RU2340712C1 - Secondary rib bi-knit - Google Patents

Abstract

FIELD: textile.

SUBSTANCE: secondary rib bi-knit includes repeated combination of two groups consisting of two or more similar lines of rib weaving. Groups are inserted one into another so that wales of one rib weaving group are placed between wales of the other group. Rib lines within one group are formed in series in the same wales of knitted item sides without any shifting.

EFFECT: stability of balanced bi-knit shape and textured effect on textile surface.

2 cl, 8 dwg

Description

The invention relates to the technology of knitwear production, namely to the knitwear of knitted derivatives of weaves, and can be used in the knitwear industry for household and technical products.

Known bilastic or interlock culinary knitwear, which is derived from the eraser and is a combination of two erasers 1 + 1, nested in such a way that between the loop columns of one eraser are looped columns of the other eraser [1]. This knitwear is double-faced, i.e. has front loops on both sides. However, bilastic has a low dimensional stability.

Known purl interlock knit with high dimensional stability, on both sides of which all the loops are purl [2]. The disadvantage of this knitwear is the technological impracticability of obtaining such a structure on modern knitting equipment.

The prior art also known knitwear two-layer derivative eraser containing on both sides of the fabric only the front loops with elongated broaches, each row is knitted with at least two threads that alternately form loops with an offset of one needle step [3]. This technical solution is the closest analogue of the claimed invention.

The disadvantage of this knitwear is a certain imbalance in the structure, due to the possible different number of loops on the front and back sides and leading to uneven operational properties.

The objective of the invention is the creation of a basic weave having a balanced structure and having high shape stability, as well as expanding the range of two-faced derivative of elastic knitwear.

The problem is solved due to the fact that the derived elastic double-faced knitwear contains in the rapport a combination of two groups of two or more identical rows of elastic weave, nested in such a way that between the loop columns of one group of rows of elastic weave are looped columns of another group of rows of elastic weaving, and the rows of the eraser within the group are formed sequentially in the same looped columns of the face and the wrong side without bias.

The advantages of the proposed derivative of an elastic double-faced knitwear are the presence of a form-stable double-faced balanced structure in which on each side of the loop of one group of the eraser are located opposite the loops of the other group of the eraser, as well as a slight relief-tint effect on the fabric texture.

An additional advantage of the claimed knitwear is the possibility of obtaining on its basis balanced lightweight structures with reduced material consumption and delicate effect by forming incomplete structures with missing looped posts.

Preferred variants of the structures of the claimed weave are produced by interlocking the needles in the fonts of a two-blade machine. Fundamentally, a proposal for an application does not exclude its development even with an elastic arrangement of needles, it also allows to obtain knitwear with the claimed distinctive features, however, the degree of balance of the structure of knitwear will be slightly lower than that developed during interlock arrangement, due to the displacement of the erasers in a row relative to each other by half needle pitch.

Variants of the structures of the claimed knitwear can be assigned to the class of derivatives of elastic weaves. All structures of a derivative elastic double-faced knitwear formed on the basis of full elastic elastic weaves have a width repeat of Rb = 2 and depending on the number of rows in the elastic weave groups can be called a two-row full derivative two-face eraser at Rh = 4, a three-row full derivative two-face eraser Rh = 6, etc.

When groups of identical rows of incomplete elastic weaves are used in groups of the same size, the rapport in width Rb is determined by the displacement of the thread during the transition from the front to the wrong columns or the number of missing columns. So, in incomplete structures with one missing column or through a needle offset Rb = 4, and in incomplete structures with two missing columns or a two-needle offset Rb = 6.

In General, for the structures of the proposed knitwear, the sizes of the rapport of the weave along the width Rb and height Rh are determined by the expressions

Rb = 2 + 2 * s = 2 (1 + s),

where s is the number of missing columns or the amount of displacement of the thread in the groups of elastic weaves;

Rh = 2 * r,

where r is the number of rows in the elastic weave groups.

The invention is illustrated by the examples presented in FIGS. 1-4, namely: FIG. 1 represents a graphical record (FIG. 1 a) and a loop structure (FIG. 1 b) of a double-row full derivative double-face eraser with weave parameters Rb = 2 and Rh = 4 ; figure 2 represents a graphical record (figa) and a fragment of a loop structure (fig.2b) of a three-row full derivative of a two-face eraser with the parameters of interweaving Rb = 2 and Rh = 6; figure 3 is a graphical record (figa) and the loop structure (fig.3b) of a two-row incomplete derivative of a double-faced eraser with a needle offset and weave parameters Rb = 4 and Rh = 4; Fig. 4 represents a graphical record (Fig. 4a) and a loop structure (Fig. 4b) of a three-row incomplete derivative of a double-faced eraser with a two-needle offset and weave parameters Rb = 6 and Rh = 6.

