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| No.13630797
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Information Name: | Plastic packaging production _ with the blessing (Online) _ plastic bags |
Published: | 2015-06-19 |
Validity: | 0 |
Specifications: | Any |
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Detailed Product Description: | First, the flat yarn production technology indicators divided into four categories: 1. materialized modified index, the main modification, compounding ratio, functional additives add ratio, used recycled materials blending ratio 2. is physical flow. change targets, mainly draft ratio, the price of plastic bags, blow ratio, draft ratio, retraction than .3 mechanical performance, there are pull-off force, the relative tensile force, elongation at break, line speed linear density deviation is 4. tolerances indicators, mainly Biansi thick, flat wide, such as plastic bags are generally made with a secondary material or materials used to do, their prices are different, from the industry point of view, plastic custom bags, look woven materials are recycled materials, semi-permeable, or new material, plastic bags produce the best quality new material, can be reused, the original raw material production of plastic bags in the outdoor time is almost 8 months or more, and the quality of production of bags with recycled materials is rather poor, but using recycled materials to make plastic bags is their space applications, such as plastic bags loaded with cement, are not required to use the new material, so Select the new material do or do two materials, according to their own circumstances a draw ratio is extruded film speed and the speed of pulling out from the membrane than the mouth, it is not only used for flat film, but also for tubular film, by controlling traction ratio, the film is slightly oriented in the pulling direction. Traction control is to control the thickness ratio of the extruded film is cooled after the only effective means because the die gap of an extruder substantially fixed, regulate smaller amounts, general case, draw ratio is preferably maintained at 4-8. b. The blow up ratio, blow molding, than, plastic sales bubble blown film tube diameter and the diameter of the original die, called the blow-up ratio. apparently flat the film does not blow than the problem. In theory, the transverse direction orientation role blow ratio, the better the film, plastic bags, tensile strength, the better, but actually produced in the not too high, in order to avoid snake shaped swing down uniformity of film thickness ranging wrinkled etc. Generally blow ratio controlled between 2.0 to 3.5, the maximum should be no more than eight. c. draft ratio, flat stretch, the Split filaments per unit length (blank wire) length of the draw ratio, or described as drawing (two pull) speed and traction (a pull) ratio of drawing speed ratio. draft ratio is the most important production Biansi process indicators. draft ratio, also known as draw ratio, the draw ratio. Biansi uniaxial tensile drawing is conducted at a temperature below the melting point, the stretching process is oriented process so Biansi high strength and other physical mechanical performance. In general, the draft ratio control in 4-7 times, the special needs of flat yarn, involving 11 times more than Kodak. d. recovery ratio refers to the ratio of the flat wire pull-out speed and traction speed from the production process needs point of view, the speed is lower than the pull-off speed, to edge wire reheat setting a retraction, the inner Biansi stress relief, get a strong pull and excellent elongation recovery ratio, also known as stereotypes than under normal circumstances, a recovery ratio of between 0.96-0.99. plastic packaging production _ with the blessing (Online) _ plastic bags provided by the Qingdao Packing Co., with the blessing. Packing Co., Ltd. Qingdao with the blessing (www.qdtongfu.com) is in Qingdao, Shandong, plastic bags leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. With the blessing of the leadership in the packaging with the staff warmly welcome all inquiries negotiations to create, with the blessing of packaging a better future. |
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Copyright © GuangDong ICP No. 10089450, Packing Co., Ltd. Qingdao with the blessing All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 28558 visitor
Copyright © GuangDong ICP No. 10089450, Packing Co., Ltd. Qingdao with the blessing All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility