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PBAT full-biodegradable and anti-counterfeiting plastic bag and preparation method thereof

A biodegradable, plastic bag technology, applied in biological packaging, chemical instruments and methods, luminescent materials, etc., can solve the problems of increasing processing procedures, affecting product appearance, and not having anti-counterfeiting functions, so as to achieve good binding force and realize authenticity Identification and traceability, the effect of simple production process

Active Publication Date: 2015-01-07
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Polybutylene adipate / butylene terephthalate plastic bag is a completely biodegradable plastic bag with a very wide range of applications. However, it usually does not have anti-counterfeiting functions. In addition, special anti-counterfeiting marks are set on the bag, such as printing anti-counterfeiting ink, or pasting anti-counterfeiting labels, etc., which affects the appearance of the product and increases the processing procedure
And because these anti-counterfeiting technologies are widely used anti-counterfeiting technologies, it is easy for counterfeiters to see, thereby imitating the corresponding anti-counterfeiting marks

Method used

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  • PBAT full-biodegradable and anti-counterfeiting plastic bag and preparation method thereof
  • PBAT full-biodegradable and anti-counterfeiting plastic bag and preparation method thereof
  • PBAT full-biodegradable and anti-counterfeiting plastic bag and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A1~A40

[0044] Embodiments A1~A40 and comparative examples B1~B4: preparation of anti-counterfeiting masterbatch

[0045]Weigh the carrier resin, fluorescent powder, coding substances and additives according to the proportions shown in Table 1~5, pour them into a high mixer and mix evenly, melt them in a twin-screw extruder at 150~210°C, and extrude to granulate , to prepare anti-counterfeiting masterbatch.

[0046]

[0047]

[0048]

[0049]

[0050]

Embodiment 1~40 and comparative example 1~6

[0051] Examples 1-40 and Comparative Examples 1-6: Preparation of PBAT completely biodegradable anti-counterfeiting plastic bags

[0052] A kind of preparation method of PBAT complete biodegradation anti-counterfeit plastic bag, its raw material formula is as shown in table 6~10, and its preparation method comprises the following steps:

[0053] Weigh each component by weight, extrude PBAT and the anti-counterfeit masterbatch prepared in Table 1~5 into the co-extrusion head with two large and small extruders, and extrude PBAT from the large extruder , the anti-counterfeiting masterbatch is extruded from a small extruder, and after extruding the two-color foam tube, it is blown, drawn, printed, rolled, bag-made, and punched to obtain a PBAT completely biodegradable anti-counterfeiting plastic bag with anti-counterfeiting strips; , the barrel temperature of the two large and small extruders is divided into three sections for control, followed by feeding section 105 ° C, middle...

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Abstract

The invention discloses a PBAT full-biodegradable and anti-counterfeiting plastic bag and a preparation method thereof. The PBAT full-biodegradable and anti-counterfeiting plastic bag comprises the following components in parts by weight: 100 pars of PBAT and 0.1-20 parts of anti-counterfeiting masterbatch, wherein the anti-counterfeiting masterbatch comprises the following components in weight percentage: 27-99.9% of carrier resin, 0.01-15% of fluorescent powder, 0.01-65% of coding substance and 0-3.25% of additives; and the carrier resin is PBAT. The preparation method comprises the following steps: performing plastic extrusion on PBAT and the anti-counterfeiting masterbatch to a co-extrusion machine head by a large extruder and a small extruder respectively, extruding PBAT from the large extruder, extruding the anti-counterfeiting masterbatch from the small extruder, extruding a double-color bubble tube, and then performing inflation, traction, printing, coiling, bagging and punching to prepare the PBAT full-biodegradable and anti-counterfeiting plastic bag. An anti-counterfeiting strip and a PBAT film are fused into a whole by adopting a specific co-extrusion and film-blowing process, and the binding force is good; the production process is simple, the anti-counterfeiting cost is low, and the PBAT full-biodegradable and anti-counterfeiting plastic bag is easy to process, form and realize mass production; the authenticity identification and tracing of the PBAT full-biodegradable and anti-counterfeiting plastic bag are realized according to fluorescence characteristic and coding information on the anti-counterfeiting strip.

Description

technical field [0001] The invention relates to the technical field of packaging anti-counterfeiting, in particular to a completely biodegradable PBAT anti-counterfeiting plastic bag and a preparation method thereof. Background technique [0002] Polybutylene adipate / terephthalate (PBAT) is a thermoplastic biodegradable plastic. It is a copolymer of butylene adipate and butylene terephthalate. It has the characteristics of both PBA and PBT. It not only has good ductility and elongation at break, but also has good heat resistance and impact properties; in addition, it also has excellent biodegradability, and is currently very active in the research of biodegradable plastics and the best degradable material in the market. one. [0003] Polybutylene adipate / butylene terephthalate plastic bag is a completely biodegradable plastic bag with a very wide range of applications. However, it usually does not have anti-counterfeiting functions. In addition, special anti-counterfeiting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L3/02C08L67/04C08K3/22C08K3/26C08J3/22B29C47/92C09K11/06B65D65/46B29C48/92
CPCY02W90/10
Inventor 欧阳春平王超军刘奇祥蔡彤旻殷朝纲杨彪焦建杨晖曾祥斌
Owner KINGFA SCI & TECH CO LTD
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