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Laser marked polyethylene terephthalate composition and preparation thereof

A polyethylene terephthalate and laser marking technology, which is applied in the field of laser-markable polyethylene terephthalate compositions and the preparation thereof, can solve the problems of decreased physical properties of materials, high price, added Excessive amount and other problems, to achieve the effect of uniform lines, reducing the amount of addition, simple and reliable process

Active Publication Date: 2008-10-29
CHINA PETROLEUM & CHEM CORP +1
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  • Description
  • Claims
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Problems solved by technology

[0005] The technical problem to be solved by this invention is to provide a laser-markable polyethylene terephthalate (PET) composition, which can overcome the decline in the physical properties of the material caused by the excessive addition of the current laser auxiliary agent. and the problem of expensive

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  • Laser marked polyethylene terephthalate composition and preparation thereof

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Embodiment 1～7

[0032] 100 parts of PET (BG85, viscosity is 0.85dL / g, Sinopec Yizheng Chemical Fiber Company) and 0.2 part of 1010 (CIBA company), 0.1 part of 168 (CIBA company), ultrafine fully vulcanized acrylate powder rubber (brand VP 301, Beijing Beihuayan Chemical New Technology Co., Ltd., particle diameter 100-150nm, gel content 85% by weight), pearl powder (5051, Engelhard company) after stirring evenly, the mixture is added into a twin-screw extruder (Germany WP company, The model is ZSK-25) after melt blending and extruding to granulate. During the extrusion process, add long-strand glass fiber (30 parts) at the glass fiber port of the extruder, and the extrusion temperature is 240-260 ° C. The screw speed is 300 rpm. The extruded pellets were dried in an oven at 80°C for 8 hours, and then injected into standard specimens at a temperature of 245-265°C for laser marking tests and related performance tests. The specific formula is shown in Table 1, wherein the contents of each compon...

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Abstract

The invention relates to a laser marked polyethylene terephthalate composition and a preparation method thereof. The composition contains the blend of the following components: 100 weight parts of polyethylene terephthalate and 0.1-15 weight parts of powdered rubber. The powdered rubber is powdered acrylic rubber. The preparation method comprises the step of proportioning, meleting and blending all components including polyethylene terephthalate and powdered rubber. The inventive composition overcomes the problems of poor physical property and expensive price due to excessive amount of laser adjuvant in the material. The production method is simple and reliable.

Description

technical field [0001] The invention relates to a laser-markable polyethylene terephthalate composition and a preparation method thereof. Background technique [0002] In the industrial production sector, especially companies and enterprises that produce terminal products, the products produced must be pasted or printed with labels before they are sold. The content of the label includes: commodity trademark, origin, production date, effective date, bar code, company logo, address, telephone information, user guide, electrical nameplate, digital identification, operation symbol, serial number, etc. At present, there are many technologies for printing marks on commodities, such as screen printing, transfer printing, embossing, embossing, ink printing, etc. These methods are all surface printing. Due to mechanical damage, friction, chemical action and similar effects during the storage and transportation of goods, the marks on the goods will become blurred and incomplete, so t...

Claims

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Application Information

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IPC IPC(8): C08L67/03C08K9/06C08L21/00C08K3/22
Inventor 尹华张师军张薇张丽英王小兰李魁邵静波吕芸吕明福刘涛张浩陈力
Owner CHINA PETROLEUM & CHEM CORP
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