Computer wallpaper or? What about computer wallpaper? Right-click on the image and it will show Set as Wallpaper, then click Confirm.

What if it is wall wallpaper? As follows:

Wallpaper should not be "do-it-yourself" application

A manufacturer selling imported wallpaper told reporters that it is not impossible for many consumers to like DIY, but some patterns are complex and require precise splicing. The quality of wallpaper is more guaranteed if it is laid by experienced professionals who are familiar with wallpaper performance. For example, when laying between each piece of wallpaper, a little glue will overflow. Be sure to wipe it clean with a clean damp towel, otherwise the seams of the wallpaper will easily turn yellow. Many "sequelae" are caused by improper construction.

If you absolutely trust your craftsmanship, here are some suggestions for you

1. Construction preparation

1. When pasting, other decoration processes have been completed At the end of the day, all areas should be cleaned and dust-free.

2. Set up the workbench. (The surface is required to be smooth and easy to scrub).

3. Mix the adhesive thoroughly according to a certain amount and prepare it for use.

4. Two buckets (for cleaning paper towels) and two towels (for wiping wallpaper glue).

5. Prepare wallpaper knife, brush, roller, ruler, plastic scraper, thread elastic tool and thread weight.

2. Construction procedures and construction techniques

1. Base layer treatment

Before pasting, the dirt and dust on the surface of the base or base layer should be removed and any general The alkaline parts are neutralized and cleaned with 9% dilute acetic acid. There should be no flying spurs, pitting, sand and cracks on the base layer, and the yin and yang angles should be straight. The surface is smooth and roughened before pasting.

After cleaning the base layer, apply putty on the base layer and sand it after drying.

2. Apply primer

Use environmentally friendly varnish solution as a primer to paint the base surface.

3. Framing elastic lines

Firstly, lay out the wallpaper according to the wallpaper format on the front of the room facing the dead corner of the room. The outside corners should be wrapped and the inside corners should be overlapped, and according to the dividing lines Plan to pop up the vertical line and number it as the baseline for pasting.

4. Paper cutting

According to the wall frame size, cut the paper according to the wallpaper pattern parquet requirements, number it accordingly, and reserve 30---50MM at both ends for tailoring. Cut and lay flat for later use.

5. Apply adhesive

First clean the workbench, lay the back of the cut wallpaper upward, apply it evenly with a large flat brush or roller, and press the upper three One-third, the lower two-thirds, the rubber surface is folded and rolled into a tube for preparation. (Do not apply glue on the back of wall coverings or tapestries to avoid contaminating the front. Only apply glue to the wall).

6; Paste

Expand the upper folded part of the glued wallpaper, paste it on the wall, and paste it vertically (horizontally) on the wall (ceiling) along the baseline. Use a plastic scraper or brush to smooth out the bubbles and excess adhesive, wipe the seams of the wallpaper with a clean towel, and finally cut off the upper and lower excess parts with a wallpaper knife.

If the natural edge of the wallpaper is facing the flowers, then the paper edges should be aligned tightly after the flowers are aligned; if the natural edges are uneven and the natural edges cannot be seamed, then use the knife method to overlap the seams and glue them together. (That is, after aligning the two pieces of paper, overlap them a little and glue them together. Use a long ruler and a wallpaper knife to cut along the center line of the overlapping part. Tear off the two cut paper edges, and use a scraper to smooth the paper seam. Just be strict). The corners of the sun corners are wrapped firmly. Sew at the inner corner, leaving the seam on the backside. Note; (Wall cloth and wall felt cannot be cut off after being applied. If the edges are not neat, they should be cut straight with a wallpaper knife before being applied and then pasted on the wall).

3. Construction points

1. Before construction, other processes should be completed to avoid contamination and damage to the surface.

2. For wallpapers or other raw materials entering the site, the quality should be inspected to see if they meet the design requirements. Wallpapers of the same model should use the same batch number or the same production date.

3. When sticking various types of wallpaper, appropriate adhesives should be selected according to design regulations, such as moisture-proof, mildew-proof, fire-proof, moth-proof, etc.

