I: The main process is feeding base paper-coating-drying (gluing)-cooling-printing-drying between boards-softening-embossing-cooling-trimming-material accumulation, inspection-coiling-packaging-boxing-warehousing. Two: process decomposition 1, base paper sending: 1) base paper type: base paper is made of multilayer paper, which is easy to fall off after use. B: The width of base paper is about 565MM, the basis weight (paper weight/m2) 100 g or 99 g, and the transverse immersion elongation is not more than 1.5%. 2) During normal production, the sending tension of base paper is controlled within the range of 12- 16 kgf, and the tension is not controlled in the case of paper connection and paper breakage. 2. Coating coating is to evenly coat the slurry on the surface of the base paper with a coating knife. Coating formula: Paste A is mainly composed of PVC, DOP, calcium carbonate, stabilizer, titanium dioxide and viscosity reducer. Its composition ratio is as follows: assuming that PVC is 100PHR, DOP is 60PHR, calcium titanate is 75PHR, titanium dioxide is 15- 18 phr, stabilizer is 3PHR, and viscosity reducer is 10-20 phr. If foamed wallpaper needs to be produced, foaming agent 1-3 phr should be added in the foamed state. If you need to produce flame retardant wallpaper, you need to add a flame retardant machine 10- 15 phr. In addition, whitening agents, antioxidants and other ingredients can be added according to the different use requirements of the products. B: PVC powder, DOP and calcium carbonate are the main raw materials, and calcium carbonate is the filling component. Because the above three raw materials are transparent after gelatinization, it is necessary to add titanium dioxide to create a white background to cover them. Stabilizer can slow down the gelatinization process, and viscosity reducer can adjust the viscosity of paste. C: The raw materials used must pass the inspection, have a quality assurance certificate or be released after being confirmed by the superior supervisor. D: All the raw materials used should be stored in a fixed location, and corresponding identification should be done at the same time. During production, measure the viscosity of the paste with an 8 mm measuring cup, and control it for about 8-25 seconds. 3. Drying is to dry (glue) the surface coating of base paper by using gas heater and hot air circulation system. The drying furnace is divided into three zones, and the temperature of each zone is set from bottom to top. A: Foamed wallpaper 1 zone: 190- 10, zone 2: 2 10- 10, zone 3: 230- 10. B: Non-foaming wallpaper 1 zone: 150- 10, zone 2: 170- 10, zone 3: 190- 10. C: Series 79-77: Zone 1: 185- 10, Zone 2: 205- 10, Zone 3: 225- 10. 4. Cooling Between drying and printing, the hot fabric is cooled and hardened by circulating chilled water through two cooling wheels. 5. Printing means using printing wheel and circulating ink. Different patterns use different printing wheels to print the required wallpaper patterns on the fabric surface. Scrape off the ink with a special printing scraper with a width of 60MM and a thickness of 0. 15MM. During the production process, the measuring cup is used to measure the ink viscosity, and the ink viscosity is controlled within 25-40 seconds, and the viscosity of pearl powder, gold powder and ink can be appropriately relaxed within 60 seconds. Under normal production conditions, tension control is not within this range. 6. Interplate drying refers to drying each printed pattern by hot air circulation with a separate gas heater between each plate printing to prevent ink confusion between the front and back plates. 7. Softening Softening is to soften the soft and hard fabrics with an electric heating cover before embossing. The heating cover is heated by ceramic and quartz tube. 8. Embossing means that after the fabric is softened, the fabric is pressed with an embossing wheel to produce the corresponding embossing effect. Embossing is divided into cross stitch and cross stitch. The surface temperature of the fabric at the moment of contact with the embossing wheel should be controlled within the appropriate temperature of 168- 185, and the temperature value should be controlled within+10% in the whole batch of products after being determined. Under normal circumstances, the Zhang Liwei before embossing is 28-35 kgf, the Zhang Liwei after embossing is 28-35 kgf, the Zhang Liwei before embossing is 28-35 kgf, and the Zhang Liwei after embossing is 17-20 kgf when embossing is wrong. 9. Cooling After softening and embossing, the fabric is cooled and hardened by circulating cooling water through an air cooling system and two cooling wheels. 10, ear cutting is to cut the wallpaper into a width of about 530MM or other special specifications with an ear cutter. The width of cutting ears is 530-+5 mm in principle. In case of special trimming, the maximum width can be adjusted to meet the needs of the opposite side. The sum of eccentricity of the left lower cutter and the right lower cutter should be less than 60 microns. 1 1, stacking is to use a long platform to slow down the speed of wallpaper, which is convenient for workers to check the surface defects of wallpaper. If defects are found, they should be marked immediately and removed during winding. 12, roll paper roll paper is to roll the product into a single product according to the required size with a roll paper machine. In principle, the size of each roll of wallpaper is 10M. If there are special requirements, roll according to the size required by customers.