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With the continuous development of social economy, people's requirements for the quality of consumer goods are increasingly stringent. "Product standards" is a yardstick to measure product quality, China's current national standards, industry standards, local standards and other government standards belong to the guarantee and basic product standards, and the product standards that can really "lead" the industry is an important support for the realization of quality rejuvenation strategy.

In 2021, under the leadership and promotion of the China Sewing Machinery Association, the backbone enterprises in the sewing machinery industry have formulated their own "computer-controlled high-speed flat Sewing Machine" enterprise standards with reference to the "leader" standard evaluation requirements, leading the high-quality development of the industry with high standards and high-quality products!

The National sewing machine Quality Supervision and Inspection Center (hereinafter referred to as: National Inspection Center) commissioned by the backbone enterprises involved in the leader, the quality inspection work was carried out on the standards of 6 "leader" enterprises, and the national sewing equipment Industry Information Center (hereinafter referred to as: full seam information Center) combined with the testing situation and user experience, to introduce the "leader" in these flat sewing machines.

YJ-C7 Interlocking Stitches sewing machine

In the field of small round knife products unique Lejiang, in recent years in the field of Industrial sewing machine performance is also very eye-catching, is one of the top ten enterprises in China sewing machinery industry.

The YJ-C7 intelligent pattern flat sewing machine produced by Lejiang adopts the Lejiang family style design, with the advantages of step adjustment needle distance, step back sewing, close stitch sewing, a variety of pattern sewing, thickness and so on.

Analysis of the testing situation of the national inspection center

The "leader" enterprise standard has a total of 8 "core indicators" and 2 "innovation indicators", and the test results of the National Inspection Center are only responsible for the samples submitted by the "leader" of the flat sewing machine enterprise standard.

Note: The smaller the ratio, the more advanced it is

Among the products tested by the National Inspection Center, Lejiang's YJ-C7 intelligent pattern flat sewing machine is in a leading position in the measurement of the two indicators of "relative error of stitch length of inverted seam sewing thread" and "temperature rise of the surface of the control box shell" in the "core index".

In particular, the index of "reverse sewing stitch length relative error" is better than the standard value of the leader 100%, better than the measured average 17.2%, and the absolute lead of the index of "reverse sewing stitch length relative error" means that the stitch beauty of the stitched products is quite excellent, and it is a weapon to ensure the consistency of the stitches of high-grade stitched products.

The leading indicator of "temperature rise on the surface of the control box shell" also shows that this product has been fully considered in the safety and security of the sewing operator.

The actual use experience of garment enterprise users

In order to understand the actual use experience of Lejiang YJ-C7 intelligent pattern flat sewing machine in clothing enterprise users, the full seam information Center collected the evaluation of several clothing enterprise users who had actually used this product.


In summary, there are roughly the following usage evaluations:

The sewing stitch looks very neat, no crooked or left to right shift phenomenon, light from the stitch to see the sewing goods are very high-grade;
Whether it is sewing forward or back, the sound is very soft, the overlap of the stitch is very high, as long as the sewing worker does not make mistakes in the sewing gesture, the stitch will basically not make mistakes.


The use evaluation of these actual users basically verifies that the leading indicators of Lejiang products evaluated by the National Inspection Center are directly reflected in the actual use of products.

In addition, Lejiang YJ-C7 intelligent pattern flat sewing machine also has all the functions of the basic stepping flat sewing machine on the market, such as LED lighting, a multi-purpose machine, electronic loose wire, sealing oil pan, touch operation panel, one-button restoration, etc., which is one of the ideal choices for users to choose stepping flat sewing machine.


A comprehensive review:

Lejiang YJ-C7 intelligent pattern flat sewing machine as a flat sewing machine enterprise standard "leader" product, in the backward sewing sewing stitch length relative error, control box shell surface temperature rise of two evaluation results leading and the user's "back sewing sound is softer, The evaluation of "higher recontact degree of inverted stitches" fully shows that this step flat sewing function can better meet the user's high requirements for the accuracy and consistency of the stitches of middle and high-end sewing products.

(This article is from: Shanghai Sewing Machine Research Institute public number)