Podcast
Questions and Answers
What is the primary function of a loom in the weaving process?
What is the primary function of a loom in the weaving process?
- To calculate the width of the fabric
- To dye the weft threads
- To hold the warp yarns taut and under tension (correct)
- To create patterns on the fabric
What are warp threads and weft threads in weaving?
What are warp threads and weft threads in weaving?
- Threads that run vertically and horizontally, respectively (correct)
- Threads that are only used in handlooms
- Threads that are used for embellishment
- Threads that run diagonally across the fabric
Which component of the loom is responsible for spacing the warp and beating the weft?
Which component of the loom is responsible for spacing the warp and beating the weft?
- Batten (correct)
- Shaft
- Beam
- Heddle
What does a loom's shaft control during weaving?
What does a loom's shaft control during weaving?
What is the purpose of the cloth beam in a loom?
What is the purpose of the cloth beam in a loom?
Which feature of a loom can vary in number from as few as 2 to as many as 24?
Which feature of a loom can vary in number from as few as 2 to as many as 24?
How can a loom with more than one back beam be beneficial?
How can a loom with more than one back beam be beneficial?
What does the term 'dressing a loom' refer to?
What does the term 'dressing a loom' refer to?
What is the primary characteristic of a mock leno weave?
What is the primary characteristic of a mock leno weave?
Which of the following is NOT a reason to use double weave?
Which of the following is NOT a reason to use double weave?
In honeycomb weave, what appearance do the warp and weft yarns create?
In honeycomb weave, what appearance do the warp and weft yarns create?
What type of fabric can be produced on a Jacquard loom?
What type of fabric can be produced on a Jacquard loom?
What effect can be achieved by interlacing yarns from both top and lower cloths in double weave?
What effect can be achieved by interlacing yarns from both top and lower cloths in double weave?
Which characteristic of damask fabrics primarily contributes to their unique appearance?
Which characteristic of damask fabrics primarily contributes to their unique appearance?
How can mock leno structures affect the appearance of finished fabrics?
How can mock leno structures affect the appearance of finished fabrics?
What makes the honeycomb weave fabric particularly absorbent?
What makes the honeycomb weave fabric particularly absorbent?
What is one mechanism by which double weave fabrics can trap objects?
What is one mechanism by which double weave fabrics can trap objects?
What is the impact of low-count yarns on damask fabric durability?
What is the impact of low-count yarns on damask fabric durability?
What is a primary limitation of a rigid heddle loom?
What is a primary limitation of a rigid heddle loom?
Which loom type allows for simultaneous raising of multiple shafts by utilizing pedals?
Which loom type allows for simultaneous raising of multiple shafts by utilizing pedals?
What is the advantage of a dobby loom over a table loom?
What is the advantage of a dobby loom over a table loom?
What function does the Jacquard mechanism serve in a Jacquard loom?
What function does the Jacquard mechanism serve in a Jacquard loom?
When preparing warp yarn, what is a crucial characteristic it must have?
When preparing warp yarn, what is a crucial characteristic it must have?
Which of the following is NOT a feature of a floor loom?
Which of the following is NOT a feature of a floor loom?
What is a disadvantage of using a computerised loom?
What is a disadvantage of using a computerised loom?
In a table loom, how are the shafts operated?
In a table loom, how are the shafts operated?
Which statement accurately describes a counterbalanced loom?
Which statement accurately describes a counterbalanced loom?
What is a common method for determining the length of warp yarn needed?
What is a common method for determining the length of warp yarn needed?
What is a significant feature of the dobby loom regarding the lifting of shafts?
What is a significant feature of the dobby loom regarding the lifting of shafts?
Which loom is primarily designed for intricate patterns requiring more than 24 shafts?
Which loom is primarily designed for intricate patterns requiring more than 24 shafts?
What is the primary use of additional techniques on a rigid heddle loom?
What is the primary use of additional techniques on a rigid heddle loom?
What is the purpose of counting the number of single warp threads in a 1 inch section?
What is the purpose of counting the number of single warp threads in a 1 inch section?
What is included when calculating the total number of warp ends needed for cloth production?
What is included when calculating the total number of warp ends needed for cloth production?
What is the first step when dressing the loom?
What is the first step when dressing the loom?
How are yarns counted during the warping process?
How are yarns counted during the warping process?
When applying flat sticks during the beaming process, what is their main purpose?
When applying flat sticks during the beaming process, what is their main purpose?
