Water jet loom weaving is one of the new level with advanced technology in the world, the model speed, high yields, relatively low investment, production costs are significantly lower than other types of new looms. People have always thought that the poor water jet loom varieties adaptability, can only produce a hydrophobic synthetic filament fabric, low-grade products, technical content is not high. If you can break the traditional concept of technological innovation in the water jet loom, developed a hydrophilic fiber fabric, changing the pattern of a single synthetic fiber production, to achieve diversification of raw materials, the use of cotton, linen, silk, wool, chemical fiber and other blended kinds of fibers, mixed fibers and intertwined manner, weaknesses, both natural fiber fabric breathability, comfort, but also has a chemical fiber crisp, wrinkle resistant, high strength characteristics, will improve product quality, access to higher economic benefits.
Fabric Design
In the design of the fabric structure parameters must be combined with fashion trends and organizational structure of the product were material selection and configuration, stretch fabric and a strong sense of three-dimensional honeycomb fabric is currently on the market is more popular fabrics.
Fabric design specifications for a stretch fabric, by the use of 1 / 150D DTY 40D spandex clad, zonal using cotton or rayon, cotton and rayon taking into account the low strength, easy to tear, poor wear resistance characteristics, organization designed with multi-point structure closely interwoven plain weave.
Fabric design specification two honeycomb fabric, through to the use of 1 / 75D polyester DTY, zonal using 55/45 viscose yarn, polyester staple fiber and due to the viscous staple fiber blends, polyester and viscose fibers make excellent Disadvantages were complementary, both have a good strong polyester, wrinkle wear strong and stiff characteristics, while maintaining the moisture permeability of viscose fiber, anti-static and soft comfort features, because of viscose yarn strength, abrasion resistance better use of honeycomb structure is loose weave design.
Process
Due to the specifications of a fabric with a polyester warp ammonia coated wire, thread itself abrasion resistance, good cohesion directly minutes after the original examination of the warp yarn warping, weaving heald reed into the process.
Fabric specifications a specific process: to be the original inspection by → → heald reed warping, zonal be original inspection, and then weaving → drying test → finishing → finished.
Two of fabric specifications adopted by the ordinary DTY, the weaving process to withstand countless times stretching, bending and friction effect after the fiber is easy to split the fluff and decapitated, and therefore must be in batches warping, pulp silk and the shaft into the weaving process.
Two fabric specifications for specific process: The original check to make batches warping → → → pulp wire and twist the shaft → minute → heald reed, zonal conduct testing of raw materials, and then weaving → drying test → finishing → finished.
After the water jet loom fabric production, after sorting through the fabric rustic, natural, soft and crisp, moisture permeability and good style has been fully embodied, fabric strength test results show that: Specifications a breaking strength of the fabric through the 499N, zonal 712N. Specifications two strong fabric for breaking through to 586.8N, zonal 858N, in full compliance with the requirements of fabric strong first-class goods.
Problems and causes the stored technological innovation
Development on the water jet loom hydrophilic fiber fabric, the need for technological innovation, and there will be a series of problems in the development process.
Weft generation mainly because of hydrophilic fibers contain more polar groups, moisture absorption, strong decline after the moisture, especially after rayon, strength decreased about 50 percent moisture, the frequent occurrence of weft weaving .
Wei Wei and spray stacked inadequate for three main reasons: because of hairiness more easily adhesions weft insertion during storage, general mechanical storage weft weft insertion system in tangles easily, so that the hardship withdrawal. Because of hydrophilic fiber hygroscopic, absorbing the weight increased significantly after flying resistance increases, resulting spray weft not in place.
In addition, the mechanical storage insertion system is measured by replacing the wheel to control the length of each weft length, and each storage reservoir weft insertion on the length of the pre-wound can only reach three-quarters of the length of each latitude, as well as a quarter of the length of the by weft insertion inertial pull directly from the zonal cheese in weft throughout the flight, the first three-quarters are in free flight, after a quarter is bound flight, the speed of the two state solution retreat significantly different. E.g., loom speed was 600 r / min, a length of 170 cm per weft, injection time of 90 degrees, the opening time of the gripper 105 degrees, 260 degrees closing time, the start time of flight of binding of 240 degrees, the first angle is 15 degrees, the binding time was 20 degrees, the angle of the weft yarn 135 of the free flight, the flight speed of the free weft yarn 170 × (3/4) (360 × 600) / 135 × 100 = 2040 m / min, and the binding of flight speed of 170 × (1/4) (360 × 600) / 20 × 100 = 4590 m / min. Therefore, the hydrophilic fiber, because the water resistance is increased flight retreat the solution more difficult.
Began weaving, loom empty parked more mainly because of viscose yarn, cotton yarn, rayon and other hydrophilic fiber hairiness more easily adhesions, ordinary finger weft system prone to error between two fingers action, causing the empty loom stop.
At the start of weaving, because the parking stall stop more absorbent hydrophilic fibers sufficient to increase the volume of their expansion, when driving into the first weft again, the former can not be entirely out of the water the weft yarns, so there have been tight stalls streaky.
Pichou absorbent cotton drying difficult due to the full, so that the fabric can not be fully dry.
Appropriate countermeasures
Avoid rayon, cotton weft insertion broken pump stroke can be increased, so that the water also increased, water beam by fine thicker, increasing water beam weft cohesiveness. In addition, you can reduce the loom speed and reduce the weft insertion force, greatly reducing the weft phenomenon.
To overcome the deficiencies of mechanical weft storage system, using new electronic weft storage systems, electronic storage insertion system has three major advantages: After having electronic length measurement device, depending on the desired width length setting every latitude varieties, this means will be able to put every latitude accurate length around the reservoir completely pre-weft, weft insertion needle through the control block on the storage weft, weft can be sent to arrive uniform endpoint weft throughout the flight is always in free flight status, retirement solution smoothly.
In addition, there is a uniform gap electronic weft yarn insertion system stored in the storage reservoir weft insertion, the weft yarn does not stick to one another so that the advantages of entanglement. Electronic storage weft insertion system when the weft insertion stocker continuous slight vibration, there is a smooth solution weft back in favor, and therefore new electronic storage system for its good weft insertion and withdrawal of storage solution performance, insufficient to overcome jet weft and stacked latitude streaky.
Installation of photoelectric weft systems. As a result of such a device as a sensing infrared, greatly improving the accuracy and weft yarn for weft versatility, weft not in direct contact with the probe, as long as the time when the weft infrared sensed, could loom normal operation, even for silk or wool weft jitter caused flight instability can handle it, loom efficiency by more than 60% to 85%.
Using electronic delivery or electronic coiling device, which has a memory function and automatic adjustment fight gear, or Tenders manually before driving again-off again drove one of several sub-wai, but compared to operating requirements Tenders high.
Fans of water looms on the transformation, enhanced water fan power, the power increases, the moisture content down machine Pichou in front of greatly reduced, in order to facilitate drying. Adjust the drying process, reduce the drying speed, appropriately increasing the drying temperature, drying quit solve the problem.
After implementing a series of improvements can be produced on a water jet loom fabrics stretch fabric and honeycomb two products, and weaving production smoothly, Pichou quality and production efficiency is also improved, woven into the fabric and style inherent quality guaranteed, improved product quality, to overcome the shortcomings of pure synthetic fundamentally.
