The automatic packaging film often encounter problems

With the widespread application of automatic packaging film, the higher the attention of the automatic packaging film, here introduces a automatic packaging film under a series of common problems in bag, packaging put forward these problems, is for the convenience of customers in the acceptance of color printing film products have a reference standard. 1, the tension is not smooth smooth automatic packaging film tension is usually characterized by too close, the outer membrane volumes layer. If used in automatic packing machine this kind of roller, will form the packing machine running is not smooth, presents the bag sizes, excessive tension membrane migration, sealing side to wait for a phenomenon, lead to packaging products not up to standard. Roll of film for this type of problem, the packing advice do return processing. Automatic packaging film tension is not smooth mainly film reel when cutting into the volume and the tension imbalance. Is at present most of the film roll slitting machine tension control installation, can ensure the cutting quality of roller, but sometimes because of operational reasons, the size of the reason for the equipment and in and out of the volume and weight difference is too big, and many other factors influence, these can lead to tension not smooth roll of film. Packaging production process, the elaboration of test equipment, standard equipment operation, ensure that every product quality, the roll of film tension balance. 2, end of uneven usually automatic packaging film request smooth end face, concave and convex beyond 2 mm will be assumed to be nonconforming, will usually be rejected. Transverse uneven film roll will form the same automatic packing machine is unstable in operation, excessive tension membrane migration, sealing side to wait for a phenomenon. Form roll film face uneven reason mainly has: cutting equipment operation is unstable, thin film thickness is uneven, in and out of the roll tension imbalance, etc. , can be so check recuperation. 3, wave bending uneven surface wave surface is refers to a film appearance, undulate. This quality defect will directly affect the operating performance of a roller in the automatic packing machine, and affects the quality of the final packaging products, such as the tensile properties of the packaging materials, sealing strength variation, printing design, molding bag deformation, etc. If this kind of quality defect is very obvious, the roller can be used in automatic packing machine. 4 excessive, cutting bias often request of automatic packaging film cutting to control within 2 ~ 3 mm. Cutting and bias will affect the forming the integral effect of the bag, such as pattern position offset, not in good condition, molding bag asymmetry, etc. 5, poor quality of joint, joint quality is common on the number of joint, joint quality and joint mark request. Usually roll film joint number of standard is: 90% of roller joint number less than 1, 10% of roller joint number less than 2. When roller diameter greater than 900 mm, the joint number of requests for: 90% of roller joint number less than 3, 10% of the roller number can joint in 4 ~ 5. Roller joint should level off, lubrication, strong, can't stack lap joint, joint central position best in two patterns, and adhesive tape shoulds not be too thick, otherwise you will present the card film, film and formation of downtime, affect the normal operation of automatic packing machine. Also, want to have obvious signs, joint to facilitate inspection, operation and disposal. Often give customers to provide automatic packaging film is not the use of joint, because of the existence of this joint is in an unstable factors on the quality of products. 6, core winding deformation core winding deformation can form roller can't normal device on the packaging machine automatic fixture. The cause of the forming roller core winding deformation is mainly damage roll core, storage and transportation link volume membrane tension is too large crushing roll core and core winding quality is poor and low strength. About the core winding deformation of rollers, returned to the manufacturer to replace the core winding and rewinding. 7, roller direction error most automatic packing machine for film roll out film direction has the certain request, for example, is the bottom of the first out or the top first out, this is mainly based on the structure of the packaging machine and packaging design of product packaging design. If film roll direction error, needs rewinding. Usually the user in roller quality specifications have understood the request, normally this kind of question, it is very rare. Number 8, bag can not meet the requirements usually roller length as the unit of measurement, such as km/roll, detailed numerical mainly according to the packing machine for film roll of maximum overall diameter and load ability. Rolled on both sides of supply and demand are very concerned about membrane bag quantity, most users will have the inspection rollers cost index, combined with the roller is the date of delivery acceptance no good way to stop the precise measurement inspection, thus rendering bag number lack often provoked both sides of the debate, usually through consultation to deal with. Packaging adhere to is to provide enough length + customer loss of the length of the film to the customer, make sure that the bag quantity meet the needs of customers. More than 9, product damage product damage attacks in cutting and complete to the delivery of this phase, the main roller damage ( Such as cut, tear, holes) , membrane (pollution, the outer packing damage ( Damage, water spray, pollution) And so on. This kind of problem not acceptance by the supplier, after the acceptance is handled by the buyer himself, so we should pay attention to in the process of storage and transportation completes the protective measures. Tags: automatic packaging film automatic package printing roll of film