Development of the technology for producing new structures of shape-resistant two-layer plush knitwear

Аннотация

This paper presents methods for improving the shape stability of plush knitwear, which, despite its advantages, tends to deform under load due to the structure of the ground yarn. The structures of two- layer plush knitwear are considered, in which one layer is plush knitwear, and the other layer consists of more shape-stable weaves. Three variants of double-layer plush knitwear with different structures are described. These developments improve shape stability, reduce elongation, enhance thermal protection properties, and expand the range of knitwear applications. The advantages of the new variants include increased durability, improved quality, and an aesthetically pleasing appearance. Keywords: Plush knitwear, shape stability, pressed weave, thermal protection properties, double-layer knit fabric, knit structure, elongation, knit weaves. The American Journal of Engineering and Technology 11 https://www.theamericanjournals.com/index.php/tajet The American Journal of Engineering and Technology Introduction: Despite its softness and comfort, plush somewhat smaller compared to the main or derivative knitwear has some disadvantages, the main one being weaves on which they are based, due to the presence of a high tendency to deform under external loads. This is the stitches. This disadvantage can be eliminated by due to the structure of the plush knitwear’s ground creating double-layer knitwear where one layer consists yarn, which, unlike woven plush, has lower shape of plush knitwear, and the other layer consists of more stability. As a result, the application range of plush shape-stable weaves such as plain, ribbed, and pressed knitwear is limited, especially in cases where high weaves. quality and resistance to deformation are required. In the first variant of double-layer plush knitwear, the METHODOLOGY reverse layer is made of plush weave, and the front layer consists of triple-pressed weave. The structure of the We have developed several new knitwear structures, layers of the first variant of the double-layer plush one of which is a method of reducing elongation along knitwear is shown in Figure 1. the length of the knitwear by including pressed stitches in its structure. The elongation of pressed weaves is Figure 1. Structure of the layers of the first variant of double-layer plush knitwear. properties. The presence of elongated loops and The front side of the first variant of double-layer plush stitches in the knitwear structure reduces elongation knitwear consists of regular-sized loops (1) formed along the length, increases shape stability, and creates from yarns (2), elongated loops (3) formed from yarns a cellular effect on the surface of the fabric. (4), and stitches (5) (Figure 1a). The reverse side consists of plush loops (6) formed from ground To expand the range of knitwear, improve quality, and yarn (7) and plush yarn (8) (Figure 1b). The loops (1) of enhance shape stability, the structure of the second the front layer are connected to the loops (6) of the variant of double-layer plush knitwear was developed, reverse layer of the same row by means of a where the front layer is made with a double-pressed connecting yarn (9) (Figure 1). The plush stretches weave, and the reverse layer is made with a plush between the layers of double-layer knitwear increase weave. the thickness, thus enhancing the thermal protection The American Journal of Engineering and Technology 12 https://www.theamericanjournals.com/index.php/tajet The American Journal of Engineering and Technology Figure 2. Structure of the layers of the second variant of double-layer plush knitwear. front layer of the double-layer knitwear reduces The front side of the second variant of double-layer elongation along the length, increases shape stability, plush knitwear consists of elongated loops (1), stitches and the positioning of the elongated plush stretches (2), regular-sized loops (3), and a second stitch (4) between the layers increases the thermal protection (Figure 2a). The reverse side consists of plush loops (5) properties of the knitwear. formed from ground yarn (6) and plush yarn (7) (Figure 2b). The loops (1) of the front layer are connected to The third variant of double-layer plush knitwear is the loops (5) of the reverse layer using a connecting produced on a flat knitting machine. The front layer of yarn (Figure 2). The plush stretches are located the double-layer plush knitwear consists of incomplete between the layers of the double-layer plush knitwear, double-pressed weaves, and the reverse layer is made so the knitwear has high thermal protection of plush knitwear. properties. The presence of elongated loops in the Figure 3. Structure of the layers of the third variant of double-layer plush knitwear. The front side of the third variant of double-layer plush Enhanced thermal protection properties due to the knitwear consists of regular-sized loops (1), elongated formation of a highly porous three-dimensional stretche