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Analysis of the Correlation Between Crimp Parameters and its Effect on Yarn Strength and Hairiness Cover

Analysis of the Correlation Between Crimp Parameters and its Effect on Yarn Strength and Hairiness

Fibres & Textiles in Eastern Europe
Volume 30 (2022): Issue 2 (March 2022)
By: Shilpi Akter,  Mohammad Abdul Motalab and  Maksud Helali  
Open Access
|Jun 2022

Figures & Tables

Fig. 1

Idealised Geometry of Stuffer Box Crimped Fibre [9]
Idealised Geometry of Stuffer Box Crimped Fibre [9]

Fig. 2

Relation between number of crimps and crimp angle (φ)
Relation between number of crimps and crimp angle (φ)

Fig. 3

Relation between number of crimps and crimp length of fibre
Relation between number of crimps and crimp length of fibre

Fig. 4

Relation between number of crimps and yarn strength
Relation between number of crimps and yarn strength

Fig. 5

Width of one crimp bow and crimp angle for 3 crimps per unit length (2.54 cm)
Width of one crimp bow and crimp angle for 3 crimps per unit length (2.54 cm)

Fig. 6

Width of one crimp bow and crimp angle for 4 crimps per unit length (2.54 cm)
Width of one crimp bow and crimp angle for 4 crimps per unit length (2.54 cm)

Fig. 7

Width of one crimp bow and crimp angle for 5 crimps per unit length (2.54 cm)
Width of one crimp bow and crimp angle for 5 crimps per unit length (2.54 cm)

Fig. 8

Hairiness of yarns
Hairiness of yarns

Description of Figure 1

n = number of crimp waves per unit length of fibreL = n l = crimped length of fibre
φ = crimp angleλ = 2l = wave length of crimped fibre
lo = side length of one crimp bowA = crimp amplitude
Lo = 2n lo = extended length of fibreα = angle between crimp leg, fibre axis
l = width of one crimp bow

Parameters of a crimp for different numbers of crimps per unit length

Number of crimps per 2.54 cmWidth of one crimp bow l (mm)Crimp length of fibre L (mm)Crimp angle (φ)
38.8326.49145.03°
46.8727.48136.67°
55.6328.15126.16°

Correlation and regression between the number of crimps, crimp length and crimp angle

S.NRelation betweenCorrelation (r)Regression (p)
1.Number of crimps per unit length (2.54 cm) and crimp length of fibre (mm)r = 0.9976p = 0.0440
2.Number of crimps per unit length (2.54 cm) and crimp angle (φ)r = −0.9978p = 0.0418

Materials used in this research

Raw materialYarn count (Tex)Number of crimps per (2.54 cm)Yarn twist per 2.54 cm
100 % jute fibre21834.5
2584
3115

Breaking force, single yarn strength or tenacity and elongation percentage of yarns with different numbers of crimps per unit length

Breaking force (N)Yarn strength or tenacity (cN/Tex)Elongation %
3 crimps/2.54 cm4 crimps/2.54 cm5 crimps/2.54 cm3 crimps/2.54 cm4 crimps/2.54 cm5 crimps/2.54 cm3 crimps/2.54 cm4 crimps/2.54 cm5 crimps/2.54 cm
125.6732.5646.96119.60128.06153.501.391.511.97
226.2633.2445.32122.35130.74148.111.191.581.72
325.8931.9645.01120.49125.70147.131.491.711.87
424.9133.8746.59116.06133.22152.291.481.362.27
526.5832.0444.91123.46126.02146.801.681.412.47
Avg25.8632.7145.75120.46128.74149.561.441.512.06
DOI: https://doi.org/10.2478/ftee-2022-0007 | Journal eISSN: 2300-7354 | Journal ISSN: 1230-3666
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Language: English
Page range: 55 - 60
Published on: Jun 8, 2022
Published by: Łukasiewicz Research Network, Institute of Biopolymers and Chemical Fibres
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open
Keywords:
mechanical gear crimp,
correlation,
crimp length,
crimp angle,
yarn strength,
yarn hairiness
Related subjects:
Business and economics,
Business management,
Business informatics,
Process management,
Industrial chemistry,
Cellulose, paper and textiles,
Polymer science and technology,
Materials sciences,
Biomaterials and natural materials

© 2022 Shilpi Akter, Mohammad Abdul Motalab, Maksud Helali, published by Łukasiewicz Research Network, Institute of Biopolymers and Chemical Fibres
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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