Water ink printing machine operating procedures: water ink printing machine printing skills
Abstract: Ink printing machine is the main equipment for carton production. Ink printing machine has the performance of automation, high precision, high speed, high reliability and safety, easy to use and maintain, and can be humanized to control the production of different grades of carton products to meet the user's high, medium and offset product production needs. The following, to understand the ink printing machine operating procedures, ink printing machine printing skills. Ink printing machine] ink printing machine operating procedures ink printing machine printing skills ink printing machine operating procedures a. Machine inspection work 1, the following routine checks on the machine; (1) check the unit and the workbench for other items. (
Abstract: Ink printing machine is the main equipment for carton production. Ink printing machine has the performance of automation, high precision, high speed, high reliability and safety, easy to use and maintain, and can be humanized to control the production of different grades of carton products to meet the user's high, medium and offset product production needs. The following, to understand the ink printing machine operating procedures, ink printing machine printing skills.
【Ink printing machine】Ink printing machine operating procedures Ink printing machine printing skills
Ink printing machine operating procedures
一、Machine inspection work
1、Perform the following routine checks on the machine;
(1) Check if there are other items in the unit and on the workbench.
(2) Check whether each oil level is normal.
(3) Wipe and check whether the printing plate is damaged.
(4) Run the machine to check if there is any strange noise.
(5) Each lubrication point must be oiled once.
2、Understand the operating condition of the equipment, run the machine to check if there are any strange noises.
1、Checking the handover records.
2、Receive the production designation order, first check whether the designation order is correct, understand the process requirements of the products to be produced, the production quantity and precautions, and mark the live parts printed in two shifts on the printing surface in order to trace the quality problems.
3、Prepare raw and auxiliary materials according to the specified order.
4、Read the product designation sheet carefully to understand whether the product has special requirements, such as.
(1) Whether inline varnishing is required;
(2) whether die-cutting and die-cutting requirements;
(3) whether there is a requirement for printing color sequence;
(4) Verify whether to print or touch the line first;
2, check the production of cardboard to see if you need to print in batches and avoid the occurrence of substandard products; (cardboard is strictly prohibited to sit on people or hand pressure, so as to avoid local denting, affecting printing)
3, in advance according to the printing color needs to set the ink volume and ink viscosity;
4, correct adjustment of machine pressure, printing speed, slotting position, reasonable arrangement of color sequence.
Operation specifications in production
1、Start the machine to feed the paper, produce one or two cardboards, check and pass, and start mass production.
2、Check the following aspects of the packing box with reference to the approved draft or approved actual sample:
(1) Graphic position;
(2) Varnishing position;
(3) box size;
(4) whether the graphics are complete
3. The following methods are adopted for checking the graphics:
(1) off draft inspection (from the signature draft) read through line by line; to avoid mistakes in the signature draft itself;
(2) according to the signature draft or sample check;
4、During the production process, random check at any time to see if there is any running position, if there is any color difference, if the graphic is clear and shortage, if there is any burr or tear in the slotting forming knife, if there is any stacking seam in the lid forming, if the pressing line is correct and if the pressure is appropriate. Quality problems are dealt with in a timely manner and marked at the defects to facilitate the detection of the latter process.
5, on the cardboard staff in the process of cardboard, strict inspection, control the quality of cardboard, such as found blistering, bending, dew tile, tearing and other bad cardboard, need to check out for other use.
6、The following problems should be found immediately stop processing:
(1) a large color difference and no ink phenomenon;
(2) the graphics are missing or the printing plate has problems;
(3) the printing surface is dirty;
(4) machine failure;
7, production at any time to observe the machine has no problems, and timely warranty.
8, found that material problems can not be solved on the spot should stop production, reported to the quality inspector, so that the relevant departments to solve, for the subsequent production preparations.
End of production operation specification
1、The printed qualified products are placed separately from the products to be inspected and marked clearly.
2、The machine manager arranges personnel to clean and maintain the machine in accordance with the "Machine Maintenance System".
3、Cut off the power and airflow.
Printing tips for ink presses
1, back exposure should be immediately after the main exposure, because the photosensitive activity will gradually disappear, resulting in a longer main exposure time and poor exposure tolerance.
2, through the back exposure can establish the base layer of the plate in order to get the desired relief and strengthen the adhesion of the polyester support film and photopolymer layer. Correct back exposure from the direction of the polyester support film exposure, can protect the plate during the development process of the fine pattern, and to prevent the relief collapse.
3, the main exposure time can be determined by the main exposure test, the light-sensitive resin becomes insoluble through polymerization reaction, the printing plate can reproduce the fine pattern on the film. Before the main exposure to hand-rubbed vacuum film to expel air so that the plate and negative film close together.
4, the printing plate must be dry, otherwise it will affect the thickness uniformity of the printing plate, after drying, do not let the printing plate and other objects in contact with the surface, do not use your fingers to touch the printing surface, otherwise it will leave traces. However, before de-stick, be sure to remove any spots on the surface of the printing plate. After de-sticky, to clean the back of the resin plate left residual spots, if not clean off these things, will affect the thickness uniformity of the printing plate and the adhesion of the mounting tape.
5, when the resin version of the guarantee layer torn off, the version of the light-sensitive speed rapidly decayed, should immediately place the film sheet on the plate or within 10 minutes for the main exposure in order to get the best results.
In the production of resin plates, it often happens that the fine lines are partially washed out or the relief of the negative part is shallow, which requires a special process to achieve the desired effect:
Adopt the "separate back exposure" process. Corrugated carton industry generally uses a plate thickness of 3.94mm flexible resin version, the graphic depth of 1.52 ~ 2.00mm best, the base is thin, the printing pattern of very fine parts can not withstand the conventional exposure, it is necessary to use the "separation back exposure" process. First confirm the film in a very fine line point and text area, with a mask cut into an area contour sample, first back exposure to the plate to establish all the grass-roots level, and then according to the film instructions to the mask accurately positioned on the surface of the polyester support film, and then back exposure to establish the required area of the grass-roots level, two back exposure time according to the required thickness of the grass-roots level to determine.