Volume 02 Issue 11-2022
90
International Journal of Advance Scientific Research
(ISSN
–
2750-1396)
VOLUME
02
I
SSUE
11
Pages:
90-96
SJIF
I
MPACT
FACTOR
(2021:
5.478
)
(2022:
5.636
)
METADATA
IF
–
7.356
A
BSTRACT
This article discusses the characteristics of cotton knitted fabrics, their parameters and optimal options in
the production of women's outerwear.
K
EYWORDS
Knitwear, raw material, two-layer, physical-mechanical, volume density, fabric, surface, absolute
volumetric lightness, the base fabric
I
NTRODUCTION
Knitwear production in the world is highly
efficient and resource-efficient Scientific and
research work is being carried out aimed at the
development of new scientific and technical
solutions of technologies and technical means [1-
3]. In this regard, including the development of a
Journal
Website:
http://sciencebring.co
m/index.php/ijasr
Copyright:
Original
content from this work
may be used under the
terms of the creative
commons
attributes
4.0 licence.
Research Article
ANALYSIS OF THE PROPERTIES OF COTTON KNITTED
FABRICS FOR THE PRODUCTION OF WOMEN'S OUTERWEAR
CLOTHES
Submission Date:
November 05, 2022,
Accepted Date:
November 15, 2022,
Published Date:
November 30, 2022
Crossref doi:
https://doi.org/10.37547/ijasr-02-11-13
Shogafurov Shakhbozjon Shokirjon Ogli
Phd, Namangan Institute Of Engineering And Technology, Namangan, Uzbekistan
Oripov Jasurbek Ikromjon Ogli
Phd, Fergana Polytechnic Institute, Fergana, Uzbekistan
Abdusamatova Shokhista Abdurakhim Kizi
Master's Student, Fergana Polytechnic Institute, Fergana, Uzbekistan
Volume 02 Issue 11-2022
91
International Journal of Advance Scientific Research
(ISSN
–
2750-1396)
VOLUME
02
I
SSUE
11
Pages:
90-96
SJIF
I
MPACT
FACTOR
(2021:
5.478
)
(2022:
5.636
)
METADATA
IF
–
7.356
new range of knitted fabrics, researching their
technological
parameters,
physical
and
mechanical
properties
and
theoretical
justification of the laws of their change, and
developing
mathematical
models
special
attention is paid to scientific research works
aimed at creating output and forecasting
methodology, developing technological regimes
for the production of knitted fabrics from new
types of raw materials, improving existing
techniques and technologies for the purpose of
producing new knitted fabrics, expanding the
technological capabilities of machines, automatic
control of technological processes [4-9].
The main part
In our republic, comprehensive measures are
being taken to reduce labour and energy
consumption in the production of sewing and
knitting products, to produce finished products
with high added value based on deep processing
of local raw materials, to ensure the
competitiveness of national goods in domestic
and foreign markets, and certain results are being
achieved [8-11].
The Republic of Uzbekistan in 2017-2021 in the
action strategy of development, including
"...national increasing the competitiveness of the
economy, energy in the economy and reduce the
consumption of resources, save energy for
production defining important tasks for the wide
introduction of technologies"2 given In the
implementation of these tasks, including textile
and comprehensive analysis of the development
of the sewing and knitting industry, the volatility
of the world market in the context of increased
competition in the field support from the state, as
well as more stable and rapid development of
development mechanisms and technical and
technological It is important to create
modernized machines is doing.
of the President of the Republic of Uzbekistan on
February 7, 2017, No. PF-4947 "The Republic of
Uzbekistan in 2017-2021 Decree No. 2 "On the
Action Strategy for Five Priority Areas of
Development", Decree No. PF-5989 of May 5,
2020 "On Urgent Measures to Support the Textile
and Garment Industry" and "Encouragement of
Further Development of Light Industry and
Production of Finished Products" on measures" of
September 16, 2019 PQ-4453 and other
regulatory legal documents related to this
activity, it will be necessary to implement the
tasks [12-15]. Therefore, in the production of
women's outer cotton knitwear, expanding the
assortment of ricotta fabrics and SM 252 of Long
Xing to make maximum use of the technological
capabilities of class 12 flat needle machine, the
technology of creating and obtaining knitted
fabric was created. 2 sample options were
developed using polyacrylonitrile yarn with a
linear density of 35 tex x 2 for the patterned knit
fabric. In the 1st knitting sample, rhombic
knitting patterns were developed as a result of
bending the loops to the right and left with the
help of pliers. In the 2nd option knitting sample,
the cross-shaped pattern of the cross-shaped
columns was achieved due to the orientation of
the columns to the right and left. In these 2 knitted
samples, by changing the transverse and
Volume 02 Issue 11-2022
92
International Journal of Advance Scientific Research
(ISSN
–
2750-1396)
VOLUME
02
I
SSUE
11
Pages:
90-96
SJIF
I
MPACT
FACTOR
(2021:
5.478
)
(2022:
5.636
)
METADATA
IF
–
7.356
longitudinal knitting yarns, a positive change in
the shape retention properties of the fabrics was
achieved. The technological indicators of knitted
fabrics are determined according to the standard
style,
Option I
Option II
Figure 1. Graphic notation and construction of knitted fabrics
The surface density of the fabric is traditionally
considered a criterion of raw material
consumption. It is known that reducing the
surface density of knitted fabric leads to changes
in operational and hygienic properties. Therefore,
an indicator describing the consumption of raw
materials and the quality of the fabric is included
at the same time. Lightweight knitted fabric
structure belongs to the type of indicators, in
which the thickness of the fabric is taken into
account, as well as the surface density. Volumetric
density can be used as an indicator of lightweight
knitted structure (1).
