What Are The Inspection Conditions And Methods For Making Leather Shoes?

1. Testing conditions, measuring tools and testing methods for making leather shoes.

This standard is applicable to the shoe inspection of leather shoes, sports shoes, sports shoes, training shoes, walking shoes, fitness shoes, casual shoes, etc., made of various techniques. Leather shoes for labor protection Leather slippers The inspection of indoor leather shoes can be carried out with reference.

Two. Citation criteria:

Determination of adhesion strength of 1.GB 532 vulcanized rubber to fabric; 2.GB 2703 leather shoes Industrial terms; 3.GB 3903 peel peel strength test method; 4.GB 3904 footwear folding test method; 5.GB 3905 footwear wear test method; 6.GB 11413 leather heel strength test method; 7.ZBY 78003 leather shoes steel hook; 8.ZBY 78006 leather shoes outsole.

　 Three. Inspection conditions:

The inspection of appearance quality is carried out at room temperature and under sufficient light. The physical and mechanical performance tests are carried out under the conditions of corresponding test method standards and product standards.

　 Four. Inspection gauge:

1. vernier caliper 0.05mm; 2. steel ruler 1.0mm; 3. shoe with ruler 1.0mm; 4. steel right angle rule 3; 5. glass flat.

Five. Test methods:

1. whether the overall appearance of hand feel is correct, symmetrical, uniform, stable (parallel to the ground surface), clean, marking the full clarity of the Liu and whether there is no decolorization, pulp, cracks and other defects;

2. the side of the noodles should be put in the shoes and the middle finger of one hand should be inserted into the shoes. The distance between the fingers should be 15~20mm, and the thumb of the other hand should be lightly pressed on the side of the thumb in the two finger distance to see the change of the face. If wrinkles appear, the wrinkles will disappear after loosening.

3. pairs of split surface and split surface, one hand shoe, the other hand's index finger and middle finger into the shoe, the top is tight to help the inside, and visually changes the side surface, such as cracks in the coating layer, and is judged to be cracked. Leatherwear A crack appears on the surface of the layer.

4. pairs of bottom binding fastness, one handheld shoe, the other hand thumb pressing along the side of the mouth to see whether the glue is opened or disconnected.

5. heel assembly fastness, one handheld shoe, the other hand to follow, swinging to all directions, whether the hand feel and visual heel are loose.

6. press the thumb and forefinger on 1/2 sides of the length and width of the main heel with the thumb and forefinger. Press the thumb in the middle of Baotou to see if it is deformed or restored to its original state. (1/2) Use hand to touch and help the inner Baotou and the master to determine whether they are in peace or not.

7., the length of the front arm is measured with a shoe with a ruler attached to the front arm to measure the length of the front end of the front end of the shoe to the center point or the specific location of the front door.

8., the height of the rear band is closely attached to the middle seam of the back with the ruler with the ruler, and the height of the middle point of the assistant mouth is measured.

9. the rear slit is crooked. Put the shoes on the glass plate, use the steel square ruler to vertically point the middle point of the back, and use the steel ruler to measure the maximum offset of the back seam with the upper.

10. whether the stitching distance is uniform and the line is neat.

11. the length of the outsole, the length of the end point from the front end of the outsole to the outsole (or heel), the length of the 12. outsole and the length of the ends between the ends of the first to fifth toe, and the 13. outboard items according to the requirements of ZBY 78006.

14. the heel height is placed on the glass flat, and the steel vertical ruler is used to measure the vertical height of the shoe buckle and the upper edge of the rear part to the lower edge.

15. front toe, put the shoes on the glass flat, measure the vertical height between the plane and the ends of the bottom of the floor with steel ruler.

16. heel dimensions are measured with vernier calipers.

17., the shape of the heart is stable. The shoes are put on the platform, and the thumb is pressed into the waist of the shoe.

Six. Test items and test methods:

1. peel strength shall be carried out according to GB 3903 and corresponding product standards.

2. folding resistance shall be carried out according to GB 3904 and corresponding product standards.

3. wear resistance properties according to GB 3905 and corresponding product standards.

4. the strength of heel bonding shall be carried out according to GB 11413 and the corresponding product standards.

5. adhesion strength shall be carried out according to GB 532 and corresponding product standards.

6. the physical and mechanical properties of the hook are carried out according to ZYB 78003.