Construction technology of wallpaper

Wallpaper construction technology: 1. Construction preparation 1. When pasting, other decoration processes have basically ended, and all sites should be cleaned and dust-free. 2. Set up the workbench. The surface should be smooth and easy to scrub. 3. Mix the adhesive evenly according to a certain amount for later use. 4. Two buckets (cleaning paper towels) and two towels (wallpaper glue). 5. Prepare wallpaper knife, brush, roller, ruler, plastic scraper, wire elastic tool and wire pendant. Second, the construction process and construction technology 1. Before processing and pasting at the grass-roots level, the dirt and dust on the grass-roots level or the surface of the grass-roots level should be removed, and the pan-alkaline part should be neutralized and cleaned with 9% dilute acetic acid. There shall be no flying thorns, pits, sand grains and cracks at the grass-roots level, and the angle of yin and yang shall be straight. Smooth surface, roughening before pasting. After the base is cleaned, put putty on the base and polish it after drying. 2. Brush the primer with environmentally friendly varnish solution. , and brush the surface at the grass-roots level. 3. Frame elastic line shall be framed from the indoor front to the indoor dead angle according to wallpaper format, and the external corner shall be wrapped and the internal corner shall be overlapped. Play vertical lines according to the frame diagram, and indicate the number as the reference line for pasting. 4. According to the framing size of the wall, cut the paper according to the requirements of the spelling of wallpaper patterns, fill the corresponding numbers, reserve 30-50MM at both ends for cutting the paper, and lay it flat for use. 5. Brush the glue, first clean the workbench, then lay the cut wallpaper flat with the back facing upwards, evenly brush it with a large flat brush or roller, and fold the upper third and the lower two thirds of the glue surface into a tube for future reference. (wall covering, the back of the wall felt shall not be coated with glue, so as not to pollute the front. Only paint glue on the wall). 6. Stick the pasted wallpaper on the folded part, stick it on the wall, stick it on the wall (ceiling) vertically (horizontally) along the reference line, scrape it off with a plastic scraper or brush to drive away bubbles and excess glue, wipe off the wallpaper seams with a clean towel, and finally cut off the upper and lower excess parts with a wallpaper knife. If the natural edge of wallpaper is opposite to the flower, the paper edge after the flower can be stricter; If the natural edge is uneven and can't be filled, take a knife to sew and paste it. (That is, after the two sheets of paper are aligned and overlapped, they are glued together, cut off along the middle line of the overlapped part with a long ruler and wallpaper knife, tear off the two cut edges of the paper, scrape off the paper seams with a scraper, and align them strictly. ). The angle of the external angle is solid. Lap the seam at the inner corner and leave the seam on the backlight surface. Attention; Wall cloth and carpet can't be pasted with a knife. If the edge is irregular, cut it straight with a wallpaper knife before pasting it, and then paste it on the wall. Three. Key points of construction 1. Before construction, other processes should be completed to avoid pollution and damage to the surface. 2. For wallpaper or other raw materials entering the site, check whether the quality meets the design requirements. The wallpaper of the same model should adopt the same batch number or the same production date. 3. Stick all kinds of wallpaper according to the design regulations, choose the corresponding adhesive, such as moisture-proof, mildew-proof, fire-proof, moth-proof and so on. 4. The pasted base surface should be dry, the humidity of concrete and plastered wall surface should be around 8%, and the wood plywood wall surface should be around 12%. Waterproof wallpaper, adhesive and other materials should be used in the construction of rooms with high humidity and often wet walls. 5. During construction, the room temperature should be above 10 degrees. During construction and before drying, prevent sudden changes in flow and temperature. 6. When sticking a post, there can only be a straight seam of mosaic, and there can be no extended horizontal seam. 7. For the wooden plywood wall and ceiling surface, the round nail cap should be washed into the wooden surface first, and the nail cap should be coated with putty. After drying, sand paper should be used to smooth it, so as to prevent the nail cap from rusting in direct contact with the adhesive and polluting the front of the wallpaper. 8. Some wallpapers are too thin and have the phenomenon of penetrating the base surface. The base surface should be painted with a base color or base oil similar to the color of the sticker wallpaper to ensure pure skin color without losing its true color. 