All Flashcards
Is there a diff in how many points of light can be seen through the greige, mechanically finished, and colored fabric?
Yes, the greige fabric allows more light to go through the fabric.
Brushed Fabrics
have a raised fiber surface, similar to napped, density of surface fibers is lower than napped, the yarns have a average twist. Also, more fuzzier than napped
Napped Fabrics
relatively thick layer of fibers protruding from their surfaces, and the yarns have a lower twist so it would be easier to pull out the fibers from the yarns in the fabric.
Components of a Fabric
- Fiber Composition
- Yarn construction
- Chemicals and finishes
- Fabric Construction
- Interstices
- Colorants
- Contaminants
Perfomance categories
- durability
- comfort
- aesthetic appeal
- maintenance
- health/safety/protection
Def of property as it pertains to fabric
how the fabric responds to the environment
relationship between a fabrics unique combination of components and its properties?
the fabric components will determine the different outcome of the fabric, placing it a unique fabric property and give it a unique performance.
does the residue obtained when thermoplastic fibers are removed from the flame reflect the characteristic described in the definition of the thermoplastic fibers?
yes, most of the residues are hard black lumps/beads as opposed to ash since they melted in the flame. and when they were cooled they hardened.
what reaction to open flame distinguishes the cellulose fibers from thermoplastic?
the cellulose fibers burn rapidly with afterglow and soft residue and the thermoplastic fibers fuse and shrink away with no afterglow and a hard residue.
Why isnt the burning test not suitable for positively identifying the generic names of unlabeled fibers?
It is only suitable to identify the generic groups (cellulose and thermoplastic) because the fibers in each group share similar reactions to flame and would be difficult to differentiate.
Major yarn types
spun, filament, compound, fancy
Spun
staple fibers held together by some binding mechanism, ring-spun, open-end, and air jet.
Filament
composed of single filaments or multiple filaments. continuous filaments assembled with or without twists. Flat, bulk, or stretch yarns
Compound
composed of two or more strands, one forming the center, or core, and the other forming the wrap or covering. covered or core-spun yarns.
Fancy
Differ significantly from the normal appearance of single or plied yarns die to the presence of irregularities deliberately produced during their formation. could be spiral, corkscrew, gimp, slub, ratine, boucle, thick-and-thin, chenille, loop, snarl, nub, metallic (laminated).
Cotton Count
The number of 840-yard lengths of yarn per pound. The smaller the number the larger the diameter
Worsted Count
The number of 560-yard lengths of yarn per pound . The bigger the number the larger the diameter
Tex
The number of grams per one kilometer lengths of yarn. 1 tex= 1 kilometer
Denier
The number of grams per 9000 meter lengths of yarn. 1 denier = 9000 grams
1 tex = 9 denier
Decitex
The number of 10 kilometers lengths of yarn weigh one gram. 1 tex = 10 decitex
4 Basic fabric construction
- Woven
- Knit
- Non woven
- Compound
Woven
Have two or more sets of yarns interlaced at right angles to each other.
Knit
composed of intermeshing loops of yarn
Non Woven
composed of webs (batts) of fibers that are entangled or layered
Compound Fabrics
composed of two or more layers of fabric or another component held together by stitching, fusing, adhesive bonding
Plain Woven
Max number of interlacing.
No technical face or back due to weave (interesting effects with novelty yarns).
Balanced Plain Woven
Same number of warp and weft yarns per inch, all the yarns about the same size, same face and back.
Unbalanced Plain Woven
Different number of warp and weft yarns.
Regular(same size warp and weft) or Prominent (diff size)
Basket Fabrics
Two or more yarns in warp or weft or both in one shed or forms of shed.
Types of basket
Full (basket in both directions)
Half (basket in warp or weft)
Twill Fabrics
Each warp or filling yarn floats across two or more filling or warp yarns with a progression of interlacing by one to the left or right to form a distinct line.
Forms a distinct diagonal line.
Reg (45) Reclining (15-27) steep (63-75*).
ex. jeans
Satin Fabrics
Glossy surface and dull back because it has minimum number of interlacing in a fabric.
‘Satin” filaments
“Sateen” short-staple fibers
