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Production process of environment-friendly sound hole PVC membrane for harmonica

A production process and diaphragm technology, applied in the field of musical instruments, can solve the problems of players crosstalk, affecting the playing effect, and not being able to ensure the airtightness of the chromatic harmonica, so as to ensure the quality of pronunciation and good airtightness Effect

Inactive Publication Date: 2018-10-12
张敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing harmonica diaphragms cannot guarantee the airtightness of the chromatic harmonica very well, causing crosstalk when the player is playing; the air blown in by the player is hot, and the hot gas naturally condenses water beads in the harmonica, so that The diaphragm and the piano board are stuck together, and the player has to use a lot of force to make a sound when playing, which affects the playing effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The invention relates to a production process of an environment-friendly sound hole PVC diaphragm for harmonica. The diaphragm includes a covering film and a cover film, wherein the covering film is an ultra-thin white PVC film of 0.1 mm; the cover film is made of DBL divalent ester (ring Copper), diethylene glycol benzoate (dioctyl ester), FRB-126 (acrylic copper), polyvinyl chloride, nano silicon dioxide, titanium dioxide, organic glue.

[0017] The production process of the diaphragm includes the following steps:

[0018] Step 1. Pour polyvinyl chloride and nano silicon dioxide into the container first, then add 10-12ml DBL divalent ester and stir well, then add 1-2ml isooctanoic acid diethylene glycol benzoate and stir, and then add 1 -2ml FRB-126, continue to stir for 5 minutes, add 2-3g of polyvinyl chloride and 1-2g of nano-silicon dioxide in turn, finally add cornstarch and organic glue and mix thoroughly;

[0019] Step 2. Evenly coat the mixture in step 1 on t...

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PUM

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Abstract

The invention relates to a production process of an environment-friendly sound hole PVC membrane for a harmonica. The membrane comprises a tectorial membrane and a covering membrane, wherein the tectorial membrane is an ultra-thin white PVC film with the thickness of 0.1 millimeters; the covering membrane is composed of DBL bivalent ester, diisooctyl benzoate, FRB-126, polyvinyl chloride, nano silicon dioxide, titanium white powder and organic adhesive. A half scale harmonica, which uses the harmonica membrane, is good in air tightness, no crosstalk happens when a player is playing, and the membrane does not adhere to the harmonica seat plate, thereby ensuring the pronunciation quality of the half scale harmonica.

Description

technical field [0001] The invention relates to a production process of an environment-friendly sound hole PVC diaphragm used for harmonicas. It belongs to the technical field of musical instruments. Background technique [0002] Harmonica, (English Harmonica), a multi-reed musical instrument that blows or inhales with the mouth to make the metal reed vibrate and sound; it is a wind instrument with free reeds in the classification of musical instruments. [0003] Harmonica is mainly divided into solo harmonica and ensemble harmonica, each of which has different types. The range varies slightly depending on the type and tonality. As a melodic instrument, the harmonica can play at least two kinds of chords, and high-level players can play two relatively independent voices at the same time on the premise that the harmonica follows the structure of the harmonica. It is called "the piano in your pocket" because of its small size. [0004] The harmonica diaphragm is an importa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10D7/12G10D7/00G10D9/00C09D127/06C09D7/61C09D7/63C09D7/65B32B27/30B32B27/06B32B33/00B32B37/12B32B37/10
CPCB32B27/06B32B27/304B32B33/00B32B37/10B32B37/1284C08K2003/2241C08K2201/011C09D7/61C09D7/63C09D7/65C09D127/06G10D7/14G10D9/00G10D9/08C08L101/00C08K13/02C08K3/22C08K3/36C08K5/12
Inventor 张敏
Owner 张敏
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