Study on the adaptability of cellulose diacetate tow for tobacco to the typeof curling machine

The raw material of cigarette filters is cellulose diacetate slurry, and potentially harmful substances such as acetone are used during production. To improve cigarette filters’ filtering effectiveness, increase cellulose diacetate filaments’ utilisation rate, and reduce environmental pollution during production, this study aims to investigate the effects of cellulose diacetate tow specifications and crimping machine models on tow formation quality. In this paper, the correlation between the specification of cellulose acetate tow, crimping machine models, and the resulting tow quality is determined to guide the selection of crimping machines for practical production. To tackle the challenges of large sample sizes and high experimental costs, a multidimensional sampling method is developed. Utilizing a learning-based approach, we identify a robust nonlinear relationship among these three factors and validate the relationship by using historical production data. Our findings reveal a significant nonlinear correlation between the crimping machine model and both single and total deniers. Through two regression adjustments, a reasonable degree of regression fitting for the relationships among the three factors is achieved. The experimental results indicate that the selection of the crimping machine is positively correlated with the number of filaments in the bundle and the pressure on the rollers, while it is negatively correlated with the cross-sectional area of the filaments. Additionally, a production guidance model, which relates the crimping machine model to the specifications of cellulose acetate tow, is established.