29 Questions
What is the temperature in degrees Celsius for steaming in the sizing production process?
90°C
What is the unit of time for the variable 'th' in the production calculation formula?
Hours
What is the symbol used to represent the number of ends of a weaver's beam in the production calculation formula?
ES
What is the formula to calculate the actual production in yards?
Sizing Rate(yds/min) x 60 x th x Eff.
What is the unit of measurement for the actual production calculated using the formula?
Yards
What is the primary purpose of using softening agents in the sizing process?
To make the yarn extensible and flexible
Which of the following is NOT a type of softener or lubricant used in the sizing process?
Starch thinning agents
What is the purpose of humectants in the sizing process?
To maintain minimum moisture in the sized warp sheet
What is an important quality of sizing materials?
They should give the fewest yarn breakages during weaving
What is the purpose of defoamers in the sizing process?
To restrict the formation of foam in the sizing solution
What varies from machine to machine in the sizing process?
The composition of sizing materials
What is the primary function of dropper wires in a loom?
To stop the loom when a warp yarn breaks
What material are dropper wires typically made of?
Steel, aluminum, or copper
What is the purpose of heald frames in a loom?
To create a shed in the warp yarns
What is obtained from a particular weave design?
Drawing-in draft
What does a drawing-in draft show?
The number of heald frames required
What shedding mechanism does not use heald frames?
Jacquard shedding mechanism
What is the total number of ends in the fabric?
3600
How many heald wires are in Frame 1?
720
What is the weft supply package used in shuttle-less looms?
Cone
What is the special winding process used for pirns?
Pirn winding
What is the total heald count in all frames?
60 x 12
What is the purpose of pirn winding?
To prepare weft yarn for shuttle looms
What is the term for the order of passing the warp yarns through different heald frames?
Drawing-in Draft
What is the purpose of the drawing-in draft?
To show the number of heald frames required
How many types of drafts are mentioned in the text?
4
What is the lifting order constructed from?
Both the weave design and its drawing-in draft
What is the rule for the number of rows in the lifting order?
It must be equal to the number of rows in the weave design
What is the term for the order of lifting of heald frames on every pick?
Lifting Order
Learn about the role of softeners and lubricants in the textile sizing process. Discover the different types of softeners used, including oils, fats, glycerin, soaps, and Japan wax. Explore how they make yarn extensible and flexible.
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