HYDROENTANGLED NONWOVEN
A web bonded by hydroentanglement. It may additionally be bonded by other techniques. References for this information: Edana
HYDROENTANGLING
Method of bonding a web of fibers or filaments by entangling them by using high-pressure water jets. A preformed web is entangled by means of high pressure, columnar water jets.…
HVAC
The acronym applies to Heating, Ventilating and Air Conditioning systems that service air in an enclosed space, i.e., buildings, airplanes, cars, etc. References for this information: Inda
HOPPER
Structure used to contain material prior to being fed into the process i.e. polypropylene polymer chips prior to fiber spinning. References for this information: Edana
HOT-MELT ADHESIVE
A solid material that melts quickly upon heating, then sets to a firm bond upon cooling. Used for almost instantaneous bonding. References for this information: Inda Edana
HOMOPOLYMER
A polymer chain made up of monomeric units from one monomer only e.g. polyethylene.
HIGHLOFT
General term for low density, thick or bulky fabrics, as compared to flat, paper-like fabrics. References for this information: Textiles and Fashion Materials, Design and Technology, 2015, Pages 307-335 Inda
HEPA FILTER
The acronym for High Efficiency Particulate Air. These filters are designed for filtering gases, normally air, to an efficiency of 99.97% by trapping particles down to 0.3 microns in the…
HEAT STABILIZED
The ability of a fabric to resist shrinking or stretching under a mechanical or chemical stress. This property is obtained by prior heat treatment or with a chemical additive. References…