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Production technology of latex product

A production process and technology of latex products, applied in the direction of coating, etc., can solve the problems of waste of raw materials, low hardness, non-communication and airtightness, etc., and achieve the effects of durability, good resilience, and improved ventilation and air permeability

Pending Publication Date: 2019-12-31
山东朗丽新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The Dunlop method uses sodium fluorosilicate to gel, and there are harmful chemical residues; foaming is performed first before injection molding, and 10-15% of raw materials are wasted; the product has an independent cell structure, and the holes are not connected to each other and are airtight; Since this process is heated and vulcanized from the outside to the inside, the product has low elasticity, low hardness, and poor tear strength.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of production technology of latex product, comprises the following steps:

[0032] (1) Glue compounding: mix 1g of sulfur, 3g of zinc oxide, 1g of accelerator, and 1g of antioxidant to prepare a dispersion, add 8g of the dispersion to 100g of natural latex, stir well, and then add 1g of foaming agent, 1g of stabilizer The foaming agent is added and stirred evenly to obtain the latex mixture;

[0033] (2) Mechanical foaming: inject the latex mixture into the foaming machine, and foam at 200 rpm for 10 minutes to obtain foam latex with uniform and fine cell size;

[0034] (3) Injection molding: inject foam latex into the inner cavity of the latex mattress mold;

[0035] (4) Vacuuming: Vacuum the mold so that the vacuum in the cavity is 5 kg of pressure, so that the foam latex is fully expanded and evenly filled in the entire cavity of the mold;

[0036] (5) Freezing: Cool the mold to minus 25°C and freeze for 40 minutes, so that the foam latex in the mold maintai...

Embodiment 2

[0043] A kind of production technology of latex product, comprises the following steps:

[0044] (1) Compounding: mix 1.5g of sulfur, 4g of zinc oxide, 1.5g of accelerator, and 1.5g of antioxidant to prepare a dispersion, add 9g of the dispersion to 100g of synthetic latex, stir well and then foam 1.5g Agent, 1.5g foam stabilizer are added and stirred evenly to obtain latex mixture;

[0045] (2) Mechanical foaming: inject the latex mixture into the foaming machine, and foam at 400 rpm for 8 minutes to obtain foam latex with uniform and fine cell size;

[0046] (3) Injection molding: inject foam latex into the inner cavity of the latex pillow mold;

[0047] (4) Vacuuming: Vacuum the mold so that the vacuum in the cavity is 6 kg pressure, so that the foam latex is fully expanded and evenly filled in the entire cavity of the mold;

[0048] (5) Freezing: Cool the mold to minus 28°C and freeze for 30 minutes, so that the foam latex in the mold maintains a solid circular structure...

Embodiment 3

[0055] A kind of production technology of latex product, comprises the following steps:

[0056] (1) Glue compounding: Mix 2g of sulfur, 4.5g of zinc oxide, 1.5g of accelerator, and 2g of antioxidant to prepare a dispersion, add 10g of the dispersion to 100g of natural latex, stir well, and then add 2g of foaming agent, Add 1.5g of foam stabilizer and stir evenly to obtain latex mixture;

[0057] (2) Mechanical foaming: inject the latex mixture into the foaming machine, and foam at 700 rpm for 6 minutes to obtain foam latex with uniform and fine cell size;

[0058] (3) Injection molding: inject foam latex into the inner cavity of the latex mattress mold;

[0059] (4) Vacuuming: Vacuum the mold so that the vacuum degree in the cavity is 7 kg pressure, so that the foam latex is fully expanded and evenly filled in the entire cavity of the mold;

[0060] (5) Freezing: Cool the mold to minus 30°C and freeze for 20 minutes, so that the foam latex in the mold maintains a solid circ...

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PUM

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Abstract

The invention discloses a production technology of a latex product, and belongs to the technical field of latex production. The production technology of the latex product comprises the following stepsof glue preparation, mechanical foaming, injection molding, vacuumizing, freezing, gelling, vulcanizing, cleaning, drying and inspection packaging. By adopting physical foaming, no hazardous substance residue exists; due to vulcanizing from interior to exterior, the product has the better rebound resilience and the longer durability; the interior structure is a honeycomb structure with connectedholes, the best ventilation and breathability can be improved, and hectic fever and dampness of the body can be rapidly removed; the latex product is more breathable, more comfortable and more environmentally friendly, and the latex product is greatly beneficial to the health of the spine; the material body has the advantages of resisting bacteria and resisting mites, so that the product is particularly suitable for patients suffering from asthma and hypersensitivity.

Description

technical field [0001] The invention relates to the technical field of latex production, in particular to a production process of latex products. Background technique [0002] Traditional latex pillows and latex mattresses are produced using the Dunlop process, which consists of latex compounding, foaming, injection molding, sodium fluorosilicate gelation, vulcanization, cleaning, and drying. [0003] The Dunlop method uses sodium fluorosilicate to gel, and there are harmful chemical residues; foaming is performed first before injection molding, and 10-15% of raw materials are wasted; the product has an independent cell structure, and the holes are not connected to each other and are airtight; Since this process is heated and vulcanized from the outside to the inside, the product has low elasticity, low hardness, and poor tear strength. Contents of the invention [0004] The purpose of the present invention is to provide a production process of latex products to solve the...

Claims

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Application Information

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IPC IPC(8): B29C45/00B29C45/17C08L7/02C08L21/02C08K3/06C08K3/22C08J9/04
CPCB29C45/0001B29C45/17B29C45/1753B29C2045/1784C08J9/0066C08J9/04C08J2307/02C08J2321/02C08K3/06C08K2003/2296
Inventor 关懿成
Owner 山东朗丽新材料有限公司
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