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A kind of fine dust rosin for musical instruments and preparation method thereof

A technology of rosin and musical instruments, which is applied in the field of fine dust rosin for musical instruments and its preparation. It can solve the problems of insufficient stickiness, reduction of rosin brittleness, and failure to reduce dust, etc., and achieves long service life, high sensitivity and good expressiveness. Effect

Active Publication Date: 2021-08-13
普洱科茂林化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the plasticizer is added less, it will cause loud noise and insufficient stickiness, and the purpose of reducing dust cannot be achieved; when the plasticizer is added more, the brittleness of rosin will be reduced, and the softening point of rosin will also be reduced, and the adhesion of rosin will be reduced. , thereby reducing the sound sensitivity and expressiveness, as the playing time prolongs, due to the volatilization of plasticizers, dust will be generated, so the effect is poor

Method used

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  • A kind of fine dust rosin for musical instruments and preparation method thereof
  • A kind of fine dust rosin for musical instruments and preparation method thereof
  • A kind of fine dust rosin for musical instruments and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Put 600g of rosin, 12g of paraformaldehyde, and 60g of oleic acid into a reaction vessel equipped with a stirring device, a cooling pipe, a thermometer, and a nitrogen introduction pipe, fill with nitrogen as a protective gas, heat, melt and stir, from 120°C to 220°C Slowly heat up the reaction, the reaction time is controlled at 6 hours, after the reaction is completed, it is cooled to obtain fine dust rosin for musical instruments.

Embodiment 2

[0031] Put 600 grams of rosin, 24 grams of paraformaldehyde, and 36 grams of oleic acid into a reaction vessel equipped with a stirring device, a cooling pipe, a thermometer, and a nitrogen introduction pipe, fill in nitrogen as a protective gas, heat, melt and stir, from 120 ° C to Slowly raise the temperature and react in the range of 220° C., and control the reaction time within 7 hours. After the reaction is completed, cool down to obtain fine dust rosin for musical instruments.

Embodiment 3

[0033] Put 600 grams of rosin, 24 grams of paraformaldehyde, and 36 grams of decanoic acid into a reaction vessel equipped with a stirring device, cooling pipe, thermometer and nitrogen introduction pipe, fill with nitrogen as a protective gas, heat, melt and stir, from 120 ° C to Slowly raise the temperature and react in the range of 220° C., and control the reaction time at 7.5 hours. After the reaction is completed, cool down to obtain fine dust rosin for musical instruments.

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Abstract

The invention discloses a fine-dust rosin for musical instruments and a preparation method thereof, belonging to the technical field of musical instruments. The fine-dust rosin for musical instruments of the present invention is prepared by the following steps: (1) adding paraformaldehyde and fatty acid to the molten raw material rosin, rushing into the protective gas, and slowly raising the temperature from low to high to react; (2) after the reaction is completed The discharged material is cooled to obtain fine dust rosin for musical instruments. The fine-dust rosin for musical instruments prepared by the method has good adhesion to musical instruments and excellent crystallization resistance. When applied to bowed stringed instruments, it produces less dust during use, and has the advantages of high sound sensitivity, good expressiveness and long service life.

Description

technical field [0001] The invention belongs to the technical field of musical instruments, and in particular relates to a fine-dust rosin for musical instruments and a preparation method thereof. Background technique [0002] Rosin is a substance obtained by removing turpentine from pine secretions. It is amber in color, hard and brittle in texture. Rosin for musical instruments is an important auxiliary material for bowed stringed instruments. The sounding principle of a bowed string instrument is that the bow and the string rub against each other to generate vibrations, thereby producing sound. If there is no friction, the bow will slide on the string like an ice skater. Even if there is a little friction, if the friction is not enough, it will not be able to produce various sounds. The role of rosin is to keep the bow hair dry and increase the friction between it and the strings so that the strings can make a normal and bright sound. However, the crystallization tenden...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09F1/04G10G7/00
CPCC09F1/04G10G7/00
Inventor 陈就记陆剑宇钟艳
Owner 普洱科茂林化有限公司