Terms and definitions related to yarn in the process of twisting, weaving and dipping

1) Twisting length of the bobbin: the length of the fiber or yarn wound on the bobbin after twisting.

2) Wool: The cord is fluffed due to yarn abrasion or raw silk.

3) Oil stained yarn: Yarn contaminated by oil.

4) Wrong denier silk: The same kind of raw silk in production, different deniers are not distinguished, resulting in wrong denier silk.

5) Package forming: the shape of the thread (silk) on the package after twisting.

6) Rattan-twisted silk: One (several) first-twisted silk is like a strand of rattan wrapped around other first-twisted silks.

7) Undrafted yarn twisting in: The undrafted strands of the raw yarn are twisted onto the bobbin and are not removed.

8) Knotted yarn: The yarn tension is too large to embed and affect the untwisting.

9) Single-twisted silk: the silk that is twisted due to missing strands when multiple strands are twisted.

10) Double-twisted yarn: twist one or more strands more than the specified requirements.

12) Damaged and deformed paper tube: The paper tube is incomplete, incomplete and deformed.

13) Connector wire tail length: the maximum length from the connector to the wire tail.

14) Wrong number of total warp: The total warp of the cord fabric does not match the process.

15) Tight warp: The warp has a large difference in warp tension and obvious tension stripes.

16) Warp (Weft) Density: Warp (Weft) line density exceeds the specified value.

17) Rough knots: rough knots produced due to uneven fiber arrangement or flying flowers attached to the yarn.

18) Strong twist or weak twist: After twisting, the twist of the cord exceeds the specified twist range, which is called strong twist or weak twist.

19) Obvious strong twist or weak twist: the twist of the cord exceeds or falls below the specified requirements.

20) Oil stains: Oil stains on the cloth surface are distributed in lumps instead of linear.

21) Selvedge silk tail: the weft line segment outside the edge warp.

22) Menstrual breakage or disengagement: Menstrual breakage refers to the breakage of the meridian, and the disengagement refers to the disengagement of the knot.

23) Interval broken weft: Interval broken weft. Continuous missing weft: consecutive empty wefts.

24) The length of the head cloth: the part of the cord fabric with thick weft yarn and large weft density is called the head cloth, and its length is the length of the head cloth.

25) Jumper (or parallel): The warp that should be interwoven is not interwoven with the weft as a jumper.

26) Fabric width: the width of the fabric.

27) Uneven roll posture: The unevenness of the cloth layer at both ends of the rolled cloth is the uneven roll posture.

28) The cloth shaft and the shaft center are protruding: the cloth layer near the wooden shaft of the cloth shaft is protruding.

29) Poor hemming: The hemming does not meet the requirements due to the hemming device or other reasons.

30) Weaving waste weft yarn: the weft insertion device brings the scrap weft yarn into the cloth surface or brings it into the cloth surface and weaves it in.

31) Edge density: The edge density exceeds the standard.

32) Mixed silk: silks of different materials, different strands, and different origins are mixed.

33) Requirements for seam head: length of seam head is 4-4.5cm, number of needles is 30-35, and thread tail is less than or equal to 3mm.

34) Cloth knot: Refers to the double twisted thread manual sewing head or knotter joint.

35) Parallel head: The adjacent warp and weft are exactly the same as the parallel head.

36) Adhesive strength (H-out): The force required to pull out the cord from the H-shaped rubber-cord test piece, expressed in N/cm.

37) The amount of glue attached: the ratio of the glue quality in the dipped cord to the quality of the blank cord, expressed in %.

38) Elongation at constant load: the elongation of the cord under the specified load, expressed in %.

39) Breaking strength: the force required to break one or a bundle of fibers, in N.

40) Breaking strength: For fibers, it refers to the maximum tensile force that each tex (or per denier) fiber can withstand, in N/tex or N/d.

41) Elongation at break: the percentage of the length of the fiber stretched to the original length when it is stretched to break, indicating the ability of the fiber to withstand tensile deformation, expressed in %.

42) Dry heat shrinkage: the percentage of the original length of the fiber or yarn of known length that shrinks after being heated under the action of specified temperature, time and load, expressed in %.

43) Cord fabric: Use strong strands as warp threads, medium and fine single yarns as weft threads, and use skeleton fabric for woven tires. Cord fabric is used as the skeleton material of rubber products such as tires, so that it can withstand huge pressure, impact load and strong vibration. The warp threads bear the load and the weft threads hold the warp threads. The requirements for the cord fabric are high strength and initial modulus, heat resistance, fatigue resistance, structural stability, and ability to bond with rubber.