4. The base surface to be pasted should be dry. The moisture content of concrete and plastered walls should be about 8%, and that of wooden plywood walls should be about 12%. For rooms with high humidity and walls that are often wet, materials such as wallpaper and adhesive with waterproof properties should be used during construction.

5. During construction, the room temperature should be above 10 degrees. During construction and before drying, prevent drafts and sudden changes in temperature.

6. When pasting, there can only be smooth seams of the whole piece, but no horizontal seams of the joints.

7. For wooden plywood walls and ceilings, first drive the round nail caps into the wood surface, apply putty on the nail caps, and smooth them with sandpaper after drying to prevent the nail caps from directly contacting the adhesive and causing rust. , contaminating the front of the wallpaper.

8. Some wallpapers are too thin and appear to show through the base surface. The base surface should be painted with a base color or base oil that is similar to the color of the wallpaper to ensure that the complexion is pure and does not lose its original color.

9. When adjusting the adhesive, there should not be any fine particle impurities mixed in, otherwise the surface will not be smooth.

10. When preparing adhesive, use thinner adhesive for walls and tissue bases, thicker adhesive for ceilings and thick base surfaces, and handle as appropriate.

11. For wallpapers that do not have flowers, numbers should be marked in the same direction and pasted together to avoid color differences in the wallpaper due to light refraction.

12. Wallpaper should be pasted parallel to the main window to avoid light refraction and seams.

13. When sticking wallpaper with adhesive backing to the ceiling, in order to increase adhesion, an appropriate amount of adhesive should be applied to the paper.

14. When pasting with the knife method, the knife edges cannot be repeated, otherwise it will be difficult to seal the paper seams tightly.

15. Windows should not be opened in the room where the wallpaper is being pasted or has just been pasted, to prevent excessive air flow and excessive temperature differences from causing the wallpaper to open.

4. Analysis of common quality problems

1. Wallpaper cracks at the seams

(1) The softening time is too long, the expansion and expansion are too large, and shrinkage joints are formed after drying.

(2) The scraper is applied with too much force when pasting, causing the wallpaper to stretch excessively and forming shrinkage seams after drying.

(3) Exposure to sunlight and strong winds can cause uneven shrinkage and cause local dry shrinkage and cracking.

(4) When using the knife-drawing process to sew, the knife edges are repeated and the seams are visible.

(5) The lighting at the construction site is poor and the operator is not strict about the seams.

2. The wallpaper peels off after the glue is opened

(1) It is caused by missing spots and insufficient glue amount when applying glue.

(2) The scraper did not flatten the bubbles, there were bubbles isolated, and the wallpaper did not stick to the base surface.

(3) The wall is damp, the adhesive does not dry, the wall emits moisture, and the wallpaper bulges and opens.

(4) Failure to seal the wall when applying primer causes alkaline or other chemical substances that can cause the wallpaper glue to deteriorate, causing the adhesive to fail and the wallpaper to open.

As long as the above situations are avoided, they can be prevented and treated. If bubbles are found, prick the surface of the wallpaper with a needle to release the gas, then use an injection needle to inject adhesive, and use a scraper to flatten and compact it.

5. After the wallpaper is pasted, the overall pattern will be asymmetrical

When arranging the pattern before pasting, arrange it from the center line of the entire wall to both sides to ensure that the center pattern is complete and the two sides are Incomplete symmetrical pattern. Or arrange the pattern from both sides to make the patterns on both sides complete. When arranged to the center line, a symmetrical pattern that is larger or smaller than the complete pattern is formed. This can ensure the overall symmetrical effect.

6. Adhesive contamination on the front of the wallpaper

1. When applying glue, apply an even and appropriate amount. This can be avoided if there is no excess glue squeezed out from the seam when the scraper is pressed.

2. The operator should be careful not to contaminate the wall

7. The edges of the wallpaper are irregular, with burrs and gaps

1. When cutting with a wallpaper knife, Caused by the blade not being sharp.

2. The material is not long enough when cutting and is defective.

3. There are gaps between various edge strips and the base surface (the base surface is uneven).

8. The wallpaper is refracted by light, and the surface brightness and color difference are uneven.

1. The floral wallpaper is not pasted in the correct direction.

2. The same model of paper has different batch numbers and production dates.

3. The adhesive at the seams has not been scrubbed clean, and a layer of adhesive film will form after drying. This film will cause the wallpaper to appear uneven in color under light refraction.

