Classifications

• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
  • D01G13/00—Mixing, e.g. blending, fibres; Mixing non-fibrous materials with fibres

Definitions

• the invention relates to a method for producing fine jute and jute-like yarns.
• the lingered fibers are subjected to carding on a roughing and fine carding or on a single-process carding.
• a tape forming process is necessary.
• the output of the fine carding machine or the single-process carding machine is 35 to 45 m / min with an output fineness of the belt of 28 to 60 ktex.
• the jute fibers are subjected to 2 to 3 refinement and balancing passages on comb field drafting machines.
• the delivery of the machines is 20 to 30 m / min.
• the leveling fineness of the band from the last leveling and refining passage is 3.5 to 10 ktex.
• the balanced and refined jute fiber tapes are spun on wing spinning machines with a needle warping device or on ring spinning machines with a strappy two-cylinder device.
• Jute mixtures with kenaf, hemp, flax and viscose can be processed using the described process.
• a disadvantage of the known method is that it can only be used to produce strong yarns which are intended exclusively for the production of packaging articles, sub-fabrics for floor coverings and other coarse fabrics for technical purposes.
• the object of the invention is to develop a method for producing fine jute and jute-like yarns, which is the production of fabrics for outerwear and fine household, decorative and technical fabrics where the specific jute properties can best be applied.
• the jute fibers are cut by guillotining or tearing into three length ranges, namely 40 to 60 mm, 120 to 300 mm and 500 to 600 mm. These fibers with the specified length are processed using a process for producing fine jute and jute-like yarns, consisting of the following operations: unpacking, cutting, emulsifying, lingering, carding, refining and spinning.
• the cut jute fibers are now mixed with cotton or cotton-like chemical fibers, wool or wool-like chemical fibers, flax or flax-like chemical fibers.
• the jute fibers are mixed with cotton or cotton-like chemical fibers and then opened and beaten on an opener.
• the fiber mixture is then carded on a card with a slatted cloth with a capacity of 4 to 12 kg / h.
• the carding tape with a fineness of 3 to 4.5 ktex is refined and balanced on two passages of the drafting machines with a delivery of 150 to 180 m / h.
• the refinement is carried out with a feed of 4 to 6 belts and 4 to 6 times the delay. If a combing spinning system is used, the carding belt is combed on a combing machine before refinement and compensation. With the card spinning system, combing is eliminated.
• Spinning is carried out on a ring spinning machine or on an OE cotton spinning machine. If a ring spinning machine is used, the spinning-the-pre-spinning takes place.
• the roving takes place on a roving machine with a 4-cylinder drafting device with a delivery of 15 to 18 m / min.
• the roving has a fineness of 0.66 ktex and 26 to 30 turns / m.
• the delivery on the ring spinning machines is 11 to 12 m / min at 360 to 380 turns / m, on the OE spinning machines 90 to 100 m / min at 650 to 670 turns / m.
• the yarns produced have a fineness of 50 to 34 tex. on.
• Variant 2 After unpacking the bales, the jute fibers are cut by guillotining to a length of 120 to 300 mm. The cut fibers are softened on a jute squeezer, on which the emulsification takes place. The type and amount of the emulsion are the same as for variant 1. The softened and emulsified fibers remain for 36 to 48 hours.
• the carding takes place on a fine card for hemp with a delivery of 35 to 45 m / min.
• the carding tape has a fineness of 20 to 36 ktex.
• the carding tape is cut again by tearing on a cutting machine with a delivery of 120 to 160 m / min and an initial fineness of the tape of 30 to 35 ktex.
• the cut ribbons are combed on a combing machine to remove the short fibers and then mixed with ribbons made of wool or wool-like chemical fibers or a mixture of wool and wool-like chemical fibers on the first passage of drafting machines for wool with a double-comb drafting field.
