Classifications

• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
  • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
  • D01C1/00—Treatment of vegetable material
  • D01C1/02—Treatment of vegetable material by chemical methods to obtain bast fibres

Definitions

• the invention belongs to a yarn and a manufacturing method thereof, particularly to a yarn manufactured by using bamboo raw fiber alone or mixed with other textile fibers and a manufacturing method thereof.
• bamboo has a long history in ancient Chinese culture. It has been praised by literati and writers of all ages. It has also loved and provided valuable and abundant resources for the workers to eat, live, travel and entertain. bamboo has been widely used in human production, life, and cultural activities. It has attracted attention from countries around the world. It is still related to people ’s lives and has played an important role in social and economic construction.
• the use of bamboo fibers for spinning and weaving is a new issue in the recent utilization of bamboo resources.
• the development and utilization of bamboo raw fiber in the field of textiles is a major issue with historical significance and social benefits.
• bamboo raw fiber has an irresistible attractive charm. This is not only due to the return to nature and origin of evergreen plants, but more importantly, it has a series of advantages that other fibers cannot match, such as antibacterial, abrasion resistance, moisture absorption, and breathability.
• the cross section of bamboo fiber is full of large and small voids, which can absorb and evaporate moisture in an instant. It is known as a "breathable" fiber.
• bamboo raw fiber will definitely be loved by people.
• Chinese patent ZL02111380.7 discloses a real bamboo fibril that still maintains the excellent characteristics of bamboo fibrils and a method for making the same.
• bamboo fibrils can effectively maintain the original characteristics of bamboo fibrils.
• this bamboo fiber is called bamboo fibril.
• the successful development of this kind of bamboo fibril has laid a good foundation for making textile products with true bamboo fibril characteristics.
• the patent only uses bamboo to make bamboo fibrils, and the bamboo fibrils produced according to this process have poor cohesion, and the yarn strength is 4 degrees Celsius. As the environment changes greatly, it cannot be directly applied to spinning. There are still many technical problems about how to spin bamboo fiber into yarn and weave it into cloth.
• An object of the present invention is to propose a bamboo fiber yarn and a manufacturing process thereof which can truly meet the requirements of the textile products while retaining the original excellent characteristics of the bamboo fiber, in view of the shortcomings of the existing bamboo fiber and its products.
• bamboo usually moso bamboo
• the bamboo fibrils in the state of single fiber are another type of bamboo fibrils in the process fiber state that artificially retain a certain amount of lignin and pectin.
• oil emulsified oil
• the spinning of bamboo fiber can be spun with bamboo fiber alone, or it can be blended with other various textile fibers to form a blended yarn. It can be based on the spinning process of ramie spinning system, the spinning process of cotton spinning system, and silk spinning.
• the spinning process of the yarn system, the system process of the wool spinning system or the spinning process of the linen spinning system are used to spin various pure bamboo fibril yarns or blended yarns to obtain yarns with different characteristics.
• the main technical points of the present invention are as follows: Polyester, nitrile, ramie, wool, tencel, viscose, cotton, silk yarn, modal, etc.) are mixed and spun. Its composition and weight percentage are as follows:
• One is bamboo fibril in the state of single fiber, and the other is the bamboo fiber in the state of process fiber formed by artificially retaining a certain amount of lignin and pectin.
• the main technical indicators of bamboo fiber are:
• the spinning process of bamboo fibrils includes three parts: the preliminary manufacturing process of bamboo fibrils (produced according to well-known technologies), the process of improving the spinnability of bamboo fibrils, and the spinning process. ;
• bamboo fibrils are made according to well-known methods (such as Chinese patent ZL02111380.7);
• the main technical requirements for bamboo fiber selection are: straight, neat fibers, and no disordered fibers.
• the main technical indicators are implemented in accordance with the requirements of Article 2.
