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High-pressrun waterless offset printing plate and preparation method thereof

A technology of printing endurance and water glue, applied in coatings, conductive coatings, protein coatings, etc., can solve the problems of easy adhesion of dirt on the protective adhesive layer, easy dirtiness of printed materials, and easy wear of the silica gel layer. Good dust and light transmittance, not easy to get dirty, not easy to be damaged

Inactive Publication Date: 2020-10-30
柳州市盛杰彩印有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems that the protective rubber layer of waterless offset printing plates is easy to adhere to dirt, uneven thickness, insufficient light transmission, and the printed matter is easy to get dirty, and the ink skin is difficult to clean during printing, and the silica gel layer is easy to wear Problems leading to low printing force, providing a waterless offset printing plate with high printing force and its preparation method

Method used

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  • High-pressrun waterless offset printing plate and preparation method thereof
  • High-pressrun waterless offset printing plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A waterless offset printing plate with high printing resistance, comprising the following raw materials in parts by weight: 11 parts of peach gum, 42 parts of hydrochloric acid solution, 110 parts of absolute ethanol, 31 parts of guanidine salt ionic liquid, octyl polymethicone 5 parts of alkane, 1.5 parts of graphene oxide, 0.4 parts of coconut shell extract, 0.05 parts of di-tert-butyl peroxide, 20 parts of sumac wax, 4 parts of pigskin, 42 parts of limonene, N-methyl-2-pyrrolidone 12 parts, 1.1 parts of silicon nitride powder, 0.04 parts of carbodiimide, 4 parts of tamarind gum, 3 parts of cycloolefin copolymer and 1.5 parts of polytetrafluoroethylene superfine powder.

[0038] Wherein, the guanidine salt ionic liquid comprises the following raw materials in parts by weight: 23 parts of 1-ethyl-3-guanidinothiourea hydrochloride, 52 parts of ethanol aqueous solution, 2 parts of oxalic acid, 4 parts of levulinic acid, n-hexane 21. 3 parts of water and 15 parts of anhyd...

Embodiment 2

[0052] A waterless offset printing plate with high printing resistance, comprising the following raw materials in parts by weight: 21 parts of peach gum, 60 parts of hydrochloric acid solution, 200 parts of absolute ethanol, 49 parts of guanidine salt ionic liquid, octyl polymethicone 17 parts of alkane, 3.5 parts of graphene oxide, 1.6 parts of coconut shell extract, 0.4 parts of di-tert-butyl peroxide, 30 parts of sumac wax, 14 parts of pigskin, 66 parts of limonene, N-methyl-2-pyrrolidone 22 parts, 3.1 parts of silicon nitride powder, 0.14 parts of carbodiimide, 14 parts of tamarind gum, 7 parts of cycloolefin copolymer and 3.5 parts of polytetrafluoroethylene ultrafine powder.

[0053] Wherein, the guanidinium salt ionic liquid comprises the following raw materials in parts by weight: 33 parts of 1-ethyl-3-guanidinothiourea hydrochloride, 70 parts of ethanol aqueous solution, 12 parts of oxalic acid, 10 parts of levulinic acid, n-hexane 39. 15 parts of water and 25 parts o...

Embodiment 3

[0067] A waterless offset printing plate with high printing strength, comprising the following raw materials in parts by weight: 13.5 parts of peach gum, 46.5 parts of hydrochloric acid solution, 133 parts of absolute ethanol, 35.5 parts of guanidinium salt ionic liquid, octyl polymethicone 8 parts of alkane, 2 parts of graphene oxide, 0.7 parts of coconut shell extract, 0.14 parts of di-tert-butyl peroxide, 23 parts of sumac wax, 6.5 parts of pigskin, 48 parts of limonene, N-methyl-2-pyrrolidone 14.5 parts, 1.6 parts of silicon nitride powder, 0.05 parts of carbodiimide, 6.5 parts of tamarind gum, 4 parts of cycloolefin copolymer and 2 parts of polytetrafluoroethylene superfine powder.

[0068] Wherein, the guanidinium salt ionic liquid comprises the following raw materials in parts by weight: 25.5 parts of 1-ethyl-3-guanidinothiourea hydrochloride, 56.5 parts of ethanol aqueous solution, 4.5 parts of oxalic acid, 5.5 parts of levulinic acid, n-hexane 25.5, 6 parts of water a...

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Abstract

The invention provides a high-pressrun waterless offset printing plate and a preparation method thereof, and particularly relates to the technical field of printing plates. The waterless offset printing plate is prepared by taking a silica gel layer composition prepared by taking peach gum extract and octyl polymethylsiloxane as main raw materials as a silica gel layer and taking protective glue prepared by taking lacquer tree wax, pigskin and tamarind gum as main raw materials as a protective glue layer. The printing plate is good in dust resistance and light transmission, tough, wear-resistant and good in insulativity, and the printing resistance can reach more than 140000 prints, so that printed matters are not easy to get dirty and fall off from a screen. The method is stable and controllable in process, easy to implement and suitable for large-scale production.

Description

【Technical field】 [0001] The invention relates to the technical field of printing plates, in particular to a high-run waterless offset printing plate and a preparation method thereof. 【Background technique】 [0002] Waterless offset printing is a flat gravure printing technology. It does not use water or traditional fountain solution during printing, but uses a printing plate with a non-ink-friendly silicone rubber surface, special ink and a set of temperature control system. Because of the use of fountain solution in traditional offset printing, water is involved in the printing process. If the "water-ink balance" is not well grasped, it will bring many quality problems, and the fountain solution and developer used contain volatile organic compounds. It will be discharged into the air during the printing process, causing environmental pollution. Compared with traditional offset printing technology, waterless offset printing has the advantages of excellent printing effect, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D191/06C09D105/00C09D183/04C09D189/00C09D145/00C09D127/18C09D7/65C09D7/61C09D7/63C09D7/20C09D5/25C09D5/24
CPCC08L2201/04C08L2205/025C08L2205/035C09D5/00C09D5/24C09D191/06C09D7/20C09D7/61C09D7/63C09D7/65C08L5/00C08L83/04C08L89/00C08L45/00C08L27/18C08L1/02C08L97/005C08K13/02C08K3/042C08K5/14C08K3/34C08K5/29
Inventor 张志安胡荣根
Owner 柳州市盛杰彩印有限公司
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