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Production of paper and plastic bags, with the blessing of packaging (certified), paper and plastic bags
Information Name: | Production of paper and plastic bags, with the blessing of packaging (certified), paper and plastic bags |
Published: | 2015-08-06 |
Validity: | 0 |
Specifications: | Any |
Quantity: | |
Price Description: | |
Detailed Product Description: | Suture bag strength index is the most important, the most critical indicators in plastic bags GB / T8946 and composite plastic bags GB / T8947 national standards, paper bags wholesale, clear and sew the seam to the bottom to pull stretch load. The main factors affecting the strength of the suture is a suture types and models, pitch size, stitch, curling or folding the suture to the size of the bag side, eager and cold cutting methods. Fumo bags for cold cutting, crimping process commonly used as cold cut edge of the suture may warp from the weft tear out along with plastic bags, composite plastic woven bags, container bags, cement bags, all the appearance of a lack of quality Making the process is not always caused. However, the bag is the last step of a process, but also to ensure the quality of the final steps. Ordinary woven bag process indicators primarily appearance tolerances, tensile force after the end of the seam or hem direction, clarity of printing inks and printing other parts of the cleanliness, layout position accuracy, suture stitch, needle distance, and suture needle off, break and other shortcomings of the requirements of a draw than the 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 the draw 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, under normal circumstances , draw ratio is preferably maintained at 4-8. b. The blow up ratio, blow molding, blown film tube than the diameter of the bubble and the original die diameter is called the blow ratio. apparently flat membrane no problems blow up ratio In theory, the blow-up ratio increases, the film is stretched transversely oriented action as possible, paper bag production, tensile strength, the better, but actually produce in not too high, so as not to cause a serpentine swing, uniformity of decline, the film thickness range, wrinkled, etc. Generally blow ratio control between 2.0-3.5, the maximum should be no more than eight. c. draft ratio, when the flat wire drawing unit length divided wire (blank wire) the length of the draw ratio, the price of paper and plastic bags, or described as drawing (two pull) speed and traction (a pull) ratio of drawing speed ratio. draft ratio is Flat Yarn Production The most important process indicators. draw ratio, also known as draw ratio, draw ratio. Biansi uniaxially stretching in the drawing is carried out a temperature below the melting point, the stretching process during orientation, in order to obtain high strength and Biansi Other physical and mechanical properties. 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. Judging from the production process required, pull rate is lower than the pulling speed, to edge wire reheat setting a retraction, the inner Biansi stress relief, get a strong pull and excellent elongation. retraction ratio , also known as shape than under normal circumstances, a recovery ratio of between 0.96-0.99 .a draw ratio is extruded film extrusion speed traction speed ratio, paper and plastic bags from the film opening, it is not only for flat film , but also for tubular film, by controlling the draw 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 one extruder die gap is substantially fixed, smaller amount of adjustment, under normal circumstances, is appropriate traction ratio remained at 4-8. b. blow ratio, blow molding, tubular film blowing bubble diameter than the original diameter of the die, called blow-up ratio. Obviously a flat membrane no blow than the problem. In theory, blow-up ratio increases, the film is stretched transversely oriented role better tensile strength as possible, but in fact can not be too high yield, avoid serpentine swing down uniformity of film thickness ranging wrinkled etc. Generally blow ratio control between 2.0-3.5, the largest not more than 8 should be. c. draft ratio, flat pull When stretched, split unit length wire (blank wire) multiple of the length of the draw, or described as drawing (two pull) speed and traction (a pull) ratio than the speed of drawing. draft ratio is Flat Yarn Production The most important process indicators. draw ratio, also known as draw ratio, draw ratio. Biansi uniaxially stretching in the drawing is carried out a temperature below the melting point, the stretching process during orientation, in order to obtain high strength and Biansi Other physical and mechanical properties. 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. Judging from the production process required, pull rate is lower than the pulling speed, to edge wire reheat setting a retraction, the inner Biansi stress relief, get a strong pull and excellent elongation. retraction ratio , also known as shape than under normal circumstances, a recovery ratio of between 0.96-0.99. Paper bag production, with the blessing of packaging (certified), paper and 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