Development of a Tool to Measure the Pressure Comfort of a Cap (II) — by the Analysis of Correlation Between Objective Pressure and Subjective Wearing Sensation

Abstract

A tool to evaluate the subjective wearing comfort of baseball caps from the objective measurement of pressure was developed. Comfortable fittability index (CFI) and holding power (HP) were defined to represent the subjective wearing comfort of caps. In order to define the CFI, average pressure and pressure distribution of cap pressure were obtained and subjective sensations were evaluated by wearing test. Two sets of caps were evaluated, one set made of elastic fabric (F-caps) and the other set made of non-elastic fabric (S-caps). F-caps exerted lower average pressure and smaller pressure distribution. In wearing test results, F-caps were comfortable within the wide rage of the cap size. From the results obtained, we tried to find the statistical relationship between the objective pressure and HP or CFI values. HP values increased with the increase of average pressure and also with pressure distribution, regardless of the textile properties. We analyzed the regression equation to estimate HP and pressure sensation utilizing average pressure and pressure distribution, and constructed the regression equation to estimate CFI using the calculated pressure sensation. We programed such estimated data in an algorithm and connected the measuring equipment of a cap pressure. Finally, a tool was developed to measure comfort and HP of a baseball cap from measuring the pressure inside caps.

Keywords

cap comfort comfortable fittablity index pressure distribution pressure sensation

Get full access to this article

View all access options for this article.

References

Nishimatsu, T. , Ohmura, K. , Sekiguchi, S. , Toba, E. , and Shoh, K. , Comfort Pressure Evaluation of Men's Socks using an Elastic Optical Fiber , Textile Res. J. 68(6), 435—440 (1998).

You, F. , Wang, J.M. , Luo, X.N. , Li, Y. , & Zhang, X. (2002). Garment's pressure sensation (1): Subjective assessment and predictability for sensation . International Journal of Clothing Science and Technology, 14(5), 317—327 .

You, F. , Wang, J.M. , Luo, X.N. , Li, Y. , & Zhang, X. (2002). Garment's pressure sensation (2): The psychophysical mechanism for the sensation . International Journal of Clothing Science and Technology, 14(5), 307—316 .

Wong, S.W. , Yi, L. , and Zhang, X. , Influence of Fabric Mechanical Property on Clothing Dynamic Pressure Distribution and Pressure Comfort on Tight-fit Sportswear , Fiber 60(10), 293—299 (2004).

Chan A.P. & Fan J. (2002). Effect of clothing pressure on the tightness sensation of girdles . International Journal of Clothing Science and Technology, 14(2), 100—110 .

Nakahashi, M. , Morooka, H. , Nakamura, N. , Yamamoto, C. , & Morroka, H. (2005). An analysis of waist nipper factor that affect subjective feeling and physiological response . Fiber, 61(1), 40—46 .

Tsujisaka T. , Azuma Y. , Matsumoto Y. & Morooka H. (2004). Comfort pressure of top part of men's socks . Textile Research Journal, 74(7), 598—602 .

Ng S.F. , and Hui C.L. (2001). Pressure model of elastic fabric for producing pressure garment . Textile research journal. 71(3), 275—279 .

Zhang X. , Yeung K.W. & Li Y. (2002). Numerical simulation of 3D garment pressure . Textile research journal. 72(3), 254— 252 .

10.

Kang T.J. , Park C.H. , Jun Y. & Jung K. ( 2006). Development of a tool to evaluate the comfort of a baseball cap from the objective pressure measurement (I) -holding power and pressure distribution -. Textile research Journal, accepted.