A kind of food and drug conveyor belt and preparation method thereof

A technology for conveyor belts and pharmaceuticals, applied in conveyors, chemical instruments and methods, layered products, etc., can solve the problem of unsatisfactory creep resistance and service life of conveyor belts, poor adhesion of surface silica gel, and attack sensitivity, etc. problems, to achieve excellent cleaning and sanitation performance, excellent resistance to ozone aging, and easy to clean

Active Publication Date: 2017-01-18
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the conveyor belts for food and medicine on the market are mainly made of PU material. Since the PU conveyor belts commonly used in the market are environmentally friendly polyester TPU, which is easy to biodegrade, its open-chain unit structure allows air to pass through it. This molecular structure characteristic leads to It is particularly sensitive to the attack of microorganisms, so that the spores of fungi and bacteria can be deposited in it, so there are still defects in applications with high antibacterial requirements. Chinese patent CN102167212A discloses an antibacterial polyether TPU for fresh food delivery Conveyor belt and its manufacturing method, adding nano-silver antibacterial agent to TPU to improve the antibacterial effect of the conveyor belt; Chinese patent CN201494878 discloses a silicone conveyor belt for the food industry, which uses a polyester fabric skeleton as the core layer, and the upper and lower polyester fabric skeletons The surface is covered with silica gel as the surface layer. This technical solution uses silica gel as the surface layer to have a good antibacterial effect, but the surface layer of silica gel has poor adhesion and is easy to peel off, and the creep resistance and service life of the conveyor belt are not ideal.

Method used

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  • A kind of food and drug conveyor belt and preparation method thereof
  • A kind of food and drug conveyor belt and preparation method thereof
  • A kind of food and drug conveyor belt and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1～3

[0030] Such as figure 1 As shown, a food and drug conveyor belt is a four-layer structure conveyor belt composed of food-grade silicone coating 1, mesh fabric middle layer 2, PVC soft material layer 3 and dense fabric bottom layer 4, which are arranged in sequence from top to bottom. .

[0031] Such as figure 2 As shown, the food and drug conveyor belt is made by hot pressing and coating process. The production process is as follows: mesh fabric and dense fabric shaping, compounding with PVC hot pressing, coating the surface with food-grade silica gel, and finished product. The specific steps are:

[0032] The first step: the mesh fabric made of nylon (Taizhou Liancheng Fabric Co., Ltd., the mesh size is 0.01mm×0.01mm, and the weight is 120g / m 2 ) and dense fabrics (Taizhou Liancheng Fabric Co., Ltd., 1000D) are stretched and heat-set by the knitting tenter setting machine under the process conditions of the drying room at a working temperature of 160°C and a speed of 40m / ...

Embodiment 4

[0050] A preparation method of a food and drug conveyor belt, the steps of the method are as follows:

[0051] 1) The mesh fabric and the dense fabric are tenter-shaped by a knitting tenter setting machine respectively, wherein: the mesh fabric and the dense fabric are made of nylon with a thickness of 0.1 mm, and the mesh fabric is provided with fine and dense Mesh, mesh size is 0.05mm×0.05mm, weight 100 / m 2 , the dense fabric is the skeleton layer of 1200D.

[0052] 2) Lay the front side of the PVC soft material with the mesh fabric and the reverse side with the dense fabric, and then heat-compress and compound the PVC soft material through a flat vulcanizer. Lead-free PVC soft sheet, thickness 4mm.

[0053] 3) Coat a layer of food-grade silica gel on the upper surface of the mesh fabric, then coat a layer of food-grade silica gel on the side of the obtained product, and then send it to an oven for curing and molding. The temperature of curing and molding is 110°C, and the...

Embodiment 5

[0056] A preparation method of a food and drug conveyor belt, the steps of the method are as follows:

[0057] 1) The mesh fabric and the dense fabric are tenter-shaped by a knitting tenter setting machine respectively, wherein: the mesh fabric and the dense fabric are made of nylon with a thickness of 0.3 mm, and the mesh fabric is provided with fine and dense Mesh, mesh size is 0.02mm×0.02mm, weight 150g / m 2 , the dense fabric is the skeleton layer of 900D.

[0058] 2) Lay the front side of the PVC soft material with the mesh fabric and the reverse side with the dense fabric, and then heat-compress and compound the PVC soft material through a flat vulcanizer. Lead-free PVC soft sheet, thickness 2mm.

[0059] 3) Coat a layer of food-grade silica gel on the upper surface of the mesh fabric, then coat a layer of food-grade silica gel on the side of the obtained product, and then send it to an oven for curing and molding. The temperature of curing and molding is 140 ° C, and t...

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Abstract

The invention relates to a food and medicine conveyor belt and a making method thereof. The conveyor belt is a four-layer structure conveyor belt formed by compounding a food grade silica gel coat, a mesh fabric interlayer, a soft PVC layer and a compact fabric substrate which are sequentially arrayed from top to bottom. The food and medicine conveyor belt is made through a hot pressing and coating technology. The preparation method comprises the following steps: setting the mesh fabric and the compact fabric, carrying out hot pressing compounding of the set mesh fabric and compact fabric and PVC, and coating the surface by a food grade silica gel to form a finished product. Compared with conveyor belts in the prior art, the conveyor belt provided by the invention has the advantages of long service life, low cost, reaching of food and medicine contact standards, and suitableness for the food and medicine fields.

Description

technical field [0001] The invention relates to a silica gel conveyor belt, in particular to a food and medicine conveyor belt and a preparation method thereof. Background technique [0002] The conveyor belt is an important component of the belt conveyor, which mainly plays the role of carrying materials. Because the belt conveyor has the characteristics of high transmission efficiency, safe operation, convenient use and simple maintenance, it is widely used in industrial production lines. Greatly improved production efficiency. [0003] There are many types of conveyor belts, which can be divided into fabric core conveyor belts, integral fabric belt cores, steel cord conveyor belts, steel mesh conveyor belts and steel cable conveyor belts according to the different conveyor belt cores. Among them, the fabric conveyor belt is a light conveyor belt, which is mainly used in occasions with low load bearing. There are mainly cotton canvas belt cores, nylon canvas belt cores, p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/04B32B27/12B32B27/30B32B37/02B29C51/14B29C35/02B29C51/46B65G15/30
Inventor 宋玲
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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