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Opportunities and challenges in the textile printing digital printing market is facing

Published on:2014/1/15 15:52:08

Keyword:Fibers, yarn, clothing, weaving, textiles, yarn, printing, cotton fiber, fiber raw materials, fabric
Introduction:Outlook 2050, the textile industry has good development opportunities with the majestic vision, but also faces many problems need to be solved. (1) de...

Outlook 2050, the textile industry has good development opportunities with the majestic vision, but also faced a lot of problems need to be solved.

(1) to develop with the use of textile fiber material resources. Global textile fiber processing volume over the next 40 years will increase significantly. According to United Nations projections, by 2050 the global textile fiber processing capacity will reach 253 million tons. Where: clothing textiles 41.5 million tons, per capita consumption of 4.51 kg of fiber / person-year, accounting for 16.4%; home textiles 41 million tons, per capita consumption of 4.45 kg of fiber / person-year, accounting for 16.2%; industrial textiles 170500000?? tons, per capita consumption of 18.53 kg of fiber / person? year, accounting for 67.4%. This change was 30 years ago, completely unexpected.

textile fibers around a year from the current 75 million tons to 253 million tons, such a large development will face many constraints. First problem is that the global population explosion (in 2000 the United Nations published forecast 2050 global population 7.6 billion, in January 2009 the United Nations published forecast 2050 global population 9.2 billion, was revised to 9.4 billion in February this year), so even if the worlds arable land All may be used to grow food to feed the 9.4 billion population is not enough, the food supply will be very tight. Whether it is a natural fiber cotton, hemp, or for use in sheep pastures or mulberry sericulture will not be reused arable land, against this background, a direct impact on the production of traditional natural fiber supply by 40 years in the future constraints. Second, relying on synthetic chemicals gradual depletion of petroleum, chemical fiber regeneration rely linters, wood pulp, etc. has become the limit, fast-growing timber supply can not grow. Chemical fiber raw materials used in more than 90% are derived from petrochemical raw materials, this year the American economist at the University of California, Davis, published research papers stand to the current rate of consumption of resources, with 2050 global oil and natural gas resources will face depletion. So, the next 40 years, the textile fiber material supply gap is very large, must find the resources, this is a very serious problem, not alarmist.

(2) Effect of textile processing is restricted to various environmental conditions. From Copenhagen to last years meeting in Tianjin, as well as the Stockholm Convention in the preceding decade, the production of raw materials for the textile fiber textile processing position with a "save energy", "Sewage reduce emissions", "save water" "Reducing energy consumption", "environmentally friendly" and "green", "carbon" requirement. This is our current textile processing is a huge pressure on the current processing techniques, methods, equipment, technology, etc. are important constraints. In addition, the more important question is, "energy", "reduction", "saving" and other requirements for textile production and processing costs we stand a serious challenge.

(3) the new era of social quality requirements for textile products will continue to increase. Requirements for clothing with home textiles, such as clothing anti-pilling, snagging resistance remains a problem; anti wrinkle resistance, humidity rubbing fastness, "wash and wear" sex, guide Hantou wet clothing and other requirements significantly improved; functional requirements continue to increase, such as warm, cool, anti-bacterial, deodorant, moth resistance, flooding mite resistance, flame resistance, anti-droplet resistance, antistatic properties, UV resistance, infrared radiation , anti-electromagnetic radiation, as well as smart clothing requirements. In addition, the more prominent is the interdisciplinary health, health care, medical textiles, with physiology, pathology, meridian points combine theory and so many disciplines in the development and application of this innovative angle takes a larger research effort purposes.

else, industrial textiles in various different purposes, but also stand high strength, high strength, high modulus, low modulus, high temperature, low temperature, low resistance, high insulation resistance, anti-high-energy particles, etc. new requirements. Out as, the aerospace industry, the astronauts wearing spacesuits out positions, including the moon landing in China to be implemented and the development of clothing, the use of these garments environment, especially towards the side of the garment minimum temperature of the sun is 185 ℃, in the back garment side of the sun is the highest temperature of minus 160 ℃, so the surface of the garment to the same soft fiber over 185 ℃, but can not melt below minus 160 ℃ not hard, brittle hair, clothing position stringent requirements.

To meet these requirements must be: the development of new fiber varieties, development of new textile processing technology, equipment, development of detection technologies with a range of equipment, construction of a series of new standards. China has now developed into the industrialization of high-performance fiber varieties are: high strength and high modulus ultra high molecular weight polyethylene fiber, poly-m-phenylene diamine Terephthaloyl fiber, poly-p-phenylene diamine terephthalamide fiber , polyphenylene sulfone terephthalamide fibers, polyphenylene sulfide fibers, high strength and high modulus carbon fibers, PTFE membrane cracking yarn, PTFE fibers, basalt fibers, polyimide fibers, high strength polyethylene acrylic fiber, high strength polyvinyl formal fibers, water-soluble polyvinyl alcohol fiber. Meanwhile, the global high-performance fibers are being developed and industrialization are: ultra-high-strength carbon fiber, high modulus carbon fibers, silicon carbide fibers, boron fibers, perfluorinated fiber, poly-p-phenylene benzobisoxazole fiber, poly-m-phenylene benzobismidazole fibers, polyparaphenylene benzobisthiazole fibers, polyetheretherketone fibers. Global concern chemical fiber processing technology are: cellulose solvent spinning; modified cellulose melt spinning; modified polyester fiber polylactic acid fiber; various high-functional fibers: high strength, flame retardant, anti-droplet , I. Khan, antistatic, conductive, magnetic, anti-UV, anti-electromagnetic radiation, anti-high-energy particles, and so on.