9. There should be no fine particles and impurities when mixing glue, otherwise the surface will not be smooth. 10. When mixing glue, the wall and cotton paper base should be thinner, and the ceiling and thick base should be thicker, so it should be handled as appropriate. 1 1. Wallpapers without flowers should be marked with numbers in the same direction and pasted in the same direction to avoid color difference caused by light refraction. 12. The wallpaper should be pasted in a position parallel to the main window to avoid light refraction and cracks. 13. When wallpaper is attached to the ceiling instead of adhesive, an appropriate amount of adhesive should be brushed on the paper to increase the adhesion. 14. When pasting with a knife, the knife edge cannot be repeated, otherwise it will be difficult to align the paper seams. 15. Don't open the window in the room being pasted or just pasted, so as to avoid wallpaper sticking due to excessive air flow and temperature difference. Iv. Analysis of common quality defects 1. The wallpaper cracked for a long time (1), expanded excessively, and shrinked after drying. (2) When pasting, the scraping force is too large, and the wallpaper is stretched too much, resulting in shrinkage after drying. (3) Sun exposure and strong wind caused uneven shrinkage and local shrinkage cracking. (4) When sewing with broach technology, the knife edges are repeated and the seams are obvious. (5) The light on the construction site is poor, and the operators are not strict in sewing. 2. The wallpaper fell off when it was glued (1), which was caused by missing brush and insufficient glue. (2) The scraper didn't clean the bubbles, some bubbles were isolated, and the wallpaper didn't stick to the base surface. (3) The wall is wet, the glue is not dry, the wall emits moisture, and the wallpaper is bulging and glued. (4) When the bottom oil is applied, the wall is not sealed, so that alkaline or other chemicals that can cause deterioration of wallpaper glue radiate out, resulting in glue failure and wallpaper cracking. As long as the above situation is avoided, it can be prevented. If bubbles are found, you can puncture the surface of wallpaper with a needle to release gas, then inject adhesive with an injection needle, and scrape and compact with a scraper. Fifth, the asymmetry of the overall effect pattern after wallpaper pasting. When pasting the home page, draw lines from the center line of the whole wall to both sides to ensure that the center pattern is complete and the two sides are incomplete symmetrical patterns. Or arrange the picture from two sides to make the patterns on both sides complete, and when arranged to the center line, form a symmetrical pattern larger or smaller than the complete pattern to ensure the overall symmetrical effect. 6. There is adhesive pollution on the front of the wallpaper. 1. Brush the glue evenly and properly. When the scraper is pressed, no extra glue will be squeezed out of the seam. The operator should be careful not to pollute the wall. 7. The edge of the wallpaper is irregular, with burrs and gaps 1. When the wallpaper knife is cut, the blade is not sharp. 2. The cutting time is not long enough and there are defects. 3. There are gaps between various edges and the base surface (the base surface is uneven). Eight, the wallpaper is refracted by light, and the surface brightness and color difference are uneven. 1. The wallpaper is not pasted properly. 2. The batch number and production date of the same type of paper are different. 3. The glue at the joint is not scrubbed clean, and a layer of glue film is formed after drying, which makes the wallpaper have uneven color difference under the refraction of light. Nine, the pattern is far away, not straight 1. The base surface is uneven, and the width of the wall is different from top to bottom, so it cannot be pasted vertically. 2. During construction, the operator's scraper technology is not good. X. Quality requirements: 1. The wallpaper must be pasted firmly, the surface color is consistent, and there are no bubbles, hollows, cracks, warps, wrinkles and stains, and there are no glue marks on the side. 2. Smooth surface, no ripple, close to decorative lines and seamless. 3. Each mosaic is horizontal and vertical, and there are patterns at the mosaic; The pattern is consistent, no seams are left, no overlap is found, and the face is upward away from the wall 1.5m, and there is no flat-fell seam. 4. The angles of Yin and Yang are vertical and angular, and the angles of Yin and Yang overlap smoothly, while the angles of Yang and Yang are seamless. 5. The edge of the wallpaper is straight and tidy, and there can be no paper hairs and flying thorns. 6. No column leakage, column filling, delamination and other defects are allowed.