Question 12 (Textile Engineering & Fibre Science)
Size add-on does not depend on
| (A) | Roller hardness |
| (B) | Drying cylinder temperature |
| (C) | Size paste concentration |
| (D) | Machine speed |
Answer / Solution
[Show Answer]
Option B
Frequently Asked Questions | FAQs
What is size pick up and size add on?
Size pick up and size add-on are important terms in the textile industry related to the process of applying sizing (a solution of starch or synthetic polymer) to yarns or fabrics to improve their weaving or processing properties.
Size pick up refers to the amount of sizing that is absorbed by the yarn or fabric during the sizing process. It is typically expressed as a percentage of the weight of the yarn or fabric before sizing. The amount of size pick up depends on various factors such as the type of sizing solution used, the method of application, and the properties of the yarn or fabric.
Size add-on, on the other hand, refers to the weight of the sizing solution added to the yarn or fabric during the sizing process. It is expressed as a percentage of the weight of the yarn or fabric before sizing. Size add-on is typically calculated by measuring the weight of the yarn or fabric before and after sizing and then determining the difference.
Both size pick up and size add-on are important parameters that need to be carefully controlled during the sizing process to ensure consistent and optimal results. A high size pick up or size add-on can result in excess stiffness and weight in the finished product, while a low pick up or add-on can lead to insufficient lubrication and abrasion resistance during weaving. The optimal level of size pick up or size add-on will depend on the specific application and the properties of the yarn or fabric being sized.