Knitting Techniques and History
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Questions and Answers

What significant advancement in circular knitting technology occurred after 1946?

  • Introduction of electronic needle selection
  • Increase in feeder numbers and production speeds (correct)
  • Development of flat knitting machines
  • Launch of computerized whole garment knitting machines

    • In what year was the first electronic needle selection demonstrated?

  • 1995
  • 1987
  • 1963 (correct)
  • 1920

    • Which sector of the knitting industry involves forming loops across the width of the fabric?

  • Loom knitting
  • Circular knitting
  • Warp knitting
  • Weft knitting (correct)

    • What is a primary advantage of knitting over weaving?

    <p>Lower capital investment</p> Signup and view all the answers

    What was notable about the Relaint machine introduced in 1987?

    <p>It featured a relative movement between needles and sinkers.</p> Signup and view all the answers

    What is the maximum number of threads that modern circular weft knitting machines can operate with?

    <p>192 threads</p> Signup and view all the answers

    How does the productivity of knitting compare to weaving?

    <p>Knitting has higher productivity than weaving.</p> Signup and view all the answers

    Which feature is a difficulty associated with weaving machines?

    <p>High complexity in design modification</p> Signup and view all the answers

    Which of the following is a reason for the growing popularity of knitted fabrics?

    <p>Knit fabrics are highly stretchable.</p> Signup and view all the answers

    What significant advancement in knitting technology occurred in 1847?

    <p>Patent for the Latch Needle.</p> Signup and view all the answers

    What was the earliest known example of true knitting?

    <p>A pair of socks found in Egypt dating back to A.D. 1100.</p> Signup and view all the answers

    Which of the following statements about knit fabrics is incorrect?

    <p>Knit fabrics are preferred for structured garments.</p> Signup and view all the answers

    Who invented the double knit in 1758?

    <p>Jedediah Strutt.</p> Signup and view all the answers

    In which century did hand knitting become established as a craft?

    <p>16th Century.</p> Signup and view all the answers

    Which invention in 1918 significantly contributed to the evolution of knitting machines?

    <p>The double cylinder, small circular knitting machine.</p> Signup and view all the answers

    What characteristic makes knitted fabrics relate well to contemporary lifestyles?

    <p>Their flexibility and comfort.</p> Signup and view all the answers

    What is the term used to describe the loops formed in warp knitting?

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

    What happens when only underlaps are formed in a multi-guide warp knitting structure?

    <p>It forms an inlay bar</p> Signup and view all the answers

    In the combined use of overlap and underlap, what type of fabric is produced if both are moving in the same direction?

    <p>Open lap fabric</p> Signup and view all the answers

    What is the wrapping of the yarn around the needle called in warp knitting?

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

    What describes the guide bar that only creates underlaps in a knitting structure?

    <p>Inlay bar</p> Signup and view all the answers

    Which of the following accurately describes a pillar stitch in knitting?

    <p>A stitch used with lapping movements</p> Signup and view all the answers

    What is formed by the joining of overlap and underlap moving in opposite directions?

    <p>Closed lap</p> Signup and view all the answers

    Which part of a warp knitted structure is specifically formed by wrapping the yarn around the needle?

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

    What is a defining characteristic of warp knitting compared to weft knitting?

    <p>Every needle has its own separate yarn supply.</p> Signup and view all the answers

    What role do underlaps play in warp knitting?

    <p>They influence the pattern effects on the fabric.</p> Signup and view all the answers

    How can warp knitted fabrics be visually distinguished from weft-knitted fabrics?

    <p>By examining the face and back of the fabric.</p> Signup and view all the answers

    What pattern characteristic is commonly seen on the technical face of warp knitted fabrics?

    <p>Knit stitches running vertically in a lengthwise direction.</p> Signup and view all the answers

    What type of stitch forming process is warp knitting classified as?

    <p>A stitch formation process involving lateral deflection of yarns.</p> Signup and view all the answers

    In what manner do the diagonal lines of yarns (underlaps) run on the back side of a warp knitted fabric?

    <p>In a zigzag manner running both right and left.</p> Signup and view all the answers

    What is the effect of the extent and direction of underlap floats in warp knitting?

    <p>They enable a variety of design possibilities.</p> Signup and view all the answers

    What unique feature does the overlap in warp knitting ensure?

    <p>The same needle receives yarn feed continuously.</p> Signup and view all the answers

    What is the term used for the length of yarn linking together the stitches in knitting?

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

    Which characteristic does NOT describe warp knitted fabrics?

    <p>Typically very stretchy</p> Signup and view all the answers

    In warp knitted fabrics, what is the result of neither overlap nor underlap occurring?

    <p>Warp float in the fabric</p> Signup and view all the answers

    What effect do guide bars have in the formation of certain warp knit fabrics?

    <p>They lay the warps straight without lateral movement.</p> Signup and view all the answers

    What property enables warp knitted fabrics to resist creasing effectively?

    <p>Good crease resistance</p> Signup and view all the answers

    Which of the following statements about the versatility of warp knitted fabrics is correct?

    <p>They are extremely versatile in pattern effects with yarn.</p> Signup and view all the answers

    What happens during the formation of a closed lap in knitting?

    <p>The thread loops are tightly packed.</p> Signup and view all the answers

    What advantage does a warp knitted fabric structure provide over a woven fabric?

    <p>Greater resistance to seams unraveling</p> Signup and view all the answers

    What is the primary role of overlap in warp knitting?

    <p>To wrap the yarn around the needle</p> Signup and view all the answers

    Which term is used to describe the interlocking of yarns when only underlaps are formed?

