1. Purpose and significance of marking material inventory: marking material inventory is equivalent to the BOM bill of some factories, which is different from the BOM bill in that the BOM bill of materials is only the result, and marking material inventory also includes the calculation process. It lists the dosage/cutting method of all materials needed in the bag-making process and the material part on the bag in the most economical and reasonable way.

2. The role of score counting:

A. Provide the unit dosage for calculating the cost of bag materials;

B. provide a basis for purchasing materials;

C. Provide standard dosage for warehouse issuing/production unit picking;

D. provide cutting standards for material preparation personnel; E. provide reference for quality assurance departments and production units.

3. Mark's calculation basis:

A submission documents: the submission documents include sample documents/contact documents/modification documents of the business and some modification opinions of the guests.

B samples: samples are customer samples/original samples/retained samples, etc. ;

C. type plate (and paper grid);

D. In addition to the above three bases, in the absence of samples and paper grids, materials are sometimes estimated according to drawings, so drawings sometimes replace samples and paper grids as an important basis for material estimation.

4. Units of counting mark: The commonly used units of counting mark are code (y) and inch (""), and CM/M/KG, etc.

5. Work flow of point number: bulk point number (single dose/standard dose) and sample point number (unit dose).

6. Composition of marking material inventory: the header and column header include: finished product code/issue document number/product name/order quantity/size/sample quantity/color number/production quantity, etc. MaterialNo./Name Specification Unit VersionNo. Specification Horizontal * Straight Single Unit Demand Single Bed Touch Number Horizontal * Straight Total Touch Number Denominator Molecule Remaining Proportion Allowance Rate Standard Dosage.

2. Calculation of main materials in tag counting: There are many calculation methods of main materials in handbag industry, such as area method/typesetting method and tag typesetting method, each with its own advantages and disadvantages. Mark typesetting can be divided into two situations, one is regular typesetting and the other is irregular typesetting.

1. conventional cutting and typesetting: conventional cutting and typesetting, usually measure the size of the original pattern or cutting first, and add the loss of 1/8 "or 1/4" on this basis. It depends on the specific situation (for example, the material with strong shrinkage is 1/4 "and the material with strong shrinkage is 1/8"). This size is the specification in the tag count (horizontal * vertical). Then the numerator/denominator is calculated according to the width of the material and the assumed length, so as to calculate the standard dose or unit dose. The calculation method is as follows: the number of pieces = the width (length) of the material/the width (length) of the cut piece (note: integer) = the width (length) of the cut piece × the number of pieces (note: the remainder needs to be added with enough integers and then 1 "). The first formula is used to find out how many blocks can be arranged in the direction of known material width (length).

2. Calculation of irregular cutting: For irregular cutting, in order to achieve the most economical purpose, we need an effective action-typesetting, also called marking typesetting, that is, arranging boards in the most economical way according to certain rules. The maximum/minimum value is obtained by typesetting, which is the specification (horizontal * vertical) in material inventory. Then, according to the width of the material and the assumed length, the numerator/denominator is calculated by combining the following formula. Number of pieces = [width (length)-maximum]/minimum *2+2 length (width) = (number of pieces -2)/2* minimum+maximum. The first formula is used to find out how many blocks can be arranged in the direction of known material width (length). The second formula is used for hypothetical permutation.

3. Measurement of auxiliary materials:

1. Auxiliary materials that need to be cut with a knife, such as curved zipper tape, must pay attention to a certain direction, plus 1/4 "loss.

2. Ribbon /velcro tape/elastic belt /PP rope/elastic rope and other materials that must be processed first and then sent to the production unit are usually measured and calculated according to the actual material length, especially the reinforced ribbon requires 100% accuracy (measurement version).

3. For materials with large loss after running 100 yards, such as wrapping tape (including webbing for wrapping, main material wrapping and cutting) /P tube/elastic band, after measuring the actual length on the sample or sample, increase the width of 1~2 "as appropriate.

4. 100 yard zipper is measured by its actual length. For long zippers, the width of1/8 "~1/4" can be considered. The length of the strip zipper is the actual length between its two stops. In the process of counting zipper materials, we must pay attention to the fact that zipper sliders must be matched and must not be mixed.

5. When calculating the material of fasteners, please pay attention to the material/specification.

6. The snap button/snap button/corner button/protruding nail/hollow nail/screw and nut should be used together.

7. The measurement of special auxiliary materials, such as the elastic band around the side of the mobile phone bag will shrink after processing, so it is necessary to leave the loss of 1/8~ 1/4 ". In the process of hemming, the loss of herringbone nylon tape is sometimes as long as 5~8 "due to the large shrinkage, depending on the specific situation.

4. Allowable loss rate:

1. When making large goods, Mark has a column of "Allowable Loss Rate". This allowable loss rate refers to the loss of outsourcing materials such as printing/embroidery/hot pressing/trimming. There is a standard for this loss, and what percentage is given according to the order quantity.

2. The snap button/snap button/corn button/bump nail/hollow nail/screw/nut and other materials need to be given the corresponding allowance rate according to the order quantity due to the large loss during processing.

5. Problems that should be paid attention to in typesetting and material inventory:

1. When the main and auxiliary materials are expressed in words, their colors/textures/specifications, etc. It should be noted, and its name should be the full name, so as to distinguish similar materials and avoid confusion and mistakes.

2. When making, materials with special sections (such as oblique cutting/trimming/glue/voltage, etc.). ) be sure to mark it and give the loss.

3. When typesetting some special materials, we must pay attention to directionality, such as velvet/mesh cloth. Even if we don't save materials, we can only typeset in one direction.

4. The width of materials (main materials) cannot be 100%, so some space should be reserved.

5. When counting materials in a bag, the main and auxiliary materials must be measured in a certain order, from front to back/from top to bottom/from outside to inside/from left to right, so as to avoid missing or wrong materials, so that the accuracy of counting materials is close to 100%.

The responsibilities and obligations of the inventory personnel of intransitive verb materials;

1. Inventory personnel should do their duty, calculate the bag cost timely and accurately, and complete the quotation.

2. Have the responsibility to review the beauty/function/sewing of the bag, have the right to control the cost of the bag, and have the right to oppose the printmaker's practice and put forward suggestions for improving the sewing method of the lathe worker.