Knitting Needles Overview
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Questions and Answers

What happens during the cast-off process in knitting?

  • The new loop is drawn through the old loop. (correct)
  • The old loop is retained in the needle.
  • The old loop permanently attaches to the yarn.
  • The new loop is drawn through the yarn only.

    • Who patented the latch needle and in which year?

  • Shakeel Ahmad Paracha, 1700
  • Matthew Townsend, 1849 (correct)
  • Matthew Townsend, 1700
  • Shakeel Ahmad Paracha, 1849

    • Which part of the latch needle serves to cover the hook when closed?

  • Latch spoon (correct)
  • Cheeks
  • Rivet
  • Slot

    • What characteristic makes the latch needle more expensive to manufacture than the bearded needle?

    <p>The assembly of the needle and latch</p> Signup and view all the answers

    In which knitting process is the latch needle most widely used?

    <p>Weft knitting</p> Signup and view all the answers

    What potential issue can arise if the latch of the latch needle is damaged?

    <p>It can make needle lines</p> Signup and view all the answers

    What does the term 'self-acting' refer to in the context of the latch needle?

    <p>It operates without external control</p> Signup and view all the answers

    Which part of the latch needle carries the loop in the clearing position?

    <p>Stem</p> Signup and view all the answers

    What determines the loop length in knitting?

    <p>Needle depth</p> Signup and view all the answers

    Which of the following describes the action of a latch needle when knitting?

    <p>It takes a longer time to knit a loop.</p> Signup and view all the answers

    What is a consequence of the latch needle's rubbing action with the yarn?

    <p>Fluff or lint accumulation</p> Signup and view all the answers

    Which action occurs when the needle butt passes up the incline of the clearing cam?

    <p>The old loop slides inside the hook, opening the latch.</p> Signup and view all the answers

    What does the feeder guide plate do during the clearing height of the knitting cycle?

    <p>It prevents the latch from closing on the empty hook.</p> Signup and view all the answers

    What happens during the yarn feeding and latch closing phase?

    <p>The old loop contacts the underside of the latch.</p> Signup and view all the answers

    What does the continued descent of the needle accomplish?

    <p>It draws the loop length.</p> Signup and view all the answers

    What is a disadvantage of using latch needles in knitting machines?

    <p>They make the machine run slower.</p> Signup and view all the answers

    What is a key advantage of the compound needle in knitting?

    <p>It can knit chain stitches without loops rising.</p> Signup and view all the answers

    In which orientation can needles in a knitting machine be held?

    <p>Horizontally, vertically, or at 45º</p> Signup and view all the answers

    What distinguishes a latch needle from a bearded needle?

    <p>Latch needles are self-acting, while bearded needles are not.</p> Signup and view all the answers

    Which statement is true about the knitting cycle of a bearded needle?

    <p>It generates high levels of fly and fluff.</p> Signup and view all the answers

    What happens during the 'link-up' phase of the compound needle's knitting action?

    <p>The interlooping process is completed.</p> Signup and view all the answers

    What is true about the construction of compound needles?

    <p>They have a sturdy construction that resists deflection.</p> Signup and view all the answers

    Which characteristic of latch needles contributes to their cost?

    <p>They provide a self-acting mechanism.</p> Signup and view all the answers

    What is a primary reason behind the design of needle beds?

    <p>To provide stability for needle orientation.</p> Signup and view all the answers

    What is the primary advantage of using a compound needle in warp knitting machines?

    <p>It allows for a shorter and smoother knitting action.</p> Signup and view all the answers

    Which part of the compound needle moves faster at the top of its rise?

    <p>The open hook</p> Signup and view all the answers

    What key feature differentiates the pusher type from the tubular pipe compound needle?

    <p>The pusher type's tongue slides externally along a groove.</p> Signup and view all the answers

    How does the movement of the parts of a compound needle compare to traditional needle designs?

    <p>They rise and fall as a single unit but can operate collectively.</p> Signup and view all the answers

    What is a common characteristic of compound needles in warp knitting machines?

    <p>They are designed to minimize strain on the yarn.</p> Signup and view all the answers

    Which statement best describes the cost of manufacturing compound needles?

    <p>They are expensive to manufacture compared to other needles.</p> Signup and view all the answers

    What is a distinguishing feature of the compound needle's design regarding the knitting speed?

    <p>The design allows for an increased knitting speed.</p> Signup and view all the answers

    What is the primary role of the sliding closing element in a compound needle?

    <p>To close the hook after the yarn is inserted.</p> Signup and view all the answers

    What is the primary function of the needle in a knitting machine?

    <p>To intermesh loops of yarn</p> Signup and view all the answers

    Which type of needle is primarily used in weft knitting?

    <p>Latch needle</p> Signup and view all the answers

    What can small variations in needle manufacture lead to?

