Special varnish for musical instruments and preparation method thereof

A technology for clear topcoats and musical instruments, applied in coatings, polyester coatings, polyurea/polyurethane coatings, etc., can solve the problems that the hardness of the paint does not meet the musical instruments, the hardness does not meet the customer's requirements, and the use time is short. Conducive to large-scale promotion, excellent fullness, and time-saving effects

Active Publication Date: 2011-05-25
HUIZHOU CHANGRUNFA PAINT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, PU topcoat or PE topcoat is used in the musical instrument market, but there are many defects in the application process: PU topcoat is composed of resin (component B, containing -OH group) and curing agent (component A, Containing -NCO group) is formed by reacting in a certain proportion. It is a two-component coating. The hardness of this type of paint cannot reach the hardness of musical instruments, so PU topcoats often encounter hardness that cannot reach customers when applied to musical instruments. Requirements; PE topcoat is composed of straight-chain polyester resin containing unsaturated double bonds

Method used

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  • Special varnish for musical instruments and preparation method thereof

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[0049] The present invention will be further described below in conjunction with specific embodiments, but the specific embodiments do not limit the present invention in any way.

[0050] A special varnish for musical instruments of this embodiment contains four components: A, B, C and D in its formula:

[0051] 1. Component A (PU surface), in terms of mass percentage, consists of the following components:

[0052] 83% synthetic fatty acid resin with 80% solid content;

[0053] 5% of aldehyde and ketone resin with 70% solid content;

[0054] Cyclohexanone 5%;

[0055] Xylene 5%;

[0056] Antifoaming agent 0.3%;

[0057] Leveling agent 1 0.2%;

[0058] Leveling agent 2 0.5%;

[0059] Drier 1%;

[0060] The above-mentioned defoamer adopts BYK141;

[0061] The above leveling agent 1 adopts BYK358N;

[0062] The above leveling agent 2 uses 10% BYK333;

[0063] The above-mentioned drier adopts 10% T-12;

[0064] 2. Component B, in terms of mass percentage, consists of the following components:

[0065]...

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Abstract

The invention discloses special varnish for musical instruments and a preparation method thereof. The special varnish for the musical instruments is a four-component coating; a PE (polyethylene) coating and a PU (polyurethane) coating are combined in the formula and give full play of respective advantages, and the defects of single use of the coatings are avoided, thus solving the defects in single use of the conventional products for musical instrument manufacturers. The special varnish has the advantages of high hardness up to over 2H, excellent fullness, good color change property, no greening property of PE, polishability and thickened viscosity for 5 seconds within 2 hours, thus solving the problem of use time of a single PE component. The special varnish for the musical instruments can be sprayed by an electrostatic machine, can be widely applied to the musical instruments such as a guitar, a loudspeaker box, a piano and the like, and has good comprehensive property and good constructability, thus being beneficial to large-scale popularization.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a special clear finish paint for musical instruments and a preparation method thereof. Background technique [0002] At present, PU topcoat or PE topcoat is used in the musical instrument market, but there are many defects in the application process: PU topcoat is composed of resin (component B, containing -OH group) and curing agent (component A, Containing -NCO group) is formed by reacting in a certain proportion. It is a two-component coating. The hardness of this type of paint cannot reach the hardness of musical instruments, so PU topcoats often encounter hardness that cannot reach customers when applied to musical instruments. Requirements; PE topcoat is composed of straight-chain polyester resin containing unsaturated double bonds (C=C), and then diluted with monomers. This coating is composed of initiator (white water) and accelerator ( In the presence of blue water), t...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D167/06C09D7/12
Inventor 莫荣飞
Owner HUIZHOU CHANGRUNFA PAINT
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