• the refinement and the compensation take place by using two further passages of warping machines for wool with a double-comb warping field.
• the roving takes place in the following sequence of passages: three passages of double-comb drafting machines and finisseur.
• the delivery of the double comb warping machines is 90 to 100 m / min.
• the fineness of the end product is 0.6 ktex.
• Spinning is done on a ring spinning machine for wool.
• the yarn produced has a fineness of 92 to 55 ktex.
• Variant 3 After unpacking the bales, the jute fibers are cut by guillotining and subjected to softening, emulsification, carding and cutting by tearing and combing according to the method described in variant 2.
• the difference to variant 2 is that the amount of emulsion is increased to 4 to 4.5% based on the dry cut fiber mass.
• the combed jute fiber tapes are ge with a ribbon of flax fibers or with flax-like chemical fiber tapes mixes and simultaneously refined and balanced on four passages of drafting machines with a double drafting field for flax.
• the delivery of the drafting machines is 110 to 130 m / min and the initial fineness of the belt from the last passage is 4 to 5 ktex.
• Spinning takes place on a ring spinning machine for dry spinning of flax with a delivery of 10 to 12 m / min and 330 to 360 rotation / m.
• Variant 4 After unpacking the bales, the jute fibers are cut by guillotining to a length of 500 to 600 mm, and then combed on a flax pike machine.
• the emulsification is carried out with a neutral mineral oil in an amount of 4 to 4.5% based on the dry fiber mass, after which the fibers remain in bat compartments for 24 to 25 hours.
• the fibers are then manually placed on a feeder to form a ribbon.
• the jute tapes with a fineness of 36 to 40 tex obtained on the lay-up machine are mixed with a tape made of flax or with flax-like chemical fiber tapes on the first passage of the flax drafting machines with a comb field.
• He refined and balanced the mixing tapes follow three further passages (a total of four passages) warping machines with comb fields with a delivery of 16 to 20 m / min.
• the fineness of the tape from the last passage is 4 to 5 ktex.
• the strips are pre-spun on a pre-spinning machine with a comb field and a delivery rate of 18 to 22 m / min.
• the fineness of the roving is 0.64 to 0.56 ktex.
• a ring spinning machine for flax is used.
• the water temperature in the trough is 50 to 60 ° C.
• the delivery of the machine is 10 to 11 m / min.
• the fine jute and jute-like yarns are dried in drying chambers equipped with thermoregulators to maintain a maximum temperature of 70 to 80 ° C.
• Variant 5 After the bales have been unpacked, the jute fibers are cut to a length of 220 to 300 mm by guillotining and subjected to softening, emulsification, retention and carding according to the method described in variant 2. The type of emulsion and the amount of mineral oil contained in it, based on the dry fiber mass, are the same as for variant 3.
• the carding tapes are made of jute fibers, pure or in a mixture with cotton, flax, wool or chemical fibers of a cotton-like, flax Similar or wool-like type refined and balanced on three to four passages warping machines.
• the delivery of the drafting machines is 20 to 35 m / min, the initial fineness of the belt is 0.5 to 4.0 tex.
• the refined and balanced tapes can also be spun.
• the strips are pre-spun on a pre-spinning machine with a comb field and a delivery rate of 18 to 22 m / min.
• the fineness of the roving is 0.45 to 0.64 ktex.
• Spinning is carried out on a ring spinning machine with an apron warping field.
• 1 to 4 chemical silk threads with a fineness of 50 to 100 dtex are fed in, which are twisted together with the warped jute ribbon.
• the spindle speed of the spinning machine is 3000 to 5000 rpm, the twist coefficient of the yarn is 60 to 130 ktex.
• Spinning is carried out on a ring spinning machine with an apron warping field.
• 1 to 4 chemical silk threads with a fineness of 50 to 100 dtex each are fed, which are twisted with the warped jute ribbon.
• the spindle speed of the spinning machine is 3000 to 5000 rpm, the twist coefficient of the yarn is 60 to 130.
