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The process for manufacturing footwear

What is the process for making footwear?, How is footwear made?

Subject: The process for manufacturing footwear

05-Aug-2011 QuimiNet Leather and footwear, Adhesives
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Footwear

Footwear manufacturing has not changed significantly over time. It is still done by hand using small-scale, mechanical equipment and rudimentary techniques.

What is the process of making footwear?

1. Acquiring the materials: the manufacturing of synthetic athletic footwear begins with the arrival of raw materials to the factory. The material is classified and arranged by: synthetic leather, dyes, polishes, soles, and adhesives.
2. Transportation to the Production Area: The selected materials are transported to the area where they will be assembled.
3. Cutting the Pieces: The synthetic leather is shaped on a mold that is based on a model for the shoe. This mold might be acquired by the manufacturer from another source.
4. Collecting the Pieces: Arranging the pieces in groups before the manufacturing begins. Each shoe requires from 7 to 12 pieces depending on the model.
5. Machining – this can require various processes:
 
- Folio: the code, batch number, model number, size or measurement of the athletic shoe are printed in the lining for rapid screening and identification
- Image: the brand name is printed on the insole
- Perforations: in some cases the material is perforated as part of the design
- Toe capping: before assembly of the upper, the toe cap is created. The cap provides strength and shape to the toe of the shoe for greater consistency.
 

6. Mounting: The mold is selected in accordance with the model number. The bottom is made stationary using nails and cement. This is done manually and a special machine is used to press the pieces so that the shoe is formed and shaped properly. Toes and heels are mounted. Then a setting process is conducted to ensure that the shoe fits perfectly to the mold.

7. Attaching the sole by the traditional bonding process: The soles are purchased pre-made. First the sole is marked then punched where the upper is going to be glued. The punching is done by a special machine so glue will saturate better into the sole. Next, the upper is glued to the sole. The temperature is increased for the gluing in a special machine that presses the sole for 30 seconds. Finally, the mold is removed.

8. Finishing: The insole is glued into the shoe, the edges of the soles and linings of the shoe are painted, and seams and lining are washed with a special soap to remove stains and residues from the production process.

9. Dying: This is done in order to make the color uniform. The athletic shoe is then retouched with polish to give it a shine. This is performed with rotating brushes.

10. Packaging: The model number is printed on and the product is packaged in cardboard boxes.

11. Warehousing of finished products: Once packaged, the finished athletic shoes are shelved according to the style and product number.

For connecting the sole to the upper of the shoe, there are different processes such as gluing and sewing. For gluing, polyurethane adhesives are increasingly being used because they provide durability to the bond of the sole to the shoe.

Suppliers of polyurethane adhesives

To search for suppliers or companies that sell polyurethane adhesives, request a quote or price for polyurethane adhesives, or for more information, use our industrial search engine.

We are pleased to introduce Solder de México, a provider of polyurethane adhesives:

Solder de México S. A. de C. V., is a company dedicated to the production and marketing of polyurethane adhesives for use by the footwear industry.

Adhesives products for bonding soles to shoes include:

Product

Description

CROSSER MT-760

Solvent-based polyurethane adhesive of medium viscosity from the CROSSER line (third generation polyurethane), used in the footwear industry for bonding the soles of sports and casual shoes. It dries and strengthens quickly.

CROSSER GP-730

Solvent-based polyurethane adhesive with medium-high viscosity and high strength. This adhesive is used in the footwear industry primarily for bonding soles to different types of materials. Its rapid drying and high strength facilitate high volume production and the bonding of materials that have high oil or plasticizer content.

CROSSER LC-754

Solvent-based translucent-liquid, polyurethane with low viscosity from the Crosser line, used in the footwear industry mainly to strengthen and anchor deeper porous surfaces such as thick leather

CROSSER HS-725

Polyurethane adhesive from the CROSSER line that has a high initial tack, is  solvent-based, has a medium-high viscosity, and is used in the footwear industry for bonding soles of Thermoplastic Rubber or TR.

View the Profile, Products, Address and Telephone for Solder de Mexico.

Alternatively, make direct contact with Solder de Mexico to request more information about polyurethane adhesives.

Source:

http://www.pymes.gob.mx/guiasempresariales/guias.asp?s=14&guia=24&giro=2&ins=523

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