Jeans have become a symbol of fashion, many young people have several pairs of jeans in their closet, the material of jeans also has a grade.

1.Silk bamboo denim

Comfortable to the touch, smooth and lustrous cloth, is one of the high-grade denim clothing fabrics.

2.Cotton bamboo denim

Fabric texture thick, bamboo yarn more and prominent, have better washing effect.

3.Cotton twill denim

Fabric pattern clear, moderate thickness, is the most widely used in denim clothing a fabric.

Jeans material fabrics are also different according to the material.

1.Ring spun yarn denim

With the development and application of new process equipment such as ring spinning high speed, large volume, fine winding, knotless yarn, etc.

The short spinning length of coarse yarn, low production efficiency, many knots and other shortcomings have been solved.

Denim with yarn is replaced by airflow yarn situation is rapidly changing, ring yarn has a comeback trend.

Because the ring yarn denim is better than the airflow yarn some properties, such as feel, drapability, tear strength, etc..

But also due to the psychological return to nature, the pursuit of the original development of the impact of the denim style.

More importantly, the ring yarn denim clothing after grinding and washing process, the surface will show a hazy bamboo knot style, is in line with today's demand for personalized denim.

In addition, the current market is very popular bamboo yarn denim, and ring spindle bamboo can spin a shorter and denser bamboo knot, but also promote the momentum of the development of ring spindle denim.

2.Bamboo denim

When the design with different yarn number, different bamboo knot thickness (and base yarn ratio), knot bamboo length and pitch of the bamboo yarn, using a single warp or single weft and warp and weft are equipped with bamboo yarn in both directions.

With the same number or different number of normal yarn for the appropriate ratio and arrangement, you can produce a variety of bamboo denim, by the garment washing process can form a variety of different hazy or clearer lattice-like style denim, by the consumer Personalized demand groups welcome.

Early bamboo denim is almost all ring spindle bamboo yarn, because it can be spun shorter length, smaller pitch, relatively large density of bamboo yarn, easy to form the fabric more dense embellishment effect, and to the warp bamboo mainly.

With the development of market consumer demand, the current popular warp and weft two-way bamboo denim, especially the two-way bamboo denim products with weft elasticity, domestic and foreign markets are very popular.

And some varieties as long as the tissue structure is well designed, warp can use a single variety of ring yarn, weft with the appropriate proportion of bamboo yarn, the same can achieve the effect of warp and weft two-way bamboo denim.

3.Weft stretch denim

The use of spandex elastic wire, so that the denim varieties developed to a new field, can make the denim both fit and comfortable, and then with bamboo or different color.

So that denim products more adaptable to fashion, personalized consumer demand, and therefore has great potential for development.

Most of the current stretch denim for the weft stretch, elastic elongation is generally 20% to 40%.

The size of the elastic elongation depends on the organizational design of the fabric, the smaller the tightness of the warp and weft organization on the cloth machine, the greater the elasticity, and vice versa.

Under the conditions of the tightness of the warp yarn organization fixed, the greater the tightness of the weft elastic yarn, the smaller the elasticity, the weft tightness to a certain extent, and even the loss of elasticity.

In addition, the outstanding problem of finished stretch denim is the weft shrinkage rate is too large, generally more than 10%, and even up to 20% or more.

Fabric width instability to bring great difficulties in the production of clothing, the solution is not to make the elastic stretch in product design, generally take 20% to 30%.

That is, to maintain a certain warp and weft tissue tightness, and in the pre-shrinkage finishing to take appropriate methods to increase tension, so that the fabric width has a larger shrinkage, so as to obtain a lower residual shrinkage of the finished cloth weft.

Another solution is stretch denim by pre-shrinkage finishing Another solution is to heat-setting treatment of stretch denim after pre-shrinking, which can obtain a more uniform and consistent width and a more stable, lower weft shrinkage to meet the requirements of garment processing and production.

Speaking of denim, we have to mention the indigo dye INDIGO, which is made by fermenting and drowning the leaves of polygonum blue or wood blue, which is also available in synthetic form.

Because INDIGO itself has low adhesion and the blue color is formed by oxidation in contact with air, it can only be dyed in strong colors by repeating several times.

Even so, it is difficult to dye invasion to the cotton core.

That is why the fabric made in this way is worn for a long time after the part of the sharp contrast between blue and white.