Low-temperature quick-drying mask silver paste for intaglio printing and preparation method thereof

A gravure printing and low-temperature technology, which is applied in the field of low-temperature quick-drying mask silver paste for gravure printing and its preparation, can solve the problems of low printing efficiency and achieve clear and complete printing patterns, good electrical conductivity, and enhanced bonding strength

Pending Publication Date: 2022-08-05
湖南省国银新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a low-temperature quick-drying mask silver paste for gravure printing and a preparation method thereof, which are used to overcome defects such as low printing efficiency in the prior art

Method used

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  • Low-temperature quick-drying mask silver paste for intaglio printing and preparation method thereof
  • Low-temperature quick-drying mask silver paste for intaglio printing and preparation method thereof
  • Low-temperature quick-drying mask silver paste for intaglio printing and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0052] Preferably, the preparation method of the flake silver powder comprises the following steps:

[0053] S1: to AgNO 3 Add deionized water, stir to dissolve, then add dispersant, stir and mix evenly to obtain reaction bottom liquid;

[0054] S2: Add deionized water to NaOH, stir and dissolve to prepare NaOH solution, and then heat to 70~80℃;

[0055] S3: drop the heated NaOH solution into the reaction bottom liquid, stir and mix to obtain Ag 2 O suspension;

[0056] S4: the Ag 2 The temperature of the O suspension is raised to 60-70°C, and after the temperature is stable, the dissolved reducing agent is added, and stirring is continued to obtain a silver powder suspension;

[0057] S5: putting the silver powder suspension into the powder washing device, suction filtration, then adding deionized water to clean the silver powder, suction filtration;

[0058] S6: Repeat step S5 until the conductivity of the water after washing is less than 30 μS / cm, suction filtration, and...

reference example

[0076] This reference example provides a method for preparing flake silver powder, comprising the following steps:

[0077] 1) Preparation of reaction bottom liquid: add 50kg AgNO to the reaction kettle 3 , then inject 260L of deionized water, stir and dissolve, then add 126-225g of gum arabic and cetyl trimethyl ammonium bromide (CTAB) as dispersants to the reactor, wherein gum arabic and cetyl trimethyl bromide The mass ratio of methyl ammonium bromide (CTAB) is 1:2, stirring and mixing evenly to obtain the reaction bottom liquid, and the temperature of the reaction bottom liquid is controlled to be 40-50 ° C in the whole process;

[0078] 2) Preparation of NaOH solution: add 14kg NaOH to the auxiliary material kettle, then inject 52L of deionized water, stir and dissolve, prepare a NaOH solution, heat, and carry out the next step when the solution temperature in the auxiliary material kettle is 75 ℃ ± 2 ℃;

[0079] 3) Ag 2 Preparation of O suspension: the NaOH solution of...

Embodiment 1

[0087] The present embodiment provides a low-temperature quick-drying mask silver paste for gravure printing, which is made of the following components in mass ratio:

[0088] Flake silver powder (prepared by reference example) 30%, polymer resin 7.8% (CP450 chloroacetate 3.7%, SV-16 polyvinyl butyral 0.8%, SGR-3002W acrylic acid 0.8% and PKHH phenoxy 2.5%),

[0089] Organic solvent 60.2% (diethylene glycol ethyl ether acetate 5%, N-ethylpyrrolidone 4%, propylene glycol butyl ether 26.5%, acetone acetal 8.2% and DBE 16.5%),

[0090] 2% of functional additives (dispersant polyurea 1.0%, plasticizer polyol benzoate 0.3%, defoamer polyether 0.2%, antioxidant phenyl hydroquinone polymer 0.5%) ;

[0091] The particle size D50 of the flake silver powder is 5.627 μm, and the tap density is 5.01 g / cm 3 , burning loss≤0.6%, specific surface area 0.847m 2 / g;

[0092] The preparation method of the above-mentioned low-temperature quick-drying mask silver paste for gravure printing, c...

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Abstract

The invention discloses low-temperature quick-drying mask silver paste for intaglio printing and a preparation method of the low-temperature quick-drying mask silver paste. The mask silver paste is prepared from 30-50 wt% of flaky silver powder, 40-60 wt% of organic solvent, 5-10 wt% of polymer resin and 1-5 wt% of functional additive. Firstly, flake silver powder with large particle size, high tap density and few surface flatness defects is selected as the silver powder, so that the silver paste still has a good conductive effect under the condition of low silver content. And then, specifically selected macromolecular resin and functional auxiliaries are adopted to provide proper gravure printing process viscosity and excellent fluidity for the mask silver paste, so that a printed pattern is clear and complete, the flaky silver powder is uniformly dispersed in the printed pattern, meanwhile, excellent adhesion strength is provided for the mask silver paste, the mask silver paste is ensured to be adhered to mask cloth, and the mask cloth is prevented from being damaged. Falling is not prone to occurring; in addition, the polymer resin and the functional additive also play roles in protecting the mask silver paste from being interfered by soaking of the essence and ensuring the stable conductivity of the mask silver paste.

Description

technical field [0001] The invention relates to the technical field of electronic paste, in particular to a low-temperature quick-drying mask silver paste for gravure printing and a preparation method thereof. Background technique [0002] With the continuous improvement of living standards, especially women pay more attention to their own skin care, nowadays there are various skin care products, such as skin lotion, skin cream, skin lotion, essence mask and so on. popular with people. Although the essence mask contains more ingredients for skin whitening and moisturizing, the content of these ingredients that naturally penetrate and be absorbed by the skin is small, and most of them can only moisten the stratum corneum of the skin for a long time. The effect of replenishing water has caused great losses and waste in terms of economy and time. Existing facial masks generally adjust the composition and ratio of raw materials in the essence to improve the skin's absorption r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/22H01B13/00A61N1/18
CPCH01B1/22H01B13/00A61N1/18Y02E10/50
Inventor 刘韩杨华荣闫仁泉肖新明王翔蔡幸然
Owner 湖南省国银新材料有限公司
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