Podcast
Questions and Answers
What is the main purpose of the reed in the weaving process?
What is the main purpose of the reed in the weaving process?
- To determine the type of weave design
- To perform the primary motion of beating-up (correct)
- To increase the number of heald frames
- To increase the gap between warp yarns
What does the count of the reed refer to?
What does the count of the reed refer to?
- The total length of the warp yarns used
- The number of dents in a unit width of the reed (correct)
- The number of heald frames in a loom
- The thickness of the warp threads
What is the total number of ends in the given reed setup?
What is the total number of ends in the given reed setup?
- 72 (correct)
- 36
- 4
- 18
What system is most commonly used to measure reed count?
What system is most commonly used to measure reed count?
How many dents are required to achieve 72 ends using a reed plan of 2 ends per dent?
How many dents are required to achieve 72 ends using a reed plan of 2 ends per dent?
How does the reed help maintain the configuration of warp yarns?
How does the reed help maintain the configuration of warp yarns?
What would be the stockport reed count needed for 56 ends per inch and a reed plan of 2 ends per dent?
What would be the stockport reed count needed for 56 ends per inch and a reed plan of 2 ends per dent?
If the reed count is 72 Stockport, what is the relationship between ends, dents, and ends per dent?
If the reed count is 72 Stockport, what is the relationship between ends, dents, and ends per dent?
Which of the following statements about the reed is incorrect?
Which of the following statements about the reed is incorrect?
Which function is NOT performed by the reed?
Which function is NOT performed by the reed?
How is the average warp thread density calculated in this context?
How is the average warp thread density calculated in this context?
What are the two systems of reed counting based on?
What are the two systems of reed counting based on?
If a reed plan changes to 4 ends per dent, how many dens would be needed for 72 ends?
If a reed plan changes to 4 ends per dent, how many dens would be needed for 72 ends?
Which part of the reed helps create the gap for warp yarns?
Which part of the reed helps create the gap for warp yarns?
What would be the corrected stockport reed count if 36 dents were used at 2 ends per dent?
What would be the corrected stockport reed count if 36 dents were used at 2 ends per dent?
Which of the following equations reflects the relationship between ends, dents, and reed count correctly?
Which of the following equations reflects the relationship between ends, dents, and reed count correctly?
What is the formula used to convert between different reed counts?
What is the formula used to convert between different reed counts?
If the known system is 20 Irish reed count, what is the required Stockport reed count when converting?
If the known system is 20 Irish reed count, what is the required Stockport reed count when converting?
When converting from 72 Stockport reed count to Radcliff, what is the required count?
When converting from 72 Stockport reed count to Radcliff, what is the required count?
For which reed count is the conversion to Leeds not provided?
For which reed count is the conversion to Leeds not provided?
What does the variable 'Dents of known system' represent in the formula?
What does the variable 'Dents of known system' represent in the formula?
In the formula, what is the purpose of 'Dents of unknown system'?
In the formula, what is the purpose of 'Dents of unknown system'?
In the context of Reed Count Conversion, what does 'Dents per inch' refer to?
In the context of Reed Count Conversion, what does 'Dents per inch' refer to?
Which of the following conversions would yield the largest required count?
Which of the following conversions would yield the largest required count?
What does the reed plan (RP) refer to in fabric technology?
What does the reed plan (RP) refer to in fabric technology?
Which type of reed plan uses the same number of ends per dent throughout the width of the fabric?
Which type of reed plan uses the same number of ends per dent throughout the width of the fabric?
How is the warp thread density of a woven fabric controlled?
How is the warp thread density of a woven fabric controlled?
If the count of the known system is 100 and the required count is calculated using a dent of 0.444 inches for an unknown system with 19 dents at 2.11 inches, what will the required count be?
If the count of the known system is 100 and the required count is calculated using a dent of 0.444 inches for an unknown system with 19 dents at 2.11 inches, what will the required count be?
What parameter is NOT mentioned as a method for controlling warp thread density?
What parameter is NOT mentioned as a method for controlling warp thread density?
Which of the following terms is synonymous with reed plan?
Which of the following terms is synonymous with reed plan?
What defines an irregular reed plan?
What defines an irregular reed plan?
What is an incorrect statement about reed plans?
What is an incorrect statement about reed plans?
What is the calculated number of ends if the reed count is 72 and the total ends in reed plan is 24?
What is the calculated number of ends if the reed count is 72 and the total ends in reed plan is 24?
If the reed count is 30 dents/inch and total dents in reed plan is 13, what is the average warp thread density?
If the reed count is 30 dents/inch and total dents in reed plan is 13, what is the average warp thread density?
How are the operators positioned during manual drawing-in?
How are the operators positioned during manual drawing-in?
What type of process is described as being carried out automatically using special machines?
What type of process is described as being carried out automatically using special machines?
Which of the following values represents the total dents in the reed plan when the reed count is 30 dents/inch?
Which of the following values represents the total dents in the reed plan when the reed count is 30 dents/inch?
What is the result of multiplying 30 by 1.384 in the context of warp thread density?
What is the result of multiplying 30 by 1.384 in the context of warp thread density?
Which of the following is NOT a method of drawing-in?
Which of the following is NOT a method of drawing-in?
What is the value of total ends based on the formula Ends = Dents x Ends per dent for a reed count of 72 with 54 ends?
What is the value of total ends based on the formula Ends = Dents x Ends per dent for a reed count of 72 with 54 ends?
Study Notes
Drawing-in Draft
- Obtained from specific weave designs
- Displays required number of heald frames for weaving
Reed
- Essential component of the loom, made of wood or plastic
- Comprises vertical steel wires spaced consistently
- Gap between two consecutive wires referred to as a dent
- Warp yarns pass through each dent, affecting warp thread density
- Main function: beating-up, pushing the weft yarn into place
- Additional functions include:
- Controlling warp thread density
- Keeping warp yarns straight and parallel
Reed Count
- Indicates number of dents per unit width of the reed
- Dependent on required warp thread density
- Most common is the Stockport reed counting system:
- Defined as the number of dents per two inches of reed
- Two methods for reed counting:
- Grouping of dents in a defined space
- Total count of dents in a defined space
Reed Count Conversion
- Conversion formula connects different reed counting systems:
- Required Count = (Dents of known system/inch) x Count of known system / (Dents of unknown system/inch)
- Examples illustrate conversions between Irish, Stockport, Radcliff, Blackburn, and Leeds reed counts.
Reed Plan (RP)
- Defined as the number of ends passing through each dent of a reed
- Also known as ends per dent, denting order, or reed filling
- Alters warp thread density by adjusting reed count and reed plan
- Types of reed plans:
- Regular: Same number of ends per dent across fabric width
- Irregular: Varying ends per dent across fabric width
Controlling Warp Thread Density
- Managed on the loom through:
- Reed count
- Reed plan (denting order)
Example Calculations
- Various examples provided for calculating:
- Warp thread density from reed plan and reed count
- Determining required reed counts for desired ends per inch
- Average warp thread density based on total ends and dents in reed plans
Types of Drawing-in Process
- Two methods for drawing-in:
- Manual: Two operators manage the process
- Automatic: Uses specialized machines for efficiency
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Description
This quiz focuses on the basics of weaving, including the drawing-in draft and the role of the reed in loom mechanics. You'll learn about the structure and function of the reed, as well as how specific weave designs are formed through heald frames. Test your knowledge of essential weaving concepts.