What should be done with the cross-sticks after placing them in the warp?
What should be done with the cross-sticks after placing them in the warp?
During sleying, how many yarns should ideally be placed in each reed dent?
During sleying, how many yarns should ideally be placed in each reed dent?
What is the role of raddling in the dressing of the loom?
What is the role of raddling in the dressing of the loom?
What is the main purpose of the heddles in the weaving process?
What is the main purpose of the heddles in the weaving process?
What should happen to the ties made around the crosses before removing the warp from the frame?
What should happen to the ties made around the crosses before removing the warp from the frame?
Why is it important to leave some warp unwound during the beaming process?
Why is it important to leave some warp unwound during the beaming process?
What does the ratio of warp ends to shafts in a plain-weave structure typically indicate?
What does the ratio of warp ends to shafts in a plain-weave structure typically indicate?
What is the recommended practice to avoid ‘cramming’ of warp yarns in a dent?
What is the recommended practice to avoid ‘cramming’ of warp yarns in a dent?
What is the primary purpose of the documentation created during the planning of woven textiles?
What is the primary purpose of the documentation created during the planning of woven textiles?
Which type of draft represents the basic layout for organizing yarns in weaving?
Which type of draft represents the basic layout for organizing yarns in weaving?
In what way does a pointed draft differ from a straight draft?
In what way does a pointed draft differ from a straight draft?
What is the significance of reed planning in the weaving process?
What is the significance of reed planning in the weaving process?
Which of the following best describes a balanced weave structure?
Which of the following best describes a balanced weave structure?
Which type of documentation is traditionally utilized for planning woven textile designs?
Which type of documentation is traditionally utilized for planning woven textile designs?
How are warp threads typically represented in a lifting plan diagram?
How are warp threads typically represented in a lifting plan diagram?
What drafting method is more commonly used among weavers?
What drafting method is more commonly used among weavers?
Which weave structure is foundational and serves as a basis for developing other types of weave patterns?
Which weave structure is foundational and serves as a basis for developing other types of weave patterns?
What is a key characteristic of unbalanced weave structures?
What is a key characteristic of unbalanced weave structures?
What role do shaded squares in point paper play in weaving?
What role do shaded squares in point paper play in weaving?
Which technique is used to document the order of threading heddles in a weaving plan?
Which technique is used to document the order of threading heddles in a weaving plan?
What best describes the scattered draft method in weaving?
What best describes the scattered draft method in weaving?
What is the primary focus when creating a lifting plan for weave structures?
What is the primary focus when creating a lifting plan for weave structures?
What is true about a balanced plain weave?
What is true about a balanced plain weave?
Which of the following statements is accurate about unbalanced plain weave?
Which of the following statements is accurate about unbalanced plain weave?
What characterizes a twill weave?
What characterizes a twill weave?
Which type of cloth typically results from more warp yarns than weft yarns in an unbalanced plain weave?
Which type of cloth typically results from more warp yarns than weft yarns in an unbalanced plain weave?
What advantage do basket weaves offer compared to plain weaves?
What advantage do basket weaves offer compared to plain weaves?
What unique feature does satin weave have?
What unique feature does satin weave have?
What results from using textured yarns in a plain weave fabric?
What results from using textured yarns in a plain weave fabric?
Which of the following describes the properties of twill weave fabrics?
Which of the following describes the properties of twill weave fabrics?
What does having more weft yarns than warp yarns create in a fabric?
What does having more weft yarns than warp yarns create in a fabric?
How does a herringbone twill differ from a standard twill?
How does a herringbone twill differ from a standard twill?
What is the primary use of satin-woven fabrics?
What is the primary use of satin-woven fabrics?
What characteristic of twill weave makes it suitable for work apparel?
What characteristic of twill weave makes it suitable for work apparel?
What defines mock leno compared to true leno?
What defines mock leno compared to true leno?
Which statement best explains the effect of sett in weaving?
Which statement best explains the effect of sett in weaving?
What is the result of using a lower number of interlacings in a fabric?
What is the result of using a lower number of interlacings in a fabric?
Flashcards
Warp Threads
Warp Threads
The lengthwise threads that run the length of the fabric.
Weft Threads
Weft Threads
The crosswise threads that run the width of the fabric, interlacing with the warp threads.
Loom
Loom
A frame that holds the warp yarns taut and under tension during weaving.
Shaft
Shaft
A device on the loom that controls the rise and fall of the warp threads. Composed of an upper and lower bar with heddles.