• Jute-like yarns with a fineness of 165 to 34 tex are produced, which are reinforced with chemical silk.
• the advantages of the proposed method which in Five variants can be carried out, is that it enables the production of fine jute and jute-like yarns, which was previously impossible.
• the fine jute and jute-like yarns produced in this way are used to produce fine fabrics for household, decorative and technical purposes, making full use of the specific properties of the jute fibers possible.
• the jute fibers prepared in this way are mixed with cotton in a ratio of 25% jute and 75% cotton in an opener with simultaneous opening, beating and removal of the admixtures of the two types of fibers.
• the mixture of the two types of fibers is then carded on a card with a slat at a rate of 15 kg / h.
• the carding belt with a fineness of 4 ktex is refined and balanced on two drafting machine passages with a delivery of 160 m / h.
• the refinement is done by a six-fold draft and by feeding six tapes.
• Spinning takes place on an O E spinning machine with a delivery of 100 m / min and 660 turns / m of the yarn.
• the carding is done on a fine card for hemp with a delivery of 35 m / min and an initial fineness of the tape of 20: ktex.
• the carding tape produced is cut by tearing on a cutting machine with a delivery of 150 m / min and a fineness of the starting tape of 20 ktex.
• the cutting tape is combed on a combing machine and then mixed with wool and viscose fiber tapes on the first passage of the drafting machines for wool with a double-comb drafting field.
• the refinement and balancing of the mixing belts is carried out by using two further passages of the double comb warping machines for wool.
• the roving takes place in the following sequence of passages: three passages of the double-comb drafting machine (intersecting) and finisseur.
• the delivery of the double comb warping machines is 100 m / min, that of the finisher 80 m / min.
• the fineness of the end product is 0.6 ktex.
• the combed jute fiber tapes are mixed with the tapes made from modified viscose fibers on the first passage of the drafting machine and then refined on three further passages of the flax drafting machine with a double-comb drafting field.
• the delivery of the drafting machines is 120 m / min, the initial fineness of the tape from the last passage 4.5 ktex.
• the spinning takes place on a ring spinning machine for dry spinning of flax with a delivery of 11 m / min and 330 to 350 rotations / m, with the higher number of twists, i.e. 350 rotations / m being preferred due to the higher break frequency.
• the produced jute tape with a fineness of 36 tex is mixed with tapes made from modified viscose fibers on the first passage of the flax drafting machine with a comb drafting field.
• the mixing belts are refined and compensated for on four passages of the flax drawing machines with a delivery of 20 m / min.
• the fineness of the tape from the last passage is 4.5 ktex.
• the roving takes place on a roving machine for flax with comb fields and a delivery of 20 m / min.
• the fineness of the roving is 0.064 ktex and the number of turns is 30 turns / m.
• a flax wet ring spinning machine with a delivery of 10 to 11 m / min is used for spinning.
• the water temperature is 50 to 60 ° C.
• the yarn is dried in drying chambers at a maximum temperature of 80 ° C.
• Spinning is carried out on a ring spinning machine for dry spinning bast fibers at 3000 rpm.
• polyester silk with a fineness of 84 x 3 dtex is fed to the warping cylinder pair, which is twisted around the warped jute ribbon during spinning.
• the twist coefficient of the yarn produced is 60, the fineness 34 tex.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=3912252

Family Applications (1)

Country Status (5)

Cited By (11)

• 1983
  • 1983-05-26 BG BG6109483A patent/BG40087A1/xx unknown
• 1984
  • 1984-03-15 IN IN168/MAS/84A patent/IN160316B/en unknown
  • 1984-05-25 EP EP84106004A patent/EP0129724B1/fr not_active Expired
  • 1984-05-25 DE DE8484106004T patent/DE3473304D1/de not_active Expired
  • 1984-05-25 HU HU205284A patent/HUT34564A/hu unknown

Non-Patent Citations (3)

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