    <p>Inlay yarn</p> Signup and view all the answers

    What type of fabric results from the combination of overlap and underlap moving in opposite directions?

    <p>Closed lap fabric</p> Signup and view all the answers

    Which of the following accurately describes the stitch formation in warp knitting?

    <p>Yarn wraps around the needle to form loops</p> Signup and view all the answers

    What limitation is associated with using only underlaps in warp knitted structures?

    <p>They cannot form fabrics on their own</p> Signup and view all the answers

    In warp knitting, what is an inlay bar primarily responsible for?

    <p>Only producing underlaps with no loop formation</p> Signup and view all the answers

    What type of fabric is formed when overlap and underlap are moving in the same direction?

    <p>Open lap fabric</p> Signup and view all the answers

    Which of the following statements is true regarding the formation of a pillar stitch?

    <p>It cannot stand alone and requires an overlap</p> Signup and view all the answers

    What is formed by the lateral movement of yarns across the needles in warp knitting?

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

    Which of the following characteristics is NOT typical for warp knitted fabrics?

    <p>Good elasticity</p> Signup and view all the answers

    Which stitch formation process is a primary feature of warp knitting?

    <p>Closed lap</p> Signup and view all the answers

    What type of fabric structure is created with neither overlap nor underlap occurring?

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

    What best describes the function of guide bars in warp knitting?

    <p>They lay warps directly without lateral movement.</p> Signup and view all the answers

    Which of the following is a characteristic of an open lap in warp knitting?

    <p>Greater drapability</p> Signup and view all the answers

    What effect does the combination of overlap and underlap have in warp knitted fabrics?

    <p>Provides stability and strength to the fabric.</p> Signup and view all the answers

    What pattern effect can be achieved with warp knitted fabrics?

    <p>Intricate designs through manipulation</p> Signup and view all the answers

    How are the yarns supplied to the knitting zone in warp knitting?

    <p>Parallel to the selvage of the fabric</p> Signup and view all the answers

    What distinguishes the technical face of a warp knitted fabric from its back side?

    <p>The clarity of vertical stitches</p> Signup and view all the answers

    What is the role of underlaps in warp knitting?

    <p>To influence pattern design effects</p> Signup and view all the answers

    Which structural feature of warp knitted fabrics runs diagonally on the back side?

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

    What causes the variety of design possibilities in warp knitting?

    <p>The length and direction of underlap floats</p> Signup and view all the answers

    What is one way to distinguish warp knitted fabrics from weft knitted materials?

    <p>Look for lateral deflection of yarns</p> Signup and view all the answers

    In what manner does a knitting needle interact with the yarns during the stitch forming process in warp knitting?

    <p>It draws new yarn loops through existing stitches</p> Signup and view all the answers

    What defines the overlap in a warp knitted fabric structure?

    <p>It ensures a specific needle has consistent yarn supply</p> Signup and view all the answers

    Study Notes

    Introduction

    • Knitting is a technique for creating fabric from yarn.
    • Knitted fabrics are becoming more popular in various applications.
    • Knitted fabrics are commonly used in hosiery, underwear, sweaters, pants, rugs, and home furnishings.
    • Knit fabrics are usually soft and drape well.
    • They readily conform to body movement due to their ability to mold and move easily.
    • Knit fabrics are highly stretchable and wrinkle-resistant.
    • Their adaptability to contemporary lifestyles makes them popular.

    History of Knitting

    • Hand knitting has existed for thousands of years but the exact origins are unknown.
    • Knitting was predominantly a woman's activity for a long time.
    • Knitted socks dating back to the 1100s AD were found in Egypt.
    • Knitting progressed from a craft into an industry starting in the 16th century.
    • Notable advancements were made such as Jedidiah Strutt's invention of double knit and Matthew Townsend's invention of the Latch Needle in the 1800s.
    • Further developments involved circular knitting machines.

    Comparison Between Weaving and Knitting

    • Weaving: Interweaving warp and weft threads at right angles. High initial investment, complicated setup, and lower productivity in weaving when compared to knitting.
    • Knitting: Interlooping yarns to form a fabric. Lower initial investment, simpler setup, and higher productivity than weaving.

    Comparison Between Woven and Knitted Fabrics

    • Woven Fabrics: Less stretchable, good elastic recovery, less crease resistance, thin fabrics. Easier to tear, require ironing, high pleat sharpness, and less permeable to air.

    • Knitted Fabrics: Highly stretchable, incomplete elastic recovery, high crease resistance, thicker fabrics. Difficult to tear, doesn't require ironing, low pleat sharpness, and more permeable to air.

    Classification of Knitting

    • Weft knitting: Loops are formed across the fabric width, threads are inserted more or less at a right angle to the fabric's direction.
    • Warp knitting: Loops are formed vertically along the fabric's length; threads are inserted down the fabric length.

    Weft Knitting

    • Loops are formed across the full width of the fabric.
    • Usually uses latch needles.
    • Less versatile but potentially faster.
    • Lower initial costs for machinery and lower running costs compared to warp knitting

    Warp Knitting

    • Loops form vertically along the fabric's length.
    • Uses multiple needles.
    • More versatile – can produce complex patterns.
    • Higher initial investment and running costs compared to weft knitting.

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    Related Documents

    Introduction to Knitting PDF
    Warp Knitting Fabrics Basics of knitting PDF

    Description

    Explore the fascinating world of knitting, a technique used for creating various fabrics from yarn. This quiz delves into the historical significance of knitting, its evolution from craft to industry, and the reasons behind the popularity of knitted fabrics today. Test your knowledge about different types of knit fabrics and their applications.

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