High hardness high transparency high separation packing tube and production method thereof
A production method and high-barrier technology, applied in packaging, transportation and packaging, flexible tubular containers, etc., can solve the problems of inability to form round tubular thin-walled product packaging, inability to draw tubes, and inability to reflect the effect of high transparency
Active Publication Date: 2009-03-04
苏州通产丽星包装科技有限公司
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Problems solved by technology
[0002] At present, the thin-walled packaging hoses used for cosmetics and other products in the world are made of polyethylene (PE), and the transparent packaging hoses are often made of high-density polyethylene (HDPE). The characteristic of being foggy white and opaque makes it impossible to reflect the effect of high transparency required by the customer's design
At present, the thin-walled packaging hose does not use polypropylene (PP) material, because the melt index of the previous polypropylene material is above 2.0, which makes it impossible to draw the tube. Even if injection molding is used, because the wall thickness is too thin and brittle, it cannot be formed. Round tubular thin-walled products are used in the packaging of cosmetics and other products
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Embodiment Construction
[0022] For the structure of the packaging tubes of Embodiment 1 to Embodiment 7, see Figure 8 , its overall structure is the same as the existing packaging hose, the difference lies in the structure of the tube wall and / or the material of the hose. Described separately below.
[0023] see figure 1 and figure 2 , the pipe wall 1 of embodiment one and the pipe wall 2 of embodiment two are all single-layer structures, but the materials are different. The material of pipe wall 1 of embodiment one is polypropylene, which is produced by extrusion process by polypropylene. The pipe wall 2 material of example two is the blend of polypropylene and polyethylene, wherein the percentage by weight of polypropylene is 70% (the following blends of polypropylene and polyethylene are all the same), polypropylene and polyethylene according to Co-extruded by the same extruder after mixing in proportion.
[0024] see Figure 3 to Figure 6 , the pipe wall of the flexible pipe of embodiment ...
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Abstract
The invention relates to a packaging hose with high hardness, high transparency and high barrier and a production method thereof. The wall of the packaging hose adopts a one-five layer structure made of raw material containing polypropylene and produced through extrusion process, and the polypropylene adopts the polypropylene with 0.5 to 2.0 melt index. The hose has the performances of high hardness, high transparency and high barrier, is a significant breakthrough in the development of the hose co-extrusion technology, and provides a new option for the customer on the pack designing of the packaging hose.
Description
technical field [0001] The invention relates to a packaging hose and a production method thereof. Background technique [0002] At present, the thin-walled packaging hoses used for cosmetics and other products in the world are made of polyethylene (PE), and the transparent packaging hoses are often made of high-density polyethylene (HDPE). The characteristic of being foggy white and opaque makes it impossible to reflect the effect of high transparency required by the customer's design. At present, the thin-walled packaging hose does not use polypropylene (PP) material, because the melt index of the previous polypropylene material is above 2.0, which makes it impossible to draw the tube. Even if injection molding is used, because the wall thickness is too thin and brittle, it cannot be formed. Round tubular thin-walled products are used in the packaging of cosmetics and other products. Contents of the invention [0003] The object of the present invention is to provide a ...
Claims
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IPC IPC(8): B65D35/08B65D35/02B29C47/20B29C47/06B29C47/56B29C47/92B29K23/00B29L23/00B29C48/32B29C48/92
CPCB29C47/92
Inventor 林茂青
Owner 苏州通产丽星包装科技有限公司