Bastard reed

A reed in which the dent spacing at each side is slightly greater than in the centre.

Batch polymerization

A process for making polymer in batches.

Batchwise process

Processing of materials as lots or batches in which the whole of each batch is subjected to one stage of the process at a time. (See also continuous process.)

Bathrobe Blanketing

A double-faced fabric woven with a tightly twisted spun warp and two sets of soft spun filling yarns. The fabric is thick and warm and its filling yarns are frequently napped to produce a soft surface. Today’s blankets are made of spun polyester acrylic or polyester/cotton blends.

Batik

A resist-dyeing process in which portions of a fabric are coated with wax; during the dyeing process, only the uncovered areas take up dye. The process can be repeated so that several colors are used. Batik dyeing is often imitated in machine printing.

Batik dyeing

A method of producing characteristic designs on fabric using a wax or gum resist.
Note: By the traditional technique, the wax is applied in the form of a design by a brush or using a tool from which the wax is poured. The fabric is then dyed, the dye usually penetrating through cracks in the wax to give a characteristic veined effect. After dyeing, the wax is partially or wholly removed, and the process is repeated a number of times using different dyes. The batik style is mass-produced today using a printing technique and wax as a resist, with indigo, mordant and azoic dyes.

Batik printing

A method of producing characteristic designs on fabric using a wax or gum resist.
Note: By the traditional technique, the wax is applied in the form of a design by a brush or using a tool from which the wax is poured. The fabric is then dyed, the dye usually penetrating through cracks in the wax to give a characteristic veined effect. After dyeing, the wax is partially or wholly removed, and the process is repeated a number of times using different dyes. The batik style is mass-produced today using a printing technique and wax as a resist, with indigo, mordant and azoic dyes.

Batiste

A soft, fine, plain-woven fabric traditionally of flax but made in other fibres. A typical cotton construction is K=9.0-13.0+7.0-13.0, 100 g/m'.

Batt

Single or multiple sheets of fibre used in the production of nonwoven fabric.

Batten

1.A swinging frame that carries the cylinder of a jacquard machine.
2. The reciprocating part of a multi-space narrow fabric weaving machine which carries the shuttle-landings, shuttles and reeds.
3. See Note under sley 1.

Battery

The part of an automatic weaving machine that holds full bobbins or pirns of weft in vertical or circular housings, or holds shuttles in a vertical housing.

Batting

Single or multiple sheets of fibre used in the production of nonwoven fabric.

Baulk

That part of a reed, providing its lateral margins, that holds its wires or dents securely and at the desired sett.
Note 1: Pitch bound reeds are furnished with a baulk formed by twine secured by pitch. Most reeds have a cast metal baulk.
Note 2: Whereas a reed has two baulks a comb has one.

Baulk finish

A finish in which woollen material is lightly milled in the grease, scoured, dyed, tentered to width, and lightly pressed.

Baum'e,degrees

A scale used for measurement of the relative density (RD) of liquids by hydrometry. The following formula expresses the relationship between relative density and degrees Bitumd (Be)for liquids more dense than water:Be= 145 - 145/RD