Production process for manufacturing food-level polyester bottle flakes utilizing polyester recovered bottles

A production process, technology of polyester bottle flakes, applied in the field of polyester bottle flakes production technology, can solve the problems of trace chemical substance residues, achieve high added value, reduce investment costs, and reduce production costs

Inactive Publication Date: 2007-06-13
谭亦武 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it is impossible to pass the checkpoint of food hygiene inspection because of trace chemical residues that cannot be detected visually
This type of residue is not limited to the surface of bottle flakes from the perspective of analysis, because PET has th

Method used

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  • Production process for manufacturing food-level polyester bottle flakes utilizing polyester recovered bottles
  • Production process for manufacturing food-level polyester bottle flakes utilizing polyester recovered bottles

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Experimental program
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Effect test

Embodiment Construction

[0042] Recycling polyester (PET) bottle of the present invention produces the production technology of food polyester (PET) bottle level chip, mainly comprises:

[0043] 1. For the cleaning process of recycled polyester (PET) bottles, please refer to Figure 1.

[0044] 1. Unpacking and washing unit

[0045] Under the strong stirring force, the bottle washing machine has the function of unpacking machine, which makes the process more simple and economical. Under the action of mechanical force, chemical force of detergent and heat, the separation and removal rate of impurities contained in PET recycling bottles (referring to environmental pollutants and labels, etc., but excluding PVC heat shrinkable labels) reaches 9%. More than ten. Under this condition, the subsequent process equipment is also quite protected due to the purification of the bottle body, especially in the environment of the pulverizer, to avoid unnecessary wear and tear due to excessive pollutants.

[0046] ...

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Abstract

This invention discloses a production technology for producing the food-grade polyester bottle slices by utilizing the restored polyester bottles. According the characteristics of restored PET bottle, the restored polyester bottles were washed firstly and pulverized to slices, then the PVC bottle bodies, the volume labels, the impurities and the foreign materials were wiped off. Secondly, according the species of the residuum, the removing technology of the corresponding trace impurity was used. So the trace impurities of PVC, PP, PE and the other mechanical impurities can be removed again. The residuum of the restored PET bottle can be cut down greatly. Finally, the solid phases were condensed together so as to obtain the food-grade polyester bottle slices. Because of using the restored polyester bottles, the production cost is low, and the production technology meet the circulating economical development idea which advocated by the country nearly. The quality of the reproduction accords with the national standards of the food-grade PET bottle. The foreign exchange of the production technology is high and the economic effects as well as the social effects are obvious.

Description

【Technical field】 [0001] The invention relates to a production process of polyester bottle flakes, in particular to a production process of producing food-grade polyester bottle flakes from recycled polyester bottles. 【Background technique】 [0002] PET (polyester) is the main chemical fiber raw material. Because of its superior physical properties, PET has wider and higher value-added applications in packaging materials. Edible packaging sheets and edible beverage bottles are practical examples. [0003] Based on the two issues of concern to all mankind, environmental protection and natural resource conservation, the recycling process of used PET bottles has been sprouting since the 1970s. The recycled bottle flakes produced in the early stage started from meeting the demand for short fiber raw materials. The improvement and development of the continuous process are all moving towards reducing the retention rate of impurities. The total impurity rate has changed from the e...

Claims

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Application Information

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IPC IPC(8): C08J11/00C08L67/00B29B17/00B29C47/92B29C48/92
CPCB29C47/92Y02W30/62
Inventor 谭亦武唐周军
Owner 谭亦武
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