• Fiber bundle weight depends on different varieties
• the given oil is a mixture of emulsified oil and soap, wherein the amount of emulsified oil is 1 ⁇ 1.8% (calculated based on the weight percentage of bamboo fiber), and soap is 0.5 ⁇ 0.9% (calculated based on the weight percentage of bamboo fiber);
• Oiling method immersed oil feeding in wet state
• Oiling process conditions temperature 80 ⁇ 90 ° C; time 3 ⁇ 4 hours; bath ratio 1: 6 ⁇ 8; emulsified oil formula is:
• Combing adopts low speed and light weight, and according to different raw materials, develop different technological schemes, pull out a gap of 28 ⁇ 48mm, remove some defects and short fibers in bamboo raw fibers, and meet the requirements for spinning high count yarns. ;
• the roving adopts the process principle of low speed, light weight and appropriate twist factor
• the spun yarn adopts low speed, small draft, proper pressure, proper spacing and tension to reduce hairiness, reduce end breaks, and improve uniformity of sliver;
• the blending of bamboo raw fiber and other fibers usually adopts strip blending, and small-volume blending or encapsulation can also be used.
• bamboo fibril yarn products produced according to the present invention through testing the properties of bamboo fibrils, it was found that the bamboo fibrils are shiny, strong, and the fineness of the bamboo fibrils in the single fiber state is distributed between 1200 and 2000.
• the fiber fineness is more than 500 cm, and the length can be determined according to the process requirements.
• micro-grooves on the surface of bamboo fiber which is beneficial to improve the function of moisture absorption and wetness. No matter how the fiber is bent and squeezed in the fabric, it will leave a fine gap and form a good capillary effect. Therefore, with its high moisture permeability function, it is very suitable to be mainly made of spring and summer fabrics and casual fabrics.
• bamboo fiber fabric is used in summer clothing to take away the sweat from the body, to avoid the uncomfortable feeling of clothes sticking to the body after sweating, and the volatilization of water will take away the heat, and the quick-drying effect will bring more coolness.
• the raw materials used are bamboo, the distribution of seeds in China is very wide.
• pure natural biological agents are used, which will not cause harm to the human body, and will not pollute the environment. It is in line with modern people's clothing and environmental protection concepts. It is a kind of cellulose fiber with excellent performance, which adds a new member to the large family of textile raw materials. Therefore, bamboo fibrils can be made into yarns alone or mixed with other fibers.
• FIG. 1 is a process roadmap of spinning using a ramie spinning system according to the present invention.
• FIG. 2 is a process roadmap of the present invention using a cotton spinning system.
• Fig. 3 is a process roadmap of spinning using the silk spinning system of the present invention.
• FIG. 4 is a process roadmap of spinning the wool spinning system according to the present invention.
• Fig. 5 is a process roadmap of the "linen spinning system" of the present invention.
• Example 1 To produce 24 ⁇ titlepure bamboo fibril yarn, the specific manufacturing process when using ramie spinning is as follows:
• bamboo currently moso bamboo is usually selected
• bamboo fibril is made into bamboo fibril according to the well-known technology
• the bamboo raw fiber is treated to improve the spinnability
• Lubrication method dipping oil in wet state
• Oiling process conditions temperature 80 ⁇ 90 ° C, the amount of emulsified oil 1.4% (calculated based on the weight percentage of bamboo fibril), soap 0.8% (calculated based on the weight percentage of bamboo fibril), time 3 ⁇ 4 hours, bath ratio 1: 6 ⁇ 8.
• Emulsified oil formula (weight percent): tea oil 49.95%, caustic soda 0.05%, water 50%.
• Main technical requirements of tea oil value below 8; saponification value 185 ⁇ 195; iodine value 76 ⁇ 83 (2) dehydration and drying of bamboo raw fiber
• the fiber bundles picked and sorted are 65 soil 5g;
• bamboo fiber picking quality (to meet the needs of ramie spinning equipment): Fiber count 1200Nm ⁇ 2000Nm; Fiber strength 4 ⁇ 5.5CN / D; The average fiber length is 80 ⁇ 100mm; the coefficient of variation of the length is 40 ⁇ 45%; the white point is less than 5 / g; the hard sliver rate is less than 0.5%;
• Stretching process conditions Stretcher 225 g / ball; Needle plate strikes 409 times / minute; Needle plate specification 18 stitches / inch; Back tension 1.017;
• Needle plate strikes 390 times / minute; Needle plate specifications 18 needles / inch; Back tension 0.97; Front tension 1.095;
• Needle plate strikes 390 times / minute; Needle plate specifications 13-18 stitches / inch; Back tension 1.02; Front tension 1.04; Delivery weight 40 ⁇ 45g / 5m.