тр
т
М
=
(1)
here:
–
volumetric density of knitting, mg/cm
3
;
Volume 02 Issue 11-2022
93
International Journal of Advance Scientific Research
(ISSN
–
2750-1396)
VOLUME
02
I
SSUE
11
Pages:
90-96
SJIF
I
MPACT
FACTOR
(2021:
5.478
)
(2022:
5.636
)
METADATA
IF
–
7.356
тр
т
–
surface density of knitting, g/m
2
;
M- knitting thickness, mm.
Based on the results of the analysis, technical indicators such as ring pitch, ring row height, density in
horizontal and vertical directions, and length of ring string are determined.
Table 1. Analysis of patterned knitted fabrics
Indicators
Options
I
II
Yarn type, linear density and % amount in
the fabric
Polyacrylonitrile
35tex x2
Ring pitch A (mm)
1.72
1.87
Ring row height V (mm)
1.47
1.69
Horizontal density Rg (number of rings)
29
23
Vertical density Rv (number of rings)
34
29
Loop thread length L (mm)
4.7
5.1
Knitted surface density Ms (gr/m
2
)
171.5
162
Knitting thickness, T(mm)
1.85
1.48
Bulk density d (mg/cm
3
)
93
109.5
Surface density Ms=93g/m
2
, thickness T=1.85 mm, the option I of patterned knitted fabric, volume density
93mg/s equal to m
3
, Ms = 109.5 g/m
2
surface density and T = 1.48 mm thickness, the volume density of
option II is 109.5 mg/s was m
3
.
Absolute volumetric lightness, when compared to the base fabric, consists of:
3
109,5 – 93 16,5
/
б
Dd
d
d
мг cм
=
− =
=
(2)
here:
-
absolute volume density, mg/cm
3
;
b
- volume density of base tissue mg/cm
3
;
- bulk density of experimental tissue mg/cm
3
.
Indicators of relative lightness include:
Volume 02 Issue 11-2022
94
International Journal of Advance Scientific Research
(ISSN
–
2750-1396)
VOLUME
02
I
SSUE
11
Pages:
90-96
SJIF
I
MPACT
FACTOR
(2021:
5.478
)
(2022:
5.636
)
METADATA
IF
–
7.356
(
)
(
)
1
/
100
1
93 / 109, 5
100 1 %
(
(
)
5
)
б
q
d d
х
х
= −
= −
=
(3)
Figure 2. Change in volume density of patterned knitted fabric
The volume density of knitwear is one of the main
technological indicators, and it shows the
consumption of raw materials in knitwear.
As the surface density of the knitted fabric
changes, its thickness and other physical and
mechanical properties change.
The bulk density of the knitted fabric varies
considerably, depending on the type and
thickness of the warp yarn used, the density of the
knitting and the type of fabric and the class of the
machine. The consumption of raw materials is
reduced due to the change in the fabric structure
of the proposed knitted fabric. The loop pitch has
changed due to the change of the pattern ratio in
the II variants of patterned knitted fabrics
compared to the I variant. An increase in the
density of knitting leads to an increase in its
surface density and thickness.
The surface density of option II is reduced by
5.5% compared to the option I of two-layer
knitting. The thickness of the two-layer knitwear
changes as follows when the pattern ratio
changes: compared to the I option, the thickness
of the II option is 7% more.
To find out the consumption of raw materials of
knitting, we analyze its volume density. Since the
change in the surface density in the II variants of
the patterned knitting is less than the increase in
their thickness, the volume density of these
variants was greater compared to the I variant of
the knitting. Therefore, the volume density of the
second version of the knitted fabric is 15% higher
than that of the first version. This means that the
consumption of raw materials in the production
of the second option of knitted fabric is 15% less
than that of the first option.
C
ONCLUSION
Thus, it is possible to reduce the consumption of
raw materials, improve the quality indicators,
increase shape retention and expand the
assortment of knitted fabrics due to the
calculation of changing the shear ratio of two-
layer knitting, the production of two-layer knitted
I=93
mg/cm
3
II=109,5
mg/cm
3
Volume 02 Issue 11-2022
95
International Journal of Advance Scientific Research
(ISSN
–
2750-1396)
VOLUME
02
I
SSUE
11
Pages:
90-96
SJIF
I
MPACT
FACTOR
(2021:
5.478
)
(2022:
5.636
)
METADATA
IF
–
7.356
fabric with different structures, and the use of the
base thread in the joining of knitted layers.
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Volume 02 Issue 11-2022
96
International Journal of Advance Scientific Research
(ISSN
–
2750-1396)
VOLUME
02
I
SSUE
11
Pages:
90-96
SJIF
I
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FACTOR
(2021:
5.478
)
(2022:
5.636
)
METADATA
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7.356
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