Process and apparatus for producing packing plastic material

A packaging material and production process technology, which is applied in the production process and equipment field of all-plastic packaging materials, can solve problems such as insufficient composite strength, low yield rate, and poor appearance, and achieve the effects of recycling, reducing waste, and saving man-hours

Inactive Publication Date: 2007-11-07
惠州宝柏包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires three to four processes to complete the production of the sheet, the process is complica

Method used

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  • Process and apparatus for producing packing plastic material
  • Process and apparatus for producing packing plastic material
  • Process and apparatus for producing packing plastic material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] As shown in Figure 3, the six-layer co-extruded non-barrier sheet produced by the method of the present invention is processed by a three-layer co-extrusion blown film machine equipped with a hot press roll.

[0030] The specific manufacturing process is as follows:

[0031] As shown in Figure 1 and Figure 3, in the existing three-layer co-extrusion film blowing equipment (Figure 2), the required various resins and raw materials are weighed through an automatic metering hopper and then according to the set ratio It enters the screw 1 and is heated and melted and then blown out by the die. The blown bubble 2 is drawn by the herringbone 3 to form two co-extruded three-layer films with opposite inner layers. After that, the two three-layer films with opposite inner layers are passed through the hot pressing roller 4 at the same time. The temperature of the hot pressing roller 4 is 50°C to ensure a good composite strength between the adhesive layers. Two co-e...

Example Embodiment

[0032] Example 2

[0033] As shown in Figure 4, the fourteen-layer co-extruded non-barrier sheet produced by the method of the present invention is processed by a seven-layer co-extrusion blown film machine equipped with a hot press roll.

[0034] The specific manufacturing process is as follows:

[0035] As shown in Figure 1 and Figure 3, in the existing seven-layer co-extrusion blown film equipment (Figure 2), the required various resins and raw materials are weighed through an automatic metering hopper and then according to the set ratio It enters the screw 1 and is blown out by the die after heating and melting. The blown bubble 2 is drawn by the herringbone 3 to form two co-extruded seven-layer films with opposite inner layers. After that, the two seven-layer films with opposite inner layers pass through the hot pressing roller 4 at the same time. The temperature of the hot pressing roller 4 is 80°C to ensure good composite strength between the adhesive layers. Two co-extrude...

Example Embodiment

[0036] Example 3

[0037] The 26-layer co-extruded non-barrier sheet produced by the method of the present invention is processed by a 13-layer co-extrusion blown film machine equipped with a hot press roll.

[0038] The specific manufacturing process is as follows:

[0039] As shown in Figure 1 and Figure 3, in the existing 13-layer co-extrusion film blowing equipment (Figure 2), the required various resins and raw materials are weighed through an automatic metering hopper and then according to the set composition The ratio enters the screw 1 and is heated and melted and then blown out by the die. The blown bubble 2 is drawn by the herringbone 3 to form two co-extruded 13-layer films with opposite inner layers. After that, the two 13-layer films with opposite inner layers pass through the hot pressing roller 4 at the same time. The temperature of the hot pressing roller 4 is 100°C to ensure a good composite strength between the adhesive layers, and then the smoothing roller smoot...

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Abstract

The present invention discloses process and apparatus for producing packing plastic material. The process includes the following steps: feeding material through several feed ports including feeding adhesive resin material in the inner layer feed port, melting and blowing to produce film bubble, cooling, drawing to form two sheets of film, hot pressing, and cutting and winding. Compared with available technology, the present invention has the advantages of low production cost, simple produce process, high material homogeneity, high compounding strength and rich colors.

Description

technical field [0001] The invention relates to a production process and equipment for packaging materials, in particular to a production process and equipment for all-plastic packaging materials. Background technique [0002] At present, there are two main processes for making plastic hose packaging films: one is the extruded hose commonly used in cosmetic packaging, and the extruded tube is obtained at one time through extrusion equipment; the other is used in toothpaste packaging and some pharmaceuticals The co-extruded aluminum-plastic or plastic-plastic composite film with more than five layers on the package is mainly composed of multi-layer plastic film or composited with aluminum foil. Due to one-time molding, the resin used in the former is polyethylene or polypropylene, and the resulting pipe has no barrier properties, and the extrusion process is relatively complicated. The extruded pipe has disadvantages such as poor thickness uniformity and high processing costs...

Claims

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Application Information

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IPC IPC(8): B29C69/00B29C55/28B29C65/02B29L9/00
Inventor 邓吨英邹燕红王忠林孙永庆杨伟陈东
Owner 惠州宝柏包装有限公司
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