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Heddles
Heddles
Small loops attached to the shafts that the warp threads are threaded through.
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Batten
Batten
A pivoted frame holding the reed, used for spacing the warp yarns and beating the weft into place.
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Reed
Reed
A slotted frame attached to the batten, used to space the warp yarns and to compress the weft threads into the fabric.
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Double Cloth
Double Cloth
A type of weaving where two sets of warp yarns are interlaced to create a thicker, more durable fabric.
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Mock Leno Weave
Mock Leno Weave
A woven fabric structure where groups of warp or weft threads interlace in an opposite way to their adjacent groups, creating openings in the cloth.
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Double Weave
Double Weave
A weave where two layers of cloth are interlaced, creating a thicker, often reversible fabric.
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Double Weave Interlacing
Double Weave Interlacing
The interlacing of the two layers of fabric in a double weave can be done in various ways, such as interlacing small amounts of yarns from the lower cloth with yarns from the top cloth.
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Honeycomb Weave
Honeycomb Weave
A weave structure that creates a honeycomb-like appearance with hollows and ridges formed by the warp and weft yarns.
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Jacquard Weaves
Jacquard Weaves
Weaves produced on a Jacquard loom, allowing complex figured designs and patterns.
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Damask
Damask
A type of Jacquard weave fabric known for its subtle patterns created by different light reflections on the fabric.
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Brocade
Brocade
A type of Jacquard weave fabric with a satin-like surface and long floats.
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Brocatelle
Brocatelle
A type of Jacquard weave fabric with a raised, embossed pattern that resembles tapestry.
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Tapestry
Tapestry
A type of Jacquard weave fabric where the design is created by interlacing different colored yarns.
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Yarn Count and Damask Durability
Yarn Count and Damask Durability
The quality and durability of Damask fabrics depend on the yarn count. Fine-yarn damask is less durable due to the long floats.
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Twill Weave
Twill Weave
A fabric structure with a distinct diagonal line created by the weft yarn floating over warp yarns, typically using four or more shafts.
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Herringbone Twill
Herringbone Twill
A type of twill weave where the diagonal twill line changes direction intermittently, forming a zigzag pattern.
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Satin Weave
Satin Weave
A fabric structure where weft yarns are dominant on the face, creating a smooth, lustrous surface, often with a sheen.
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Balanced Plain Weave
Balanced Plain Weave
A type of plain weave with an even number of warp and weft yarns interlacing, resulting in a fabric with no distinguishable face or back.
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Sett
Sett
The number of warp yarns per inch on a loom.
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Unbalanced Plain Weave
Unbalanced Plain Weave
A type of plain weave where the number of warp and weft yarns are unequal, resulting in fabrics with either a warp- or weft-faced appearance.
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Basket Weave
Basket Weave
A fabric structure where two or more adjacent warp yarns are controlled by the same shaft and two or more weft yarns pass through the same shed, creating a pattern resembling a basket weave.
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Derivative Weave Structures
Derivative Weave Structures
Fabric structures that are developed from basic weaves, often adding complexity or special effects.
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Mock Leno
Mock Leno
A type of open-weave fabric that resembles lace or gauze, created by interlacing warp and weft threads in a specific pattern.
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Pick
Pick
A weft yarn that passes through the shed of the loom, creating a horizontal line in the fabric.
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Beating Down
Beating Down
The process of pushing the newly inserted weft yarn against the previously woven fabric with a reed, securing it in place.
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Harness
Harness
A framework on a loom holding warp yarns, often divided into multiple shafts.
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Weft
Weft
The horizontal yarns in a fabric structure.
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Warp
Warp
The vertical yarns in a fabric structure.
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Yarn Count
Yarn Count
The density or thickness of a yarn.
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Warp Dressing
Warp Dressing
The process of attaching warp yarns to the loom, creating even tension across the width.
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Weaving Documentation
Weaving Documentation
Documentation used to recreate the structure of a woven fabric. It details the arrangement of warp threads, heddle threading, shaft lifting, and reed sleying.
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Point Paper
Point Paper
A grid-based paper used to document the weaving process, showing the arrangement of warp and weft threads.
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Threading Plan
Threading Plan
A diagram showing the order in which individual warp threads are threaded through the heddles of the shafts.
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Lifting Plan
Lifting Plan
A diagram illustrating the sequence of raising and lowering shafts to create different weave structures and patterns.
