Production method of slow-rebound sponge

A production method and sponge technology, applied in the field of elastic materials, can solve the problems of difficulty in reducing production costs, the impact of normal production of enterprises, and no solutions, and achieve the effects of reducing production costs, improving product quality, and improving economic benefits.

Inactive Publication Date: 2010-12-08
HANGZHOU CHANGMING LATEX SPONGE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this phenomenon, the industry has tried many methods but can not find the reason; therefore, there is no effective solution; it has a great impact on the normal production of the enterprise, and it is difficult to reduce the production cost

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The inventor has carried out in-depth research on the "stiffness" phenomenon of the slow-rebound sponge block, and found the reason for the "stiffness" phenomenon: the tissue density of the slow-rebound sponge is higher (more than ten times higher than that of ordinary sponges), and its fine structure is also All are sponge materials full of open pores (incomplete foaming pores interconnected one by one, called open pores); and the sponge block tissue is finally finalized after the temperature drops. When foaming, the temperature of the slow-rebound sponge block rises to 80-90°C during the foaming and expansion process, and the heat gradually dissipates after the foaming and setting are completed; however, due to the large volume of the slow-rebound sponge block after foaming, the cooling process The outside air has no time to enter (or it is difficult to enter immediately) all the fine tissue open holes in the slow rebound sponge block; under the effect of thermal expan...

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PUM

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Abstract

The invention relates to a production method of slow-rebound sponge. The provided production method should effectively solve the petrification phenomenon of the sponge block. The method has the characteristics of simple and easy operation and low cost, thereby improving the product quality and production efficiency and reducing the product cost. The production method of slow-rebound sponge comprises the following steps of: 1) forming a container-shaped mould by enclosing a plurality of baffles; 2) pouring a material mixed by various ingredients into the mould; 3) removing the baffles after the material is foamed into the sponge block and then moving the sponge block to an open field; 4) striking or kneading each part on the surface of the sponge block so as to open up open cells in the tiny tissues in the sponge block, wherein the striking is stick striking by manpower or beating by a vibrating machine and the kneading is an action of lightly pressing the sponge block by a press for several times until the sponge block deforms at least 30% or treading the top surface of the sponge block by manpower.

Description

technical field [0001] The invention relates to a production method of an elastic material, especially a slow-rebound sponge block. Background technique [0002] Slow rebound foam (also known as slow rebound memory foam) is a material that can deform in response to changes in body temperature. When a slow rebound sponge is stressed, it will not rebound until all the pressure is evenly distributed. When the external extrusion stops, it will slowly return to its original shape. Slow rebound sponges are extremely sensitive to temperature and weight. It becomes softer in warmer environments and harder in colder environments. Therefore, this material can conform to the uneven shape of the human body, contact and support the back of the human body. People use the above characteristics of slow rebound sponge to make various household items such as pillows and cushions. [0003] Conventional slow-rebound sponge pillows and cushions can be manufactured in a variety of ways, one ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C44/00B29C44/56
Inventor 沈宏亮
Owner HANGZHOU CHANGMING LATEX SPONGE
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