The fourth stage of leather processing

by:JIYALI     2021-05-15
In the first, second, and third processes of leather processing, we talked about the oil side of the shovel. Next, let's talk about the fourth process table.

In the leather processing process, the production of the countertop process is divided into two parts: fabric and lining.

Let’s talk about the fabric first:

1. Painting position: All painting positions are reduced by half according to the paper grid position, so as not to be difficult to clean. Shift. (Note: Mercury pens are used for all painting positions, ballpoint pens or other painting positions are not allowed)

2. Folding: It must be in accordance with the shape of the original piece. Whether it is a support or an empty folding, the edges cannot be large or small. It's not the same, it's straight and smooth, and there can be no big or small sides, or bursts, or corners when brushing.

3. Paste: The glue should not be too much, the glue should be smooth, no wrinkles, the position should be aligned, stick well, the bottom should be one line lower than the surface, and the inside should not be exposed.

4. Folding in the fabric bag: brushing can not exceed 1 point of the hemming position, the hemming size is the same, the corners are round and smooth, and no wrinkles are allowed.

5. The bottom of the bag: the width of the glue should not exceed 1 point of the folding position, so as not to affect the operation of the sewing process due to the excessive width of the glue. When folding, the middle position is aligned, and the folding position is the same size and straight. It is produced according to the line drawing position, the corner position should be round and smooth, the corner position should be symmetrical, and there should be no height or skewing.

6. Bagging: The brushing position of the inner and outer bags is lower than the first minute of the bag mouth. The inner bag and the outer bag fit the requirements, and there should be no height or skewing.

7. Thread drawing: All upper thread parts must be threaded and glued. (If there is force, glue the glue after knotting, the glue must be glued to the bottom of the thread)

Secondly, the lining:

1. Before all the linings are produced, see if there is any Abnormal quality problems (such as chromatic aberration, drawn yarn, pick out in advance to reduce rework), grain or printed lining, must be produced separately.

2. When making the lining, apply light glue, and the glue position should not be too wide. Exceed the folding position by 1 point to avoid wrinkles and glue leakage after the lining is glued or folded.

3. When the lining needs to be supported or folded, if it is a light-colored lining, single white cardboard or white non-woven fabric is required. Double gray cardboard is not used to avoid yellowing of the lining. This affects the cleanliness and aesthetics of the surface.

4. When making linings or fabrics for sliding windows, the glue should not be too wide, the sticker board should be sticky, the fold must be straight, the four corners must not be burst, the four corners are perpendicular to 90 degrees, the rim The molding width is 3 points, and the fabric sliding window molding is 4 points.

5. When making the middle grid and inserting the bag, the brushing position should not exceed the folding position by 1 point. When folding in half, the cutting position should be aligned. The folding should not have large and small sides, and the folding should be straight and should not be wrinkled.

The above is the introduction to the countertop process in the leather processing process.

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