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Reed Plan
Reed Plan
A diagram documenting the placement and arrangement of warp threads within the reed.
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Drafting
Drafting
A system for organizing the warp threads on the loom shafts, impacting the resulting weave pattern.
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Straight Draft
Straight Draft
The most fundamental draft, where threads are drawn onto successive shafts in a continuous sequence.
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Pointed Draft
Pointed Draft
A draft where warp threads are drawn straight, then reversed to create a distinctive pattern.
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Scattered Draft
Scattered Draft
A draft where warp threads are interwoven in a non-linear pattern, creating a complex, often decorative design.
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Weave Structure
Weave Structure
The way warp and weft threads interlace, creating a fabric's structure.
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Balanced Weave
Balanced Weave
A fabric or weave where the warp and weft yarn counts are equal, resulting in balanced strength and drape.
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Unbalanced Weave
Unbalanced Weave
A fabric or weave with significantly more warp or weft yarn, impacting texture and drape.
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Basic Weave
Basic Weave
Basic weave structures, such as plain, twill, and satin, serve as foundational building blocks for more complex weaves.
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Rigid Heddle Loom
Rigid Heddle Loom
A type of loom that is easy to use but limited to creating plain-weave fabrics.
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Table Loom
Table Loom
A loom that can create a variety of weave structures, up to 16 shafts, and is suitable for smaller items like scarves and cushion covers.
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Floor Loom
Floor Loom
A loom with pedals that allow for faster weaving by using foot power to raise and lower shafts.
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Counterbalanced Loom
Counterbalanced Loom
A type of floor loom where the shafts are connected to lams or marches, which are supported under the shaft. This helps to lift the shafts evenly for efficient weaving.
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Dobby Loom
Dobby Loom
A loom fitted with a device that allows for rapid changes in shaft combinations for more intricate weave structures. This device uses pegs arranged in lags to select which shafts are lifted.
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Computerized Loom
Computerized Loom
A loom that is controlled by a computer and uses software to set the warp yarn positions for various weave structures. This enables fast and versatile weaving.
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Jacquard Loom
Jacquard Loom
A loom designed for intricate patterns and weave structures, using individual heddles controlled by a Jacquard mechanism. This mechanism was once controlled by punched cards, but is now primarily controlled by microcomputer systems.
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Dressing the Loom
Dressing the Loom
The process of preparing the warp threads (the lengthwise threads) for weaving, including ensuring they are the correct length and tension, and are arranged in the desired order.
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Warp Yarn
Warp Yarn
The yarn used for the lengthwise threads of a woven fabric.
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Weft Yarn
Weft Yarn
The yarn used for the crosswise threads of a woven fabric.
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Calculating the Warp Yarns
Calculating the Warp Yarns
The process of determining the total number of warp yarns needed for a desired length and width of fabric, accounting for any necessary extra yarn for waste.
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Plain Weave
Plain Weave
A plain weave structure where the warp yarns are spaced evenly apart, resulting in a simple, unpatterned fabric.
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Calculating warp ends per inch
Calculating warp ends per inch
The number of warp ends needed per inch of cloth is determined by wrapping single warp threads around a piece of card until it's covered by 1 inch, then counting the number of threads within that inch.
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Calculating total warp ends
Calculating total warp ends
To calculate the total number of warp ends needed, multiply the number of warp ends per inch by the desired width of the cloth.
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Selvedge
Selvedge
Additional warp ends are added to create a selvedge, a finished edge of the cloth, typically half an inch wide.
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Warping frame or mill
Warping frame or mill
A warping frame or mill is used to wind warp yarns at tension, creating a long, organized set of threads ready for weaving.
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Contrasting yarn for warp counting
Contrasting yarn for warp counting
A contrasting color yarn is inserted under and over warp yarns at regular intervals to help count the warp threads.
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Ties at the warp cross sections
Ties at the warp cross sections
Ties of contrasting yarn are placed around the warp cross sections at both ends of the frame to mark the ends of the warp.
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Warp chain
Warp chain
A chain is created by looping the top end of the warp through itself, forming a continuous loop that makes the warp easier to handle.
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Back stick
Back stick
The back stick secures the lower cross of the warp to the back beam and helps maintain tension.
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Raddle
Raddle
The raddle is a tool used to space the warp threads at regular intervals, ensuring even spacing for weaving.
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Back beam apron
Back beam apron
The warp end loops are attached to the back beam apron, which is part of the back beam assembly.