9. The pattern pulls and moves and is not straight

1. The base surface is uneven, the width of the upper and lower walls is different, and it is caused by the inability to stick to the vertical line when pasting.

2. Caused by the operator’s poor scraper skills during construction.

10. Quality Requirements

1. The wallpaper must be firmly adhered, the surface color must be consistent, and there must be no bubbles, hollows, cracks, edge warping, wrinkles and stains. Side view No glue marks at all.

2. The surface should be smooth, without ripples, and closely connected with the decorative lines, without any gaps.

3. The splicing of each piece should be horizontally and vertically, and the patterns at the splicing points should be consistent; the patterns should be consistent, not separated from the seams, and not overlapped. When viewed from a distance of 1.5 meters from the wall, the seams will not be visible

4. The yin and yang corners are vertical and sharp, the yin corners are overlapping and smooth, and the yang corners are seamless.

5. The edges of the wallpaper should be straight and neat, with no paper fluff or flying spurs.

6. There should be no defects such as missed posts, patched posts and delamination.

Requirements for base treatment of wallpaper construction

Wallpaper pasting plays an important role in indoor wall decoration, and the quality of base treatment directly affects the wallpaper finishing effect. In addition to mastering the performance of the wallpaper itself and reasonable construction methods. The base layer is already an important factor in our quality considerations before construction.

Requirements for the surface of the wood base layer

(1) The moisture content of the wood base layer shall not exceed 12%.

(2) The wood surface should be smooth and free of dust, dirt and other dirt.

(3) If there are nail caps on the wood surface, sink the nail caps into the wood surface first, and then fill them with putty to prevent rust and contaminate the surface.

(4) Gaps on the wood surface , and uneven parts should be filled with putty and smoothed

(5) Polish with sandpaper to achieve a smooth surface.

(6) Apply nitrocellulose varnish (3 dilutions: 1 paint) and let it dry.

Concrete and plastered surface base

(1) The moisture content of the wall base is below 8%---10%.

(2) The base of the wall should be solid before putty leveling, and there should be no efflorescence, hollows, looseness, etc.

(3) Clean the wall, neutralize the efflorescent parts with 9% dilute acetic acid aqueous solution, and then rinse with clean water.

(4) Holes and cracks are first repaired with gypsum and then smoothed with sandpaper after drying.

(5) After removing the attachments, scrape the putty on the base layer one to three times with a thickness of less than 0.5MM each time. Polish it with sandpaper each time and wipe the surface with gauze.

(6) Apply primer, dilute the environmentally friendly nitrocellulose varnish with thinner, and use a roller to paint the wall once dry before construction.

Note: (The paint ratio is 3 thin: 1 paint)

Walls in other situations

(1) Walls that have been painted with wall paint are not allowed To paste wallpaper directly on the wall, first soften the wall base putty with water, shovel off the original base layer, and then stick it after it is dry according to the 5th item of the above 2 major items (wall paint includes vertical paint, Dulux, etc.).

(2) For new house waterproof putty walls, if the wall is flat and the yin and yang angles are straight, it is not necessary to apply varnish.

(3) Most of the wall putty on the base of the old wall is powdered, so the wallpaper cannot be directly pasted. It must be pasted after treatment. The specific method is according to the fifth sub-item of the above two major items.

Process and others

(1) When pasting, other decoration projects are basically completed, and all sites should be cleaned and dust-free. Doors and windows should be closed, and the ambient temperature should not be lower than 10°C and the relative humidity should not be higher than 60%. After pasting, close the doors and windows for 1 to 3 days, and then open the windows and doors for ventilation after they are completely dry

(2) For wallpapers that see through the base surface, a layer of base similar to the color of the wallpaper to be pasted should be painted on the base surface. Color or base coat to ensure that the surface color of the wallpaper is pure and does not lose its original color.

Selection and construction treatment of wallpaper decoration.