is met with thickness of 5 microns, and thus industrial application is facilitated.

Description

technical field [0001] The invention relates to the technical field of inks, in particular to a high-covering black matte screen printing ink for PET substrates. Background technique [0002] The molecule of PET is a linear polymer of highly symmetrical aromatic rings, which is easy to be oriented and crystallized, has high strength, good fiber-forming and film-forming properties, a crystallinity of 40% to 60%, and a slow crystallization speed. Pure PET has wear resistance, low friction, low water absorption and high dimensional stability, but its mechanical properties, heat resistance and impact performance are poor. After glass fiber reinforcement, the mechanical properties and heat resistance of PET are greatly improved, and can be used in engineering plastics. [0003] Polyethylene terephthalate (PET) is a polymer made by the direct esterification method of polyethylene terephthalic acid and ethylene glycol or the transesterification method of polydimethyl terephthalate...

Claims

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Application Information

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IPC IPC(8): C09D11/104C09D11/107
Inventor 彭胜欧阳旭频高显波
Owner SUZHOU BETELY POLYMER MATERIALS CO LTD
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