Holland Finish

A glazed or unglazed finish containing oil and a filling material. The finish is applied to cotton fabrics to make them opaque or semiopaque. The resultant fabric resembles a beetled linen fabric called Holland fabric.

Hollow fibre

A tube-like manufactured fibre or filament.

Hollow filament

A tube-like manufactured fibre or filament.

Hollow Filament Fibers

Manufactured continuous filament fibers having voids created by introduction of air or other gas in the polymer solution or by melt spinning through specially designed spinnerets.

Hollow spindle spinning

A system of yarn formation in which the feedstock (sliver or roving), is drafted and the drafted twistless strand is wrapped with a yarn as it passes through a rotating hollow spindle. The binder or wrapping yam is mounted on the hollow spindle and is unwound and wrapped around the core by rotation of the spindle. The technique may used for producing a range of wrap-spun yarns or fancy yarns, by using different yam and fibre feedstocks fed to the hollow spindle at different speeds. (See also spinning.)

Homespun

Descriptive of coarse handwoven 2x2 twill-weave fabrics of tweed character. The yarns are handspun from domestic wools.

Homopolymer

A polymer in which the repeating units are all the sai-ne. (See also copolymer.)

Honan

A Chinese word meaning a silk fabric handwoven from water-reeled net Tussah silk, usually of medium weight.

Honeycomb

A fagric in which the warp and weft threads form ridges and hollows, which give a cellular appearance (see cellular fabric). Three types of weave produce this effect:
(i) ordinary honeycomb, which gives a marked cellular effect on the face and back of the cloth;
(ii) Brighton honeycomb, which develops the effect more prominently on the face but in a less regular manner and with large and small cells; and
(iii) Grecian.

Honeydew

The result of infestation of growing cotton by aphids or whitefly. It takes the form of more or less randomly distributed droplets of highly concentrated sugars, causing cotton stickiness.

Hood

Acid-milled cone-shaped felt used in hat manufacture.

Hook and loop fastener

Fasteners consisting of two opposed tapes which repeatedly can be closed by the application of pressure and pulled apart manually. The fastening mechanism may be formed by minute hooks on the surface of one tape which interlock with minute loops on the face of the second tape, or a loop tape locking with mushroom-shaped protuberances on the face of the other. Typically, fasteners are made of polyamide, polyester or polypropylene

Hook Reed

See REED.

Hopsack

A modification of plain weave in which two or more ends and picks weave as one, or a fabric made in such a weave. The basic hopsack weaves may be modified in various ways, e.g., by introducing additional interlacing to give firmer cloth (stitched hopsack), or by arranging small square blocks of figures to form diagonal lines in the fabric (twilled hopsack).

Hopsacking

A coarse open basket-weave fabric that gets its name from the plain-weave fabric of jute or hemp used for sacking in which hops are gathered.