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Waterborne matte skin-touch coating and preparation method thereof

A water-based, coating technology, applied in the direction of coating, polyurea/polyurethane coating, etc., can solve the problem of not having good film formation and crack resistance, water resistance, abrasion resistance and scratch resistance, elongation and bending resistance. It can solve the problems of unsatisfactory interference performance, poor light resistance and yellowing resistance of the coating, and achieve the effects of excellent elongation and resistance to bending, low product modulus, and good yellowing resistance.

Inactive Publication Date: 2019-01-25
佛山市威仕启科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the change of aesthetics in the field of packaging and printing, water-based matte skin-feeling coatings are widely loved by people. The existing water-based matte skin-feeling coatings contain toxic substances such as formaldehyde during processing, and the coatings have light resistance and yellowing resistance. Poor, poor film-forming toughness, low tensile strength, unsatisfactory extensibility and bending resistance, and poor matting ability, unable to reduce matting agent, can improve water and moisture resistance after use, and the coating does not have good film-forming properties And crack resistance, water resistance, abrasion resistance and scratch resistance

Method used

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  • Waterborne matte skin-touch coating and preparation method thereof
  • Waterborne matte skin-touch coating and preparation method thereof
  • Waterborne matte skin-touch coating and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0022] A water-based matte skin-feeling coating and a preparation method thereof, comprising the following components by mass percentage: polyurethane 8%-88%, water-based elastic resin 5%-90%, matte agent 5%-20%, pH adjustment agent 0.1%-1%, wetting and leveling agent 0.3%-0.9%, hand feeling aid 0.3%-1.2%, curing agent 1%-8%, organic solvent 1%-10%, anti-scratch agent 0.5%-1.8 %.

[0023] Wherein, the polyurethane is water-based polyurethane, and the particle size of the medium-water polyurethane solution is less than 0.001 μm, and the appearance of the polyurethane is transparent.

[0024] Wherein, the polyurethane is one or both of polyether polyurethane or polyester polyurethane.

[0025] Wherein, the water-based elastic resin is a water-based aliphatic polyurethane dispersion, and the water-based aliphatic polyurethane is a water-based elastic PU resin X-PU632 water-based polyurethane.

[0026] Wherein, the matting agent is modified silica matting paste.

[0027] Wherei...

Embodiment 1

[0032] Embodiment 1, a water-based matte skin-feeling coating and a preparation method thereof, comprising the following components by mass percentage: 80% of polyurethane, 5% of water-based elastic resin, 5% of matte agent, 0.5% of pH adjuster, moisturizing agent Wet leveling agent 0.5%, hand feeling aid 0.5%, curing agent 5%, organic solvent 2%, anti-scratch agent 0.5%.

[0033]

[0034] Include the following steps:

[0035] A: Mix the components according to the stated mass percentage, adjust the mixer speed to 800-900r / min and mix and stir for 30min to prepare a coating water dispersion;

[0036] B: apply the aqueous dispersion of the coating obtained by the A to the substrate, so that the coating obtained by the A is fully reacted and mixed with the substrate;

[0037] C: preheating the coating obtained by the B in a sealed environment at a temperature of 80-130° C. and a time of about 5 min;

[0038] D: The temperature of the coating obtained in the C is about 150° ...

Embodiment 2

[0039] Embodiment 2, a water-based matte skin-feeling coating and a preparation method thereof, comprising the following components by mass percentage: 75% of polyurethane, 5% of water-based elastic resin, 5% of matte agent, 0.5% of pH adjuster, moisturizing agent Wet leveling agent 0.5%, hand feeling aid 0.5%, curing agent 6%, organic solvent 7%, anti-scratch agent 0.5%.

[0040]

[0041]

[0042] Include the following steps:

[0043] A: Mix the components according to the stated mass percentages, adjust the mixer speed to 900-1000r / min and fully mix and stir for 25min to prepare a coating water dispersion;

[0044] B: apply the aqueous dispersion of the coating obtained by the A to the substrate, so that the coating obtained by the A is fully reacted and mixed with the substrate;

[0045] C: preheating the coating obtained by the B in a sealed environment at a temperature of 80-130° C. and a time of about 5 min;

[0046] D: The temperature of the coating obtained in ...

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Abstract

The invention discloses a waterborne matte skin-touch coating and a preparation method thereof. The waterborne matte skin-touch coating is prepared from the following components in percentage by mass:8 to 88 percent of polyurethane, 5 to 90 percent of waterborne elastic resin, 5 to 20 percent of a matte agent, 0.1 to 1 percent of a pH (Potential of Hydrogen) regulator, 0.3 to 0.9 percent of a wetting leveling agent, 0.3 to 1.2 percent of a hand feeling auxiliary agent, 1 to 8 percent of a curing agent, 1 to 10 percent of an organic solvent and 0.5 to 1.8 percent of an anti-scratching agent. The waterborne matte skin-touch coating does not contain toxic substances including formaldehyde and the like; the matte agent is added so that the light-resisting and yellowing-resisting performance of the coating is better and the film-forming toughness is good; a substrate adhesion force is strong and the modulus of a product is low; the coating has greater tensile strength, excellent extensibility and anti-bending performance and a strong extinction capability; the dosage of an extinction agent can be reduced; after the coating is used, the waterproof and moisture-proof performance can be improved and the film-forming performance is good; the anti-scratching agent is added so that the coating has good film-forming performance and anti-cracking performance, and the coating has water-resisting, wear-resisting, anti-scratching and anti-yellowing effects and the like.

Description

technical field [0001] The invention discloses an aqueous matte skin-feeling coating and a preparation method thereof, belonging to the technical field of coating preparation. Background technique [0002] Aesthetic changes in the field of packaging and printing, water-based matte skin-feeling coatings have been widely loved by people. The existing water-based matte skin-feeling coatings contain formaldehyde and other toxic substances during the processing, and the coatings have light resistance and yellowing resistance. Poor, poor film-forming toughness, low tensile strength, unsatisfactory elongation and flex resistance, and poor matting ability, unable to reduce matting agent, can improve water and moisture resistance after use, coating does not have good film-forming properties and crack resistance, water resistance, abrasion resistance and scratch resistance. SUMMARY OF THE INVENTION [0003] The object of the present invention is to provide a water-based matte skin-...

Claims

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Application Information

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IPC IPC(8): C09D175/06C09D175/08C09D175/04C09D7/62C09D7/65
CPCC08L2205/02C08L2205/03C09D7/62C09D7/65C09D175/06C09D175/08C08L75/04C08L83/04C08K13/06C08K3/36
Inventor 蔡中发
Owner 佛山市威仕启科技有限公司
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