National standard for travel shoes?

The national standard 1 took effect in September, and replaced the original standard GB/t15107-1994 from the date of implementation. The introduction of the new standard is the result of adapting to the development of domestic technology, market economy and the change of consumption concept, which is of great significance to further improve the promotion of standardization to the production, quality and market development of travel shoes. Travelling shoes are loved by people because of their leisure and sports characteristics. At present, the annual output of travel shoes in China exceeds 1 100 million pairs, accounting for more than 50% of the global output. Many famous travel sports shoes brands in the world have production bases in China. As a product closely related to people's daily life and the immediate interests of consumers, the introduction of its new standards has aroused widespread concern. Only by accurately understanding the requirements of the standard, correctly understanding the connotation of the standard and rationally treating the influence of standard changes can we give full play to the guiding role of the standard, further standardize the basic indicators of travel shoes products and further improve the overall quality of China's travel shoes products.

The main differences between the new standard and the old standard are:

1, the new standard clearly stipulates the scope of application of the standard. In the scope of application of the new standard, easily confused product categories such as "training shoes and snow shoes" are deleted, and it is clearly stipulated that it is not applicable to professional sports shoes. At present, the standards for professional sports shoes such as table tennis shoes, football shoes, roller skates and track and field shoes have been issued one after another, which has changed the situation that there was no standard for such shoes in the past.

2. The new standard has increased the requirements for the low-temperature flexibility of vamp materials. According to the standard, the upper material must conform to QB/T 2224 "Technical Conditions for Low Temperature Buckling of Upper Material", that is, the upper material of front leather and natural fabric is required to be at (-10 2)℃. For artificial upper material, modified upper leather and fitted upper leather, the new requirement is actually (-10 2)℃. At present, many shoe-making enterprises require this project to be tested when accepting fabrics, and this basic requirement should also be met when developing and using new upper materials in the future.

3. The new standard increases the technical requirements that may not affect the wear defects. The increase of this clause makes the technical requirements more perfect, and also conforms to the characteristics of rich styles, diverse materials and technological changes of travel shoes.

4. The quality of new standard products is divided into superior products and qualified products, which are tested and judged respectively. This change is in line with the overall requirements for formulating product standards, which not only considers the product quality of most small and medium-sized enterprises, but also helps to promote the upgrading of enterprise products, help the superior and limit the inferior, and promote the improvement of overall product quality.

5. The new standard adds, deletes and modifies the inspection items of appearance quality; This is mainly reflected in the refinement and improvement of the appearance quality requirements of finished shoes, such as no glue, no glue opening and no obvious defects in the bottom seam; It is more practical to stipulate the mutual tolerance of the corresponding parts of the same pair of shoes; The requirements for accessories are improved, and the accessories are required to be firm without sharp edges and corners. These specific requirements are in line with the characteristics of travel shoes and people's increasing attention to wearing comfort and preventing accidental injuries.

6. The new standard has adjusted the physical and mechanical performance indexes. In addition to dividing the indexes into qualified products and excellent products, the indexes of low-temperature bending performance are increased, and the indexes of qualified products such as peeling strength, folding resistance and wear resistance are appropriately lowered. For example, the original standard requires that the bottom wall should not be opened after testing the folding resistance, and now it is adjusted to "the bottom wall (side bottom) should not be opened more than10 mm"; The original standard requirement of wear resistance index is "less than 10.0mm", but now it is changed to "less than 12.0mm". The main reason for this adjustment is that the provisions of the original standard are too harsh, which does not conform to the actual characteristics of various materials and styles used in travel shoes at present, and the description of the original standard is too general, which is not convenient to standardize the judgment of the test results and must be revised.

7. The new standard adds Appendix A "Determination of after-sales service quality of travel shoes". This appendix is an informative appendix, which standardizes the criteria for judging the quality problems of sports shoes in daily wear. Quality problems can be handled in accordance with the express after-sales service regulations agreed by the manufacturer or the unified regulations of the location of the sales unit.

Through the revision and improvement of the above seven aspects, the new version of the standard of travel shoes is more suitable for the reality of product quality development, and is more conducive to standardizing the quality supervision and grade promotion of travel shoes products. Generally speaking, the new standard is a normal and timely version change, while the original standard has been implemented for more than ten years, so it is necessary to make appropriate revisions and improvements. It must be recognized that this standard is only a general and basic requirement for the quality of travel shoes. In order to improve the quality of products in an all-round way and truly realize the characteristics and high quality of independent brands, enterprises must formulate and implement stricter and more comprehensive product standards suitable for their own characteristics and market requirements based on this standard. The author believes that production enterprises, trading companies or relevant departments should explore and improve the following aspects when further formulating the product standards of travel shoes in the future:

(1) About inspection items

Good travel shoes not only meet the requirements in six technical indexes, such as folding resistance, wear resistance, adhesion strength between outsole, peeling strength between sole, peeling strength between bottom wall and upper, and low-temperature flexibility of upper material, but also meet certain index requirements in color fastness, aging performance and adhesion strength between periphery and upper. Among them, color fastness items, including color rubbing fastness (dry rubbing, wet rubbing), water rubbing fastness, sweat rubbing fastness, etc., affect the sanitary performance of finished shoes; Aging properties include yellowing resistance, thermal aging resistance of light-colored materials, and damp-heat aging resistance of uppers and soles, which affect the durability of finished shoes. The adhesive strength between welt and upper is an important index of welt, bottom wall and hemmed shoes. These items are closely related to the wear resistance of finished shoes, and increasingly become an important item to control the quality of final products.