Introduction
Soy
Protein Fiber (SPF) is the only protein fiber made from soybean cake. Their
physical properties are same as that of synthetic fiber. It gives tremendous
change in properties like smoothness/luster/comfort/absorbency/strength/shrinkage
when mix with other fibers. For example; when soybean fibers mix with
cashmere, it gives smooth quality with an enhancement of easy care
properties. As a wool/soy protein fiber, it reduces shrinkage and increases
ease of care. As a silk blend, it improves the properties of silk with the
prevention of the fabric from sticking to the skin when wet.
Inspite
of this, SPF is the only renewable botanic protein fiber. Its 16 amino acids
are healthy and nutritional to people's skin. This fiber basically comes from
soybean; plant massive in sourcing and rich in nutrition. It is a kind of an
active fiber shows the superiorities of many natural fibers and synthesized
one.
Processability/Pretreatment: SPF has different physical
& chemical construction from natural protein fiber. During the production
process we should select fit equipment and proper settings:-
b) Desizing: All textile materials (woven
fabric/knitting) require desizing which can further be processed by enzymatic
desizing, alkali or oxidative desizing. Mercerization is usually not
recommended as SPF is unable to bear the strong caustic soda.
b) Scouring & Bleaching: As we know, the purpose of
using scouring & bleaching is to remove oil, lubricants & pigments.
We may use hydrogen peroxide bleaching, reduction bleaching depending upon
color. The natural color of SPF is curcuma which is difficult to remove.
Hence use of bleaching is recommended for these fibers. In case of very light
colors, it is preferable to use whitening agents.
Synthesis
of soya fibers: SRF is an advanced textile fiber made from
Soybean cake after oiling followed by new bioengineering Technique.
· Firstly, protein is distilled
from soybean cake & refined.
· Secondly, Use auxiliary agent
& biological enzyme which make changes in the space structure of
spherical protein. After that, Protein spinning liquid is confected by adding
high polymers
· Thirdly, once the liquid is
cook, the 0.9-3 dtex fiber is produced by wet spinning which is further
stabilized by acetalizing & then finally cut into short staples after
curing and thermoforming.
Features: Fabrics from SPF have the
following features:
· Luster: SPF have the luster of silk
with excellent drape
· Comfort: It is soft, smooth & light
weight
· Absorbency: They have same moisture
absorption as cotton & better moisture transmission than cotton.
· Easy Dyeing: The original state of the
product has good dyeing penetration & colorfastness properties.
· Strength: They have higher breaking
strength than wool, cotton & silk but less than that of polyester
· Shrinkage: These fibers don’t shrink
under nfluence of boiling water
· Easy Care: These fibers are anti-crease,
easy wash & fast drying
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