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 Wysłany: Nie 5:13, 08 Maj 2011 Temat postu: oakley solbriller How to improve the quality of pr |
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How to improve product quality carton
Is to ensure product quality an important part in the production of corrugated board laminating process, we should primarily focus on testing the viscosity of the glue, because once the glue is a problem, will result in large quantities of defective products or waste. The foam on the test after the semi-cardboard, can be and the adjustment of other parts of the machine, whether the more appropriate level. Through the production process, inspection, timely discover and correct problems and ensure quality of corrugated board laminating. 1. Flatness of the plate directly affects the quality of corrugated version of the print, so the sticky version of the previous version of the base plate should be clean, because the foreign body to prevent the adhesion of leaving the local layout thickening. If for larger gaps in the layout, the use of sporadic production of a number of small plates to put together printed version should be using the same batch of materials for production, because different batches to prevent the existence of the thickness of the plate affect the quality of printing errors . Paste the plate after the sealant should be used to seal up the edges of the plate to prevent the printing or cleaning process, ink and oil penetration to the back of the plate, reducing the strength of adhesive leaving their plates shift, resulting overlay does not standard quality. 2. Printing color control. Directly affects the quality of water-based ink printing color pure cardboard and color effects, so the quality and stability of the ink should be selected, it is very important to control the link. Good quality ink, even relatively delicate, diluted with water or alcohol should be no precipitation, agglomeration, mixing time and no significant bubble, post-deployment with other ink colors,[link widoczny dla zalogowanych], compatibility can be good, the phenomenon should be all compatibility , with ink after the pure tone. In addition, maintaining good accuracy and ink roller cleaning, as well as the appropriate printing speed and constant speed of printing, color printing is also an important part of prevention. 3. Layout printing resolution control. To improve the clarity of the printing layout - Dai take packing degree, to select good wear resistance, flexibility, moderate hardness plates and plates to control the production process and quality, to prevent paste and print quality problems occur is not clear . On the other hand,[link widoczny dla zalogowanych], the ink rollers must not be too thick, and the printing roller pressure and the pressure should be appropriate to dwell even in print, graphic cardboard surface is no obvious bump marks appropriate. If the layout of existing small lines, text, there are large areas of the field or line layout, the layout in a large area corresponding to the appropriate parts of a thin layer of tape padded to make a small layout with a large area are basically the same layout of the ink, to prevent small layout because the pressure is too great and there paste version. If the layout structure of the field and the pressure required for a small layout and a large disparity between supply of ink,[link widoczny dla zalogowanych], then small sections can be separated with the field layout for printing, which is to be divided into two with a printed version may be better to avoid printing paste version ills, to ensure the clarity of printed products. 4. Improve product overprint precision control. Some of the roughness of corrugated board is not good, more or less warpage phenomenon, so that if the paper roller and guide roller between the pressure is too small, it is easy to make cardboard delivery location is not accurate. In addition, the feed chain and the former regulations for wear, looseness, also easily lead to overprint are not allowed to board. Therefore, the printing of corrugated board according to the thickness, adjusting the paper guide roller with a suitable gap between the rollers. Also note on the feed chain and the former regulations irregularities in a timely manner. Fourth, the carton with overlapping parts of the tongue, it is generally fixed by adhesive bonding molding. As part of the tongue area of overlap is small, usually about sizing an area of between 75 ~ 90cm, the parts of the adhesive is solid,[link widoczny dla zalogowanych], the strength of the carton and packaging quality and greater impact. Therefore, the tongue must not ignore the overlapping parts of the bonding process control. We have bonded because of bad tongue lap, so there is easy calendar bulk pack carton phenomenon,[link widoczny dla zalogowanych], by the quality of customer complaints and returns rework, the economy has also been some losses. Later, we improve on the adhesive process, the original use of the white latex (polyvinyl acetate latex) and CY-C chemical adhesive paste mixed at 6:4 deployment, and add about 3% of cyclohexanone, thereby increasing the adhesive viscosity and permeability, pressure to solve the problem of poor quality glossy paper adhesion, improved bonding strength carton forming. In summary, the quality of corrugated products for many reasons, there is the raw material factors, but also because technology; has operations factors, there are objective reasons for the machine; have a factors, there are a variety of the reasons for the coexistence of adverse events. As long as we focus on the quality of the source of raw materials and part of the production process, the strict and careful checks and process control technology, can effectively prevent the occurrence of various quality problems.
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