This standard specifies the official moisture regain of major textile materials. This standard applies to the calculation of linear density and commercial weight of textile materials. GB 9994-1988 Conventional moisture regain of textile materials GB9994-1988 Standard download and decompression password: www.bzxz.net

National Standard of the People's Republic of China
Normal moisture regain rate of textile materials
Commercial misture regains of textiles subject content and applicable scope
This standard specifies the official moisture regain rate of major textile materials. This standard applies to the calculation of linear density and commercial weight of textile materials. UDC 677. 03
GB 9994-88
Note: The word "weight" appearing in this standard should be understood as mass. This is only in the current transitional stage due to customary needs. use. 2 Reference standards
GB3291 Textile terminology (general part of textile materials and textile products) 3 Terminology
Textile materials: the collective name for textile raw materials, textile semi-finished products and finished products that are used to process textiles. Including various fibers, slivers, yarns, fabrics, etc. (see GB3291 Article 1.1.1). Official moisture regain rate: The moisture regain rate specified for textile materials and textiles for inspection, trade and other needs (see GB3291 Article 2.2.1.11). Commercial weight: The weight of textile materials settled at the time of delivery, commercial weight three dry weight (10 official moisture regain) The official moisture regain rate of textile materials
A
The official moisture regain rate of textile materials is as follows: | |tt||The Ministry of Textile Industry of the People's Republic of China approved G48 on 1988-11-30
(1)
Implemented on 1989-07-01
Raw material category
Cotton| |tt||wool
linen 4)
silk 5)
chemical fiber)
cotton
cotton yarn\》
cotton sewing Thread 1》
cotton fabric 2)
wool
spun
washed wool 3 (heterogeneous wool)
washed wool 3 (homogeneous Wool)
combed woolbzxz.net
regenerated hair
on top
oil top
worsted wool yarn
woolen wool yarn||tt ||GB 9994-—88
Weaving
Materials
Materials
Wool fabrics (worsted, woolen, camel hair, industrial wool, industrial felt) yarn, knitted yarn
Plush fabric
Cashmere
Carded cashmere
Cashmere yarn
Free hair
Camel hair
Cow hair consumption
heart
hemp
ye
hemp
yellow
hemp
big
hemp|| tt||Apocynum
sisal
mulberry silk
vertebral silk
viscose fiber
rich fiber
acetate fiber|| tt||Copper ammonia fiber
nylon fiber
6,66.11
polyester fiber
acrylic fiber
vinyl fiber
polypropylene fiber| | tt | |8.5
8.5
8.5
8.0
15.0
16.0
16.0
17.0
18.25
19.0
16.0
15.0
14.0
15.0
16.0
17.0
15.0|| tt||15.0
15.0
15.0
12.0
12.0
14.0
12.0
12.0||tt| |12.0
11.0
11.0
13.0
13.0
7.0
13.0
4.5
0 . 4
2.0
5.0
0
心
0
1.3
0
Note : 1) Cotton yarn and cotton sewing thread include natural, mercerized, waxed, dyed and other varieties. 2) Cotton fabrics include woven, knitted natural, mercerized, dyed and other cotton fabrics and their products, but do not include specially finished cotton fabrics. 3) Washed wool contains carbonized wool.
4) Both hemp and chemical fiber contain fibers and natural and dyed yarns and fabrics. 5) Silk can be used in various fabrics such as double palace silk, spun silk, fairy silk and natural color, bleached, printed and dyed fabrics. 649
Normal moisture regain of blended yarn
GB 9994-88
The official moisture regain of blended yarn is calculated based on the weighted average of the official moisture regain of blended raw materials and the blending ratio. to two decimal places, and round to one decimal place according to the numerical rounding rules. The two calculation methods of the conventional moisture regain of blended yarn are as follows: Calculate the conventional moisture regain based on the dry weight blending ratio: Reason.
AR, + A2R2 +
.....A,R.
R=
100
b.
Formula Medium:
Calculate the public moisture regain based on the public weight blending ratio: BiR
1+
R
R
Al.A2*.... *A.
R
100
B
1+
Ri
100
-Blended yarn common formula Moisture regain, %;
+
+
Dry weight blending ratio of blended raw materials;
B2R2
1+
R2| |tt||100
B2
R
1+
100
B1, B2--... B. ----| |tt||The common weight blending ratio of blended raw materials; R+.R...R.
The common moisture regain of blended raw materials, %.
B,R.
1+
R
100
B
+
R.||tt ||100
Note: The public moisture regain of blended yarn is generally calculated based on the public weight blending ratio. If it needs to be calculated by dry weight, it should be stipulated in the product standard. 650
**(2)
.(3)
GB9994-88
Appendix A
Wool and viscose fibers in domestic market sales of yarn The official moisture regain
one rate
(supplement)
A1 In order to ensure the weighing weight of domestically sold wool yarn, the official moisture regain of wool and viscose fiber in domestic market sold wool yarn is The rate is stipulated as: Sheep | Converted weight based on the public moisture regain specified in Chapter 4 of the standard. A2
Additional Note:
This standard is under the jurisdiction of the Standardization Research Institute of the Ministry of Textile. This standard is drafted by the Shanghai Institute of Textile Standards and Metrology, and is drafted in collaboration with the Shanghai Textile Fiber Inspection Institute. 651
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