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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 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 seriously affects Improve the quality of plastic packaging products

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] After sorting, cleaning, draining and crushing waste plastics, 100kg of broken plastics were 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 wax and 0.5kg of calcium stearate were mixed with The crushed plastic is mixed and put into a high-speed mixer to stir and mix evenly; the mixed material is directly sent to the screw drawing extruder for heating, and the temperature is increased to 200°C for melting and plasticizing; then the plastic mixture in the molten state is directly sent to the filter for filtration; Then the filtered plastic mixture is extruded from the die, and the plastic is extruded into a film in a melted state and squeezed out; then the film is passed through the water tank for water cooling, and the water temperature is set to 50°C; then The film is cut into billets by roller blades. At the same time, the billets are heated by an oven and drawn by traction. The st...

Embodiment 2

[0020] After sorting, washing, draining and crushing waste plastics, 100kg of broken plastics were 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 it with broken plastic and put it into a high-speed mixer to stir and mix evenly; send the mixture directly to the screw drawing extruder for heating, and increase the temperature to 208°C for melting and plasticization; then directly send the plastic mixture in the molten state to the filter for filtration ; Then the filtered plastic mixture is extruded from the die, and the plastic is extruded into a film in a melted state and squeezed out; then the film is passed through the water tank for water cooling, and the water temperature is set to 55 ° C; then The film is cut into billets by roller blades. At the same time, the billets are heated by an oven and drawn by traction. The stretching ratio is set to 6 ...

Embodiment 3

[0023] Sorting, washing, draining and crushing waste plastics to obtain 100kg of broken plastics, 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 broken plastics are mixed and put into a high-speed mixer to stir and mix evenly; the mixture is directly sent to the screw drawing extruder for heating, and the temperature is increased to 215°C for melting and plasticization; then the plastic mixture in the molten state is directly sent to the filter Then filter the filtered plastic mixture from the die, extrude the plastic into a soft film and squeeze it out; then let the film pass through the water tank for water cooling, and set the water temperature to 60 ℃; then the film is cut into blanks by roller blades, and at the same time, the blanks are heated by an oven and drawn by traction, and the stretching ratio is set to 6.5 times, and finally the finished filament...

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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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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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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