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Preparation method of regenerative polyester bottle tablet for producing textile filament raw material

A technology of recycled polyester and polyester bottles, applied in the direction of single-component polyester rayon, plastic recycling, recycling technology, etc., can solve problems such as shortening the process flow, save energy and material resources, and shorten the loss of raw materials Effect

Inactive Publication Date: 2010-09-15
JIANGSU XINKAISHENG ENTERPRISE DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen from the above that in the published patent literature, there is no introduction of the technical content of the system for the preparation method of the recycled polyester bottle flakes for the production of textile filament raw materials, so it is necessary to further explore the processing. The applicant believes that, except in Avoiding broken ends during the spinning process and preventing the fabric from being stiff and crossed, shortening the entire process flow, avoiding raw material loss and simple process are also important factors that cannot be ignored in the preparation of recycled polyacid bottle flakes.

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

[0027] A). Raw material preparation, unpacking or unpacking the bottle aggregates that are purchased from the market such as the material recycling department and may be mixed with non-polyester materials and in a bundled state, that is, bottle bricks, to obtain the to-be-sorted Bottles, the bottles to be sorted here refer to bottles of non-polyester materials that may be mixed with other materials besides polyester bottles;

[0028] B). Sorting. The bottles to be sorted will be sent to the automatic sorting machine by step A), and the polyester bottles on the conveyor belt that is in the automatic sorting machine will be taken out by the on-line workers to obtain the bottles to be sorted. Unlabeled polyester bottles;

[0029] C). Take off the label. As everyone knows, the bottle outer wall of the polyester bottle as the packaging container is usually pasted with the bottle label including the trademark, so the polyester bottle to be taken off the label obtained by step B) is ...

Embodiment 2

[0039] Only change the steaming temperature in step F) to 52°C, the steaming time to 30min, and the addition of caustic soda to 4.5%; and change the drying temperature to 110°C in step H), and the drying time Change it to 28min. All the other are the same as the description to embodiment 1.

Embodiment 3

[0041] Only change the steaming temperature in step F) to 95°C, the steaming time to 6min, and the addition of caustic soda to 3%; and change the drying temperature to 190°C in step H), and the drying time Change to 12min. All the other are the same as the description to embodiment 1.

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PUM

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Abstract

The invention relates to a preparation method of a regenerative polyester bottle tablet for producing a textile filament raw material, belonging to the technical field of the processing of the raw spinning materials. The preparation method comprises the steps of: preparing raw materials, separating, removing labels, shearing, smashing once, evaporating, washing, dehydrating for drying, smashing for the second time and sieving. The technical scheme provided by the invention can ensure that the regenerative polyester bottle tablet has the impurity content decreased from 2 percent to less than 0.02 percent without containing polyester powder, thereby end breakage as well as ossified filaments and yarn variation of textiles can be avoided during spinning; and moreover, the process is short with less raw materials consumption, which is beneficial to saving energy source and materials resources.

Description

technical field [0001] The invention belongs to the technical field of processing textile raw materials, in particular to a method for preparing recycled polyester bottle flakes used for producing textile filament raw materials. Background technique [0002] The recycled polyester bottle flakes are processed and reused as raw materials for textile filaments, which can not only save resources, but also reflect environmental protection. At present, there are two main physical recycling methods for discarded polyester bottles: one is to break the polyester bottles into fragments, and remove polyethylene, metals such as aluminum, paper such as labels and adhesives, and then recycle the fragments Washing, drying and granulation to obtain raw materials for the production of textile filaments; the second is to first separate the non-polyester bottle caps and labels on the polyester bottle by mechanical means, and then wash, crush and manufacture the polyester bottle pellets to obt...

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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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/00B29B17/00B29B15/00D01F6/92
CPCY02W30/62
Inventor 张卫东
Owner JIANGSU XINKAISHENG ENTERPRISE DEV
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