    <p>Irregular fabric quality</p> Signup and view all the answers

    Which part of the bearded needle helps to draw the new loop through the old loop?

    <p>Head</p> Signup and view all the answers

    What characteristic of needles contributes to their durability?

    <p>High strength and toughness</p> Signup and view all the answers

    Which type of knitting uses bearded and compound needles?

    <p>Warp knitting</p> Signup and view all the answers

    What is a defining feature of a coarse needle in knitting?

    <p>It knits with coarse yarn</p> Signup and view all the answers

    What part of the bearded needle encloses the new loop when pressed?

    <p>Groove or eye</p> Signup and view all the answers

    What is a key disadvantage of bearded needles in knitting?

    <p>They require a pressing edge to close the bearded hook.</p> Signup and view all the answers

    How does the design of bearded needles affect productivity?

    <p>It limits productivity because the knitting section occupies considerable space.</p> Signup and view all the answers

    Which statement accurately describes the bearded needle manufacturing process?

    <p>It is the cheapest and simplest type to manufacture.</p> Signup and view all the answers

    What role does the presser play in the function of a bearded needle?

    <p>It helps to close the beard and enclose the new loop.</p> Signup and view all the answers

    What is the benefit of using finer needle cross sections?

    <p>They enable a higher density of needles in a unit space.</p> Signup and view all the answers

    In which type of knitting is a presser bar specifically used with bearded needles?

    <p>Warp knitting</p> Signup and view all the answers

    What is a significant consequence of using bearded needles on fabric appearance?

    <p>They are prone to produce needle marks on the fabric.</p> Signup and view all the answers

    How does the action of a bearded needle differ during loop formation?

    <p>It necessitates interaction with a loop forming element.</p> Signup and view all the answers

    Study Notes

    Heart of Knitting

    • The primary component for intermeshing loops in knitting machines is the needle.
    • Needle quality directly impacts the quality of the knitted fabric.
    • Small variations in needle manufacture can lead to irregularities in the fabric.
    • Needles must possess high strength and smoothness to allow yarn and loop free movement, ensuring durability.
    • Typical needles execute millions of knitting actions without failure.

    Types of Needles

    • Three main needle types exist: bearded, latch, and compound.
    • Knitting processes differ slightly for each needle type.
    • All needles must have a mechanism to close and open their hooks, capturing and retaining yarn loops, and achieving intermeshing.
    • Latch needles primarily used in weft knitting.
    • Bearded and compound needles are usually utilized in warp knitting.
    • Needle size (thickness) is correlated with yarn thickness (coarse/fine).

    Bearded Needle

    • Earliest knitting machine needle type.
    • Utilized by William Lee in 1589 for stocking frames.
    • Mimicked manual hand-knitting techniques using two needles.
    • Composed of five essential parts: head, beard, eye, stem, and shank.
    • Head: Looping action initiation
    • Beard: Separates loops, guiding them off the needle.
    • The beard is important for separating new loops and placing them in the intermeshing pattern.
    • Simple to manufacture, but with space constraints leading to lower productivity in certain machine designs.
    • Vertical or horizontal needle positioning for different machine types.
    • Presser mechanisms close the hook, enclosing new loops.
    • Used in warp knitting predominantly for better wear and tear resistance.
    • Low cost and easy fabrication.
    • More prone to wear and tear and breakage.

    Latch Needle

    • Patented in 1849 by Matthew Townsend.
    • Developed approximately 260 years after bearded needle technology.
    • Superior quality, high-precision fabric production.
    • More intricate than bearded needle design.
    • More expensive to manufacture.
    • Parts include hook, slot, cheeks, rivet, latch-blade, latch spoon, stem, butt, and tail.

    Compound Needle

    • Designed by Jeacock in 1856.
    • Sophisticated design with two independently controlled components (open hook and closing element).
    • Hollow, steel tubes (hook and closing element) for high-speed operation and yarn manipulation.
    • Allows synchronized hook motions for more efficient knitting and improved fabric quality.
    • Two types of compound needles: pusher and tubular pipe.

    Latch Needle and Knitting Action

    • Knitting cycle: Resting, opening, yarn feeding, loop formation, closing, and loop ejection.
    • Positions are based on the machine design (cam, etc.).

    Compound Needle Knitting Action

    • Knitting cycle includes initial yarn alignment, loop formation by closing mechanism, and final interlooping.
    • Needle orientation: Vertical, horizontal, or 45 degrees.
    • Secured by needle beds (metal support structures).

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    Knitting Needles PDF

    Description

    Explore the various types of knitting needles, their functions, and the impact of needle quality on knitted fabric. This quiz will cover essential details about needle types, including bearded, latch, and compound, as well as their roles in different knitting processes.

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