• front roller speed 58 ⁇ 70 rpm; spindle speed 450 rpm; roving draft multiple is generally controlled at about 8;
• the proportion of the yarn is: bamboo fiber 60%, water-soluble fiber 40%
• the fibers are straight and neat, without disordered fibers; the hard sliver rate is ⁇ 0.3%;
• Fiber bundle weight depends on different varieties
• the bamboo fibril is treated to improve the spinnability.
• the bamboo fiber after drying and humidifying is sorted by 4 trillion; Pick and organize fiber bundles: 65 ⁇ 5g / bundle;
• Needle plate strikes: 409 times / minute; Extension II ball making 225g / ball; Needle plate specification 18 stitches / inch;
• the expanded fiber bundle is made into strips according to the process conditions of Example 1.
• Fiber count 6000Nm or more; Average fiber length: 90mm or more; Dissolution temperature: 88 ° C begins to dissolve, 100 ° C completely dissolves, and the drawing conditions are the same as in Example 1.
• the drawn mixed fiber bundle is used to spin rovings.
• the rovings are manufactured using low speed, light weight, and appropriate twist factors.
• bamboo fiber staple spinning
• the average fiber length is 30 ⁇ 50mm; the sliver rate is below 1%;
• Dust stick-dust stick spacing 7mm; Beater-dust stick spacing (import / export) 8mm / 18mm; Cotton roll speed I3rpm; Comprehensive beater speed lOOrpm;
• Roller center distance 45mm front roller or 100mm front roller; chute 15 X 0.7mm (ordinary yarn); 15 2mm (slitting yarn); slub yarn device model YTC83-SM;
• Blends of cotton bamboo fiber with other cotton fibers are wrapped or sliver mixed;
• the Kaiqing cotton process adopts the principle of mainly loosening, loosening more and less hitting;
• the main characteristics of the carding process are slower speed and transfer-oriented. The separation of the carding points is too large to avoid fiber damage;
• the drawing process adopts the principle of low speed and heavy pressure, and the draft multiple is slightly higher than the combined number to improve the uniformity of the drawing;
• the twist coefficient of roving and spun yarns is relatively large, which helps to improve the strength of the finished yarn;
• the short fibers produced in the combing process or the short fibers made according to the spinning requirements are applied to cotton spinning equipment, opened and rolled into cotton, carded into sliver, and then drawn, roving, and spun yarn (or After drawing, air-jet spinning), bamboo fibril yarn products are made.
• the proportion of the spun bamboo fibril yarn is: silk silk 50%, bamboo fibril 50%.