task facing the development of the textile industry

(1) expand the Vision of textile fibers. In the last "five" with the "Twelfth Five-Year Plan", the raw material for textile fibers broaden Vision statement of requirements are: adequate use of natural conditions, the development of biomass resources. That is, the use of new technologies, develop new varieties of fiber, the use of saline land, wasteland, hillside planting natural fibers, forming a natural plant fiber production of "strategic emerging industries", including a variety of cotton, hemp, mulberry and sericulture The newly developed kapok fiber, horn melon fiber. China has recently produced a fine cotton yarn 7 years 300 British branch of the partnership after the double strands woven into yarn-dyed, then made shirts, mainly exported to the United States. No other country in the world to produce a moment of this yarn fineness. So fineness of cotton production, can not make use of ordinary cotton fiber. Lets calculate: 300 metric equivalent of the British branch of the yarn count is 508, metric number of ordinary cotton fiber is 4000, use ordinary cotton fiber spun yarn so fine, each yarn but only eight in the fiber cross-section, in accordance with the principles into yarn, yarn requires at least 37 fibers, so use ordinary cotton fiber is unable to do so. This 300 British branch cotton yarn is used in China, especially cultivated varieties, this cotton is planted on saline.

else, should be sufficient to take advantage of the current crop waste resources (such as: the rest of the mulberry silkworm feeding, use of post-pressed sugar cane bagasse, hemp stalk core, corn stalks and other developed regenerated cellulose fibers together); adequate use of existing Conditions exploitation of new biomass resources (bamboo, seaweed, crab, shrimp, vegetable protein, bacterial proteins, etc.); ample use of waste textiles regeneration (in the United States, France, Italy, Britain and other developed countries, to enter the market of waste recycled fiber textiles and obtain consumer acceptance, our country has done more than ten years of work, but it needs to be done); development of new high-performance textile fibers with new features, including the use of chemical fibers "beyond, imitation, replaced by cotton fiber." (2) the development of new technology Textile Garment with the new equipment. Spinning equipment with the technical point of view, there is the traditional mule, flyer spinning, ring spinning as we are familiar with, as well as centrifugal spinning, rotor spinning, Siro spinning, silk spinning Siro , cable-shaped spinning, hollow spindle spinning, air-jet spinning, vortex spinning, spinning dust cage, fancy spinning, electrostatic spinning; Also discovered a new spinning methods, such as: compact spinning, low torque (Nu) spinning, embedded composite spinning, self-twist spinning, multicolored mixing spinning (there are several different colors on the same single fiber yarn) and rainbow yarn spinning (a yarn appear on the same 4 kinds to 10 colors, each color is pale color change from light to dark or from dark to). Spinning spindle speed of 13,000 rev / min to 20,000 rev / min or 50,000 rev / min.

in weaving technology point of view, the development of the original general woven dobby weaving, jacquard weaving, rapier weaving, water weaving, jet weaving, weaving three-axis, multi-layer weaving. In addition, the development of a wide weaving, extra width (width of 14 meters or more) weaving. Loom speed of 120 rev / min increased to 2500 rev / min or more. Covering the weft knitting technology, warp knitting, flat, round, wide (large tube diameter), lined by a one-way, one-way weft, warp multi lining, weft, Tim yarn. Non-woven carding technology, acupuncture, spunlace, pressure and meltblown spinning stick (chemical fiber spinning), etc. have been widely implemented in various ways. Meanwhile complex ways, the pressure stick with acupuncture, spunlace composite technology and with woven fabrics, knitted multi-layer composite technology. Plaiting weaving technique covers a variety of three-dimensional forming technology, and used in the production of blades for wind turbines.

staining techniques also have a very big development, covering the pad, dip, cold pad-batch dyeing, jet dyeing, dyeing ultrasound, chromosome painting, coloring liquid, supercritical carbon dioxide dyeing technology and multi-colored yarn dyed jet technology segmentation a variety of techniques. Printing technology covering flat screen printing, rotary screen printing, inkjet printing, inkjet printing and other electronic control technology.

costume design production technology also from manual processing to now cover a variety of automation technology and forming a seamless garment.

These techniques reflect the past 30 years considerable progress in science and technology with the Textile and garment machinery equipment manufacturing technology. But Looking ahead 40 years, textile dyeing clothing technology and equipment, will produce greater progress, especially computer-controlled automatic textile equipment.

(3) development of textile science theory and innovation play a fundamental role. Use with textile materials processing technology has been on the accumulation of years, the development of modern machinery textile industry also has more than 360 years. But the theory has not been completed Textile Science: Performance with functional fibers are not yet fully utilized; magnetic properties of the fibers with the use of knowledge has not yet been sufficient; role in many of the performance of textile materials textile industry has yet to enter the system in the design phase; textile materials Mechanical properties of the "allowable stress" yet to enter the field of design; health care role in personal wearing apparel of not really started; textile dyeing and finishing processes is still too long, too many links; fiber-reinforced composite material processing procedures have not been standardized system; Textile testing technology has not yet formed a complete system with the standard. These efforts have yet to achieve home textile technology work.

      

Keyword:Fibers, yarn, clothing, weaving, textiles, yarn, printing, cotton fiber, fiber raw materials, fabric

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