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

Shilpi Akter
Shilpi Akter
, 
Mohammad Abdul Motalab
Mohammad Abdul Motalab
 y 
Maksud Helali
Maksud Helali
   | 08 jun 2022
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Article Category: Research Article
Publicado en línea: 08 jun 2022
Páginas: 55 - 60
DOI: https://doi.org/10.2478/ftee-2022-0007
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© 2022 Shilpi Akter et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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 fibre L = n l = crimped length of fibre
φ = crimp angle λ = 2l = wave length of crimped fibre
lo = side length of one crimp bow A = crimp amplitude
Lo = 2n lo = extended length of fibre α = 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 cm Width of one crimp bow l (mm) Crimp length of fibre L (mm) Crimp angle (φ)
3 8.83 26.49 145.03°
4 6.87 27.48 136.67°
5 5.63 28.15 126.16°

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

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

Materials used in this research

Raw material Yarn count (Tex) Number of crimps per (2.54 cm) Yarn twist per 2.54 cm
100 % jute fibre 218 3 4.5
258 4
311 5

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 cm 4 crimps/2.54 cm 5 crimps/2.54 cm 3 crimps/2.54 cm 4 crimps/2.54 cm 5 crimps/2.54 cm 3 crimps/2.54 cm 4 crimps/2.54 cm 5 crimps/2.54 cm
1 25.67 32.56 46.96 119.60 128.06 153.50 1.39 1.51 1.97
2 26.26 33.24 45.32 122.35 130.74 148.11 1.19 1.58 1.72
3 25.89 31.96 45.01 120.49 125.70 147.13 1.49 1.71 1.87
4 24.91 33.87 46.59 116.06 133.22 152.29 1.48 1.36 2.27
5 26.58 32.04 44.91 123.46 126.02 146.80 1.68 1.41 2.47
Avg 25.86 32.71 45.75 120.46 128.74 149.56 1.44 1.51 2.06
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Temas de la revista:
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
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