Method for direct modifying and yarn flattening of reclaimed material woven bag

A technology of woven bags and recycled materials, applied in stretch spinning, rayon manufacturing, conjugated rayon, etc., can solve the problems of flat yarn strength reduction, plastic molecular structure damage, and affecting the quality of plastic packaging products, etc., to achieve Improve the tensile strength, increase the tensile strength, save the effect of the process

Inactive Publication Date: 2013-06-26
重庆市广博塑料袋有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The woven bag packaging production industry basically uses waste woven bags for reprocessing, and the processing process includes granulation, mixing, flat wire, weaving, printing, cutting, edge sealing and other processes; among them, waste plastics are processed in the granulation production process After high-temperature melting and plasticizing, in ord

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Example 1.

[0017] After sorting, cleaning, draining, and crushing waste plastics, 100kg of broken plastics are obtained, and then 9kg of new polyolefin materials, 4.5kg of mica powder, 3kg of epoxy resin, 1kg of titanium dioxide, 0.5kg of paraffin and 0.5kg of calcium stearate are combined with The crushed plastic is mixed and put into a high-speed mixer to stir and mix evenly; the mixture is directly fed into the screw wire drawing extruder for heating, and the temperature is increased to 200°C for melting and plasticization; then the molten plastic mixture is directly sent to the filter for filtering; Then extrude the filtered plastic mixture from the die to extrude the plastic into a melted and soft film and squeeze it out; then pass the film through the water tank and cool it with water, and set the water temperature to 50°C; The film is cut into raw filaments by a roller blade, and the raw filaments are heated by an oven while drawing with traction. The draw ratio i...

Example Embodiment

[0019] Example 2.

[0020] After sorting, cleaning, draining and crushing waste plastics, 100kg of broken plastics are obtained, and then 10kg of new polyolefin materials, 5kg of mica powder, 3.5kg of epoxy resin, 1.1kg of titanium dioxide, 0.55kg of paraffin and 0.55kg of calcium stearate Mix with the broken plastic and put it into a high-speed mixer to stir and mix evenly; send the mixture directly into the screw drawing extruder for heating, increase the temperature to 208℃ for melting and plasticization; then send the molten plastic mixture directly into the filter for filtering ; Then extrude the filtered plastic mixture from the die, squeeze the plastic into a thin film in a melted state and squeeze it out; then pass the film through the water tank for water cooling, and set the water temperature to 55°C; The film is cut into raw filaments by a roller blade, and the raw filaments are heated by an oven while drawing with traction. The draw ratio is set to 6 times, and finall...

Example Embodiment

[0022] Example 3.

[0023] After sorting, cleaning, draining, and crushing the waste plastics, 100kg of broken plastics are obtained, and then 9-11kg of new polyolefin materials, 5.5kg of mica powder, 4kg of epoxy resin, 1.2kg of titanium dioxide, 0.6kg of paraffin and 0.6kg of stearin Calcium acid and crushed plastic are mixed and put into a high-speed mixer to stir and mix evenly; the mixture is directly fed into the screw drawing extruder for heating, and the temperature is increased to 215°C for melting and plasticization; then the molten plastic mixture is directly sent to the filter Filter the filtered plastic mixture from the die head, extrude the plastic into a melted and soft film and squeeze it out; then let the film pass through the water tank and perform water cooling, and set the water temperature to 60 ℃; Next, the film is cut into filaments by a roller blade, and the filaments are heated through an oven while drawing with traction force. The draw ratio is set to 6....

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PUM

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Abstract

The invention discloses a method for direct modifying and yarn flattening of a reclaimed material woven bag, belonging to the technical fields of woven bag production and environmental protection of chemical waste substances. The method is finished by nine major processes including preparation, dosing, melting, filtration, extrusion and membrane output, water cooling, splitting, drawing and winding, and the method has the beneficial effects that the waste plastic is melted and directly subjected to yarn flattening, the process and energy consumption are reduced, and labor power is reduced; a small amount of master batch, modifier, whitening agent and lubricant is added during the dosing; after the melting, the tensile strength and fineness of the yarn-flattened material are reasonably improved through the filtration, the membrane output, the water cooling and the drawing; particularly, the water cooling is performed at 50-60 DEG C, and then the drawing times is set as 6.5; according to a test, the warp-direction pulling strength and the weft-direction pulling strength of the produced flattened yarn are both greater than 700N/50mm, the tensile strength of the flattened yarn is greatly enhanced, and the problem of yarn breakage in a weaving process is avoided; and by adopting waste plastic as raw material, the environmental pollution is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of woven bag production, and also belongs to the technical field of environmental protection of chemical waste materials, and in particular relates to a method for directly modifying flat yarns in woven bags made of recycled materials. Background technique [0002] The woven bag packaging production industry basically uses waste woven bags for reprocessing, and the processing process includes granulation, mixing, flat wire, weaving, printing, cutting, edge sealing and other processes; among them, waste plastics are processed in the granulation production process After high-temperature melting and plasticizing, in order to obtain recycled plastic particles, and then high-temperature melting and plasticizing again in the wire drawing production, the waste plastic is repeatedly melted, causing the molecular structure of the plastic to be destroyed, resulting in a decrease in the strength of the flat wire, which ...

Claims

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Application Information

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IPC IPC(8): D01F8/00D01F8/06D01F8/16D01F1/10D01D5/42D01D5/12
Inventor 韦春
Owner 重庆市广博塑料袋有限公司
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