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A kind of loudspeaker paper cone and its preparation method and application

A loudspeaker and paper cone technology, which is applied in the field of loudspeakers, can solve the problems of destroying the film-forming continuity of other paper additives, affecting the sound quality of the speaker, and the decline in the mechanical properties of the paper cone. It achieves strong electrostatic bonding, good water resistance, and low The effect of surface free energy

Active Publication Date: 2021-03-09
GUOGUANG ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the prior art, most waterproof and moisture-proof agents contain a large amount of inorganic fillers, which greatly increases the weight of the paper, and may destroy the film-forming continuity of other paper additives, and reduce the mechanical properties of the paper cone; in addition , the addition of inorganic fillers will change the proportion of various pulps in the paper cone, affecting the sound quality of the speaker
More importantly, the waterproof and moisture-proof agents in the prior art can only control the water absorption rate of the paper cone, but cannot make the paper cone completely impermeable, so that the paper cone still cannot be used in harsh environments such as underwater

Method used

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  • A kind of loudspeaker paper cone and its preparation method and application
  • A kind of loudspeaker paper cone and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] This embodiment provides a speaker paper pot, and the preparation method is as follows:

[0050] (1) Adding a cationic benzide emulsion to the pulp, adding the amount of 10%, stirring; stirring; 15 min, continues to add emulsified paraffin to the slurry, adding the amount of 2% of the ride of the right slurry, stir well, Get prefabricated slurry;

[0051] (2) The prefabricated slurry obtained by step (1) is passed through the pulp, hot press molding, and digestive to obtain the speaker paper pot.

Embodiment 2

[0053] This embodiment provides a speaker paper pot, and the preparation method is as follows:

[0054] (1) Adding a cationic benzide emulsion to the pulp, the amount is 5%, stirred; stirring; 15 min, continues to add emulsified paraffin to the slurry, and add amount of 5% of the quality of the right slurry, stir well. Get prefabricated slurry;

[0055] (2) The prefabricated slurry obtained by step (1) is passed through the pulp, hot press molding, and digestive to obtain the speaker paper pot.

Embodiment 3

[0057] This embodiment provides a speaker paper pot, and the preparation method is as follows:

[0058] (1) Adding a cationic benzide emulsion to the pulp, the amount is 7.5%, stirred; after 15 min, continue to add emulsified paraffin to the slurry, add amount of 3% of the quality slurry, stir well, Get prefabricated slurry;

[0059] (2) The prefabricated slurry obtained by step (1) is passed through the pulp, hot press molding, and digestive to obtain the speaker paper pot.

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Abstract

The invention provides a speaker cone and its preparation method and application. The raw materials for the speaker cone include paper pulp, cationic styrene-acrylic emulsion and emulsified paraffin; the cationic styrene-acrylic emulsion and emulsified paraffin cooperate with each other to endow the The excellent waterproof and moisture-proof performance of the above-mentioned speaker paper cone, the waterproof performance can reach IPX7 level, and the water absorption rate is lower than 4.72%, which can fully meet the application of the speaker in underwater and wet outdoors. The speaker paper cone provided by the present invention can be prepared by mixing and dispersing pulp, cationic styrene-acrylic emulsion and emulsified paraffin, and then scooping, hot-pressing, and punching, or can be prepared by mixing and dispersing pulp and cationic styrene-acrylic emulsion. Then, it is prepared by scooping, hot pressing, punching, coating emulsified paraffin on the surface, and drying; the preparation process is simple and controllable, and a speaker cone with uniform quality and stability can be obtained, which has broad application prospects.

Description

Technical field [0001] The present invention belongs to the technical field of speakers, and in particular to a speaker paper basin and a preparation method thereof. Background technique [0002] The tuk is an important part of the voice unit in the speaker, and its main function is to provide accurate frequency response. The tank can be divided into paper pots, metal basins, ceramic pots, PP pots, and composite basins, in which paper pots have natural, low cost, good processability, and have a wide range of applications. The main raw materials of the paper pots are plant fibers, so it gives natural hydrophilicity to the paper pots, resulting in poor waterproof performance of the paper pots, after the water pots are absorbed, on the one hand, the paper potency can decline sharply, and on the other hand The paper pot is changed, so that the acoustic characteristics of the speaker will also change; when the paper wet loop is multiple times, it may cause the material itself to fatig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R9/06H04R9/02H04R31/00
CPCH04R9/02H04R9/06H04R31/003H04R2400/11
Inventor 司景航谢守华祝少鹏王世伟
Owner GUOGUANG ELECTRIC
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