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Beaming
Beaming
The process of winding the warp onto the back beam, creating a continuous section of yarn for weaving.
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Using sticks and paper during beaming
Using sticks and paper during beaming
Flat sticks and thin paper are used during beaming to prevent the warp yarns from sticking together and ensure even tension.
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Sleying
Sleying
Sleying is the process of placing spaced warp ends through the dents of the reed, guiding the warp for weaving.
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Handloom Weaving Techniques
- Weaving is the interlacement of warp (vertical) and weft (horizontal) threads.
- Various loom types exist, all serving to hold warp threads taut and guide weft insertion.
Loom Types
- Rigid Heddle Loom: Simplest, limited to plain weave; additional techniques like grouped/spaced warps or thicker/thinner yarns enhance variety.
- Table Loom: Up to 60cm wide, 2-16 shafts. Each shaft has a lever for manual operation, inserting weft. Suitable for samples and small items (cushion covers, scarves).
- Floor Loom (Treadle Loom): Faster than table looms. Peddles control shaft lifting, allowing simultaneous movement. Pedals connect via lams/marches to the shafts—the number of lams matches shafts, allowing evenly raised shafts, excluding counterbalanced looms.
- Counterbalanced Loom: Limited to 4 shafts. Shafts suspended by cords connected to frame pulleys for simultaneous lift.
- Dobby Loom: Faster for structures using 16+ shafts and frequent pattern changes; a single pedal operates a series of pegs to manually control lifting.
- Computerized Loom: Operated by a computer to control shaft positions. Drafter/weave structures input via software; allows quick pattern changes.
- Jacquard Loom: Intricate patterns; uses individual heddles controlled by a machine to vary thread lifting, initially using punched cards, now largely computer-controlled.
Making a Warp and Dressing the Loom
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Selecting Warp Yarn: Strong enough to handle loom tensions, usually equal to or finer than weft yarns.
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Calculating Warp Yarns: Length = cloth length + 1 yard waste; Width determined. Warp ends per inch calculated and multiplied by cloth width for total warp ends required
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Making the Warp: A warping frame/mill winds the yarn at tension onto the warping beam. Marking with contrasting color threads helps identify each end. Warp yarns are tied to form a chain or loop for simpler handling.
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Dressing the Loom (Steps):
- Secure the warp using back sticks tied to the cross sections.
- Secure the raddle (mechanism for arranging warp threads), with warp threads placed into the dented section.
- Attach the back stick to the loom's back beam, allowing the warp threads to be wound evenly. Attach the warp to the back beam.
- Wind the warp onto the back beam, using flat sticks/paper to maintain even spacing. Leave some warp (around 18 inches) unwound, forming the front cross.
- Secure the front cross using cross-sticks.
- Thread the heddles onto the shafts, following a draft, in a specific order.
- Sley or place the warp threads into the reed—the order should follow the heddle threading (draft)
- Tie the warp on to the front beam, ensuring even tension
Designing for Woven Fabrics
- Planning & Documentation: Critical to reproducing woven fabrics – meticulously document heddle threading, shaft lifting, and reed placement using point paper or software.
Weave Structures
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Basic Weaves: Plain, twill, satin. Building blocks; Modifications create more complex patterns.
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Balanced/Unbalanced Weaves: Balanced (equal warp/weft); Unbalanced (significantly uneven warp/weft). The ratio of warp to weft threads directly affects the weave's appearance and characteristics (e.g., strength, flexibility, etc.)
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Plain Weave: Simplest; warp and weft threads alternate over/under. Suitable for various effects—yarns of contrasting colors/textures can add visual appeal.
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Twill Weave: Diagonal pattern formed; warp/weft yarns float over several yarns, giving a distinct diagonal. Usually stronger, more durable than plain weave.
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Satin Weave: Weft yarns have long floats; warp yarns interlace at intervals, creating a smooth, often shiny face.
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Basket Weave: Two or more warp/weft yarns interlace simultaneously; creates a looser, more textured fabric.
Derivative Weaves
- Mock Leno: Open weave structure resembling lace; easier, quicker to weave than a true leno.
- Double Weave: Two layers of fabric interlaced; produces stronger, reversible or quilt-like finishes.
- Honeycomb Weave: Pointed draft; warp and weft float freely, creating a cell-like pattern.
- Jacquard Weaves (e.g., Damask, Brocade): Complex patterns using individual heddle control, often highly detailed.
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