• the production process is as follows:
• the fibers are straight and tidy, without disordered fibers; the sliver rate is ⁇ 0.3%;
• the bamboo fibril is treated to improve the spinnability
• the stretched fiber bundle is made into strips according to the process conditions of Example 1. Process conditions:
• Needle plate specification 18 needles / inch
• Needle plate striking times 309 times / minute
• Needle plate specification 13 needles / inch
• Needle plate strike times 390 times / minute
• Needle plate strikes 390 times / minute; Needle plate specifications 13 ⁇ 16 stitches / inch;
• bamboo raw fiber After the bamboo raw fiber is treated to improve the spinnability, it is applied to a silk spinning device to be stretched, slivered, pre-combined, and combed to make a bamboo raw fiber sliver, which is then mixed with the silk sliver to draw, roving, Spun yarn to make bamboo fibril yarn products. ⁇
• the proportion of moso bamboo yarn is: wool 40%, bamboo raw fiber 60%;
• the fiber count is above 1500Nm; the fiber strength is above 4CN / D; the average fiber length is 65 ⁇ 100mm; the hard sliver rate is below 0.5%; 3. the picked bamboo raw fiber is input into the carding machine to be carded into strips
• Cylinder speed 148 rpm; Doffer speed: 15 rpm; output bar weight: 15 ⁇ lg / m;
• Cylinder speed 90 ⁇ 95 clamps / min; extraction distance: 28 ⁇ 48mm; delivery weight: 40 ⁇ 45g / 5 meters;
• Winding 40 ⁇ 45g / 5 meters; Needle plate specification 10 ⁇ 13 stitches / inch; Needle plate striking times 600-800 times / minute;
• Main process conditions output number 2.5Nm ⁇ 3Nm; spindle speed 530r / min;
• Main process conditions output number 50Nm; spindle speed 5500r / min;
• Main process conditions Yarn speed 350 ⁇ 400m / min; Tension piece weight 7g / piece;
• Main process conditions strand number 2; spindle speed 6000r / min; twist coefficient cc m 130-150;
• the wool spinning equipment is used to comb into strips, pre-combined, and combed through a carding machine to make bamboo fibril strips, which are then mixed with the wool tops and Strips, rovings, spun yarns, troughs, blended yarns and twisted threads to make bamboo raw fiber yarn products;
• Embodiment 6 A 15Nm pure bamboo fibril yarn is manufactured by using a flax spinning process.
• the manufacturing process is as follows:
• the produced bamboo raw fiber is processed according to the method described in Example 1 2;
• the main quality and technical requirements for picking and finishing fiber count above 500Nm; fiber strength above 3CN / D; fiber length 50 ⁇ 100mm;
• the speed of corner nail curtain is 60m / min; the curtain is stopped for 75 ⁇ 80 times per minute; the cylinder speed is 140rpm; the doffer speed is 10-12rpm; Head extraction speed: 25 ⁇ 30m / min; width of drafting guide: 52 ⁇ 72mm; delivery weight: 10 ⁇ 15g / m;
• the carding process adopts the principle of tapping and combing, and the principle of good transfer.
• the carding point has a large separation distance to control the damage of bamboo fiber as much as possible.
• Roving Main process conditions output count l ⁇ 1.5Nm; front roller speed 10 ⁇ 16m / min spindle speed 500r / min; twist factor cc m 30-40
• Main process conditions 'Front roller speed 12-16 m / min; spindle speed 5000 ⁇ 6000r / min;
• the draw frame should use cross-type needle ⁇ machine;
• the spinning frame should adopt a double-aperture drafting mechanism
• bamboo fiber in the state of process fiber or bamboo fiber in the state of single fiber after improving the spinnability of the bamboo fiber, the linen spinning equipment is used to comb into slivers, draw frames, rovings, and spun yarns through a combined carding machine.
• bamboo fibril yarn products Made of bamboo fibril yarn products.

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• Engineering & Computer Science (AREA)
• General Chemical & Material Sciences (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Health & Medical Sciences (AREA)
• Mechanical Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Molecular Biology (AREA)
• Wood Science & Technology (AREA)
• Zoology (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Artificial Filaments (AREA)

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• 2003
  • 2003-02-27 CN CNB031181287A patent/CN100557106C/zh not_active Expired - Lifetime
  • 2003-11-24 JP JP2004568623A patent/JP4422036B2/ja not_active Expired - Fee Related
  • 2003-11-24 US US10/516,475 patent/US7313906B2/en not_active Expired - Lifetime
  • 2003-11-24 EP EP03776765A patent/EP1598458B1/en not_active Expired - Lifetime
  • 2003-11-24 AU AU2003289621A patent/AU2003289621A1/en not_active Abandoned
  • 2003-11-24 WO PCT/CN2003/000997 patent/WO2004076728A1/zh not_active Ceased
  • 2003-11-24 DE DE60325647T patent/DE60325647D1/de not_active Expired - Fee Related
  • 2003-11-24 AT AT03776765T patent/ATE419413T1/de not_active IP Right Cessation

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