Below are some useful terms and definitions used when working with heater pad materials:
British Standards - has a Royal Charter to act as the standards organisation for the UK. It is formally designated as the National Standards Body (NSB) for the UK.
Ends/Ins - Ends per inch of fabric.
Filling/Weft Yarn - The yarn which is shuttled back and forth across the warp to create a woven fabric. It can also be referred to as woof or fill.
Kevlar - A trademark name used for a type of aramid fiber.
Picks/Ins - Number of threads per inch.
Silicone - Any of a group of semi-inorganic polymers based on the structural unit R2SiO, where R is an organic group, characterized by wide-range thermal stability, high lubricity, extreme water repellence, and physiological inertness and used in adhesives, lubricants, protective coatings, paints, electrical insulation, synthetic rubber, and prosthetic replacements for body parts.
UL Listing - The UL stands for "Underwriters Laboratory". When something is UL-listed, that means that the UL has tested the device, and it meets their requirements.
Warp Yarn - Are the lengthwise threads attached to a loom before weaving begins.
Watts - An International System unit of power equal to one joule per second.
Woven Fabric - Material made or constructed by interlacing threads or strips of material or other elements into a whole.
Yarn Denier - A weight per-unit-length measure of any linear material. It is the number of unit weights of 0.05 grams per 450-meters of the material. Yarn denier is a direct numbering system in which the lower numbers represent the finer sizes and the higher numbers the courser sizes.
