Textile Institute of Pakistan

Questions and Answers

What does the heald count represent in weaving?

The speed of the weaving process

The total number of loom frames used

The number of heald wires per inch (correct)

The width of the fabric produced

Why is the heald count important in weaving?

It determines the color of the fabric

It influences the number of patterns that can be woven

It ensures correct functionality of the loom (correct)

It affects the strength of the fabric

How is the heald count sourced in weaving?

From the drawing-in draft (DID) of the weave design (correct)

From the manufacturer's specifications

From the type of yarn used

From the fabric production rate

What does the lifting order in a weave design dictate?

The sequence in which heald wires are lifted Signup and view all the answers

Which of the following is NOT related to the heald count?

Weaving speed Signup and view all the answers

What role does the drawing-in draft (DID) play in the construction of weave designs?

It provides the plan for heald count and lifting order Signup and view all the answers

What does the drawing-in draft (DID) indicate in fabric construction?

The order of passing warp yarns through heald frames Signup and view all the answers

How many types of drafts are mentioned in the provided content?

Four types Signup and view all the answers

Which of the following is a requirement for constructing the lifting order (LO)?

The number of rows must equal the number of rows of the weave design Signup and view all the answers

What is the correct definition of lifting order (LO)?

The order of lifting of heald frames on every pick Signup and view all the answers

Which draft type involves alternating heald frame movements?

Mixed or staggered draft Signup and view all the answers

What is a primary function of the drawing-in draft?

To indicate how many frames are necessary Signup and view all the answers

Which of the following best describes a straight draft?

Frames lifted in the same sequence every row Signup and view all the answers

What is typically constructed from the weave design and its drawing-in draft?

Lifting order (LO) Signup and view all the answers

What defines a regular reed plan in fabric technology?

Equal number of ends per dent throughout the fabric width Signup and view all the answers

Which of the following statements is true regarding irregular reed plans?

They allow for variations in ends per dent across the fabric width. Signup and view all the answers

How are the weave design, draft, and lifting order related?

All three are interconnected and can influence one another. Signup and view all the answers

What can be modified to construct a weave design from a given lifting order?

The denting order or DID Signup and view all the answers

What is another term for the reed plan?

Denting order Signup and view all the answers

Which statement accurately describes how a weave design can be constructed?

From a given DID by changing the lifting order Signup and view all the answers

What does the term 'ends per dent' refer to?

The number of ends passing through each dent of the reed Signup and view all the answers

What is the implication of a lifting order on the construction of a weave design?

It can dictate the final appearance of the fabric. Signup and view all the answers

What is the total number of ends calculated from the given dimensions?

3600 Signup and view all the answers

What is the total heald count across all frames?

60 Signup and view all the answers

How many heald wires are used in Frame 3?

1080 Signup and view all the answers

Which frame has the highest number of heald wires?

Frame 3 Signup and view all the answers

If the ends per inch were to double, what would be the new total number of ends?

7200 Signup and view all the answers

What is the heald count for Frame 4?

18 Signup and view all the answers

What defines a weave design in woven fabric?

The order of interlacement of warp and weft Signup and view all the answers

Which of the following represents the simplest form of weave?

Plain weave Signup and view all the answers

What is the term used to describe a basic repeating unit of a woven fabric?

Repeat Signup and view all the answers

In a graphical representation of a weave design, what do the filled boxes indicate?

The warp is over the weft Signup and view all the answers

What are the three elements that can be identified from any weave design?

Drawing-in draft, lifting order, reed plan Signup and view all the answers

Why might it be beneficial to show more than one repeat of a weave design?

To clearly see the effect of the weave design Signup and view all the answers

How are the vertical columns depicted in the graphical representation of weave design?

Representing ends Signup and view all the answers

What is the purpose of the lifting order (LO) in a weave design?

To control the interlacement process on the loom Signup and view all the answers

Study Notes

Weave Design Overview

Weave design refers to the order of interlacement of warp and weft in woven fabric.
Plain weave is the simplest weave structure.
Unlimited woven fabric structures can be created by altering interlacement patterns.

Graphical Representation

Weave designs are represented on graph paper divided into 8 x 8 boxes.
Vertical columns indicate warp (ends), while horizontal rows denote weft (picks).
Filled boxes indicate warp is over the weft; empty boxes indicate warp is under the weft.

Weave Design Repeat

The basic repeat of a weave design is a fundamental unit repeated to create the finished fabric.
More repeats may be displayed to illustrate the weave effect clearly.

Elements of Weave Design

Key elements include:
- Drawing-in draft (DID)
- Lifting order (LO)
- Reed plan (RP)
These elements are essential for executing a specific weave design on a loom.

Drawing-in Draft (DID)

Represents the sequence of passing warp yarns through heald frames.
Derived from the weave design, indicating the number of required heald frames.

Types of Draft

Four types exist:
- Plain draft
- Straight draft
- Pointed draft
- Mixed or staggered draft

Lifting Order (LO)

Describes the order in which heald frames are lifted for each pick.
Must match the number of rows in the weave design and the number of frames shown in the drawing-in draft.

Reed Plan (RP)

Indicates the number of warp ends passing through each reed dent.
Two types:
- Regular reed plan: Same ends per dent throughout fabric width.
- Irregular reed plan: Varying ends per dent across the width.

Interconnection of Weave Elements

Weave design, DID, and lifting order are interrelated; one can be constructed from the other by modifying the others.
Modifications can be made to either the drawing-in draft or the lifting order to derive new weave designs.

Heald Count and Heald Wires Calculation

Heald count is the number of heald wires or heald eyes per inch.
Importance of accurate heald count and wires within weaving frames.
Example: For a fabric width of 60 inches and 60 ends per inch, total ends are 3600.
Heald wires and counts calculated per frame based on specific formulas.

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Description

Explore the basics of weave designs in this quiz from the Fabric Technology course at the Textile Institute of Pakistan. Understand the interlacement of warp and weft, and discover the significance of weave design in creating various fabric structures. Test your knowledge of plain weave and other fundamental concepts.

Textile Institute of Pakistan - Weave Designs