On figa from the threads H1 and H2 a group of two identical rows of elastic weaves is formed without shifting the loops of one row relative to the other, while the first and second threads H1 and H2 form loops on the front side of the fabric in columns 1, 3, 5, and on on the wrong side, these same threads form loops in columns 2 ′, 4 ′, 6 ′. The third and fourth threads H3 and H4 form the second group of rows of erasers having loops in columns 2, 4, 6 on the front side of the canvas, and in columns 1 ′, 3 ′, 5 ′ on the wrong side. All loops of the front and back sides are interconnected by elastic broaches P1, P2, P3 and P4, respectively, of each of the four threads H1, H2, H3 and H4.

Fig.1B clearly demonstrates the appearance of the loop structure of a two-row full derivative of an elastic double-faced knitwear. Sequential knitting of groups of rows of erasers made of H1-Н2 and Н3-Н4 threads determines the location of broaches P3-P4 over broaches P1-P2, which, taking into account the displacement of the hinge posts by half the height of the loop, results in the crossing of the “middle” or inner broaches P2 and P3. Features of knitting lead to the fact that broach P3 bends around broach P2, as a result of a change in the inclination of broaches P1 and P4, and especially broaches P2 and P3, as well as due to thickening from bending of threads, an insignificant relief-tint effect is formed and extensibility decreases as by width and length, i.e. shape stability increases.

A variant of the structure of the derivative of the elastic double-faced knitwear in Fig. 2a is a combination of two groups of erasers containing three identical (without offset) rows of erasers in the group, has parameters Rb = 2 and Rh = 6. The first, second and third threads - H1, H2 and H3 form loops on the front side of the canvas in columns 1, 3, 5, and on the wrong side the same threads form loops in columns 2 ′, 4 ′, 6 ′. The fourth, fifth and sixth threads - H4, H5 and H6 form loops on the front side of the canvas in columns 2, 4, 6, and on the wrong side the same threads form loops in columns 1 ′, 3 ′, 5 ′. A fragment of the loop structure of this knitwear in FIG. 2b shows the bending of broaches from threads H4 and H5 through broaches from threads H2 and H3, which leads to the formation of a more relief-tinted effect than the two-row derivative elastic double-faced weave.

A proposal for an application does not exclude the possibility of obtaining the inventive knitwear by combining groups of four or more rows of erasers. However, such an increase in the number of rows of erasers in the group will be accompanied by a significant decrease in elongation in length, which is impractical.

The above structures of the claimed knitwear are balanced and complete, i.e. they contain only front loops on both sides, and on each side the loops of one eraser group are opposite the loops of the other eraser group, therefore the canvas has a smooth, even texture.

Variants of the structures of the claimed knitwear are significantly complemented by the use of incomplete elastic weaves in combined groups of rows.

Figure 3 presents an incomplete two-row derivative elastic double-faced knitwear with parameters Rb = 4 and Rh = 4. The formation of the rows in Fig. 3a of one group of an incomplete eraser from the threads H1, H2 and the second group of an incomplete eraser from the threads H3, H4 is carried out with a needle offset of the front loops relative to the wrong ones inside the eraser row, as a result of which there are no loops on even sides in even loop columns: in columns 2, 4, 6, 8 on the front side and in columns 2 ′, 4 ′, 6 ′, 8 ′ on the wrong side. All loops of the front and back sides are interconnected by broaches of increased length. The resulting structural relief-tint effect is complemented by an openwork effect due to the gaps from the looped columns missing on both sides of the canvas and the presence of enlarged broaches connecting loops of only odd 1, 3, 5, 7 columns of the face and odd 1 ′, 3 ′, 5 ′, 7 ′ Columns of the wrong side (figb). The shape stability of incomplete structures compared with full structures is increased by replacing the loop broach.

The structure of an incomplete derivative of a double-faced eraser can be more sparse and have a more significant openwork effect due to an increase in the number of missing columns in the structure of knitwear, i.e. displacement values in incomplete elastic weaves. A graphical record of a variant of an incomplete three-row structure of the claimed derivative of a two-elastic knitwear with parameters Rb = 6 and Rh = 6 is presented in Fig. 4a. Threads H1, H2 and H3 form loops on the front side of the web in columns 1, 7, and on the wrong side, the same threads form loops in columns 4 ′, 10 ′. Threads H4, H5 and H6 form loops on the front side of the web in columns 4, 10, and on the wrong side, the same threads form loops in columns 1 ′, 7 ′. The loop structure of this weave (Fig. 4b) has two missing columns, broaches of an even longer length, a more pronounced openwork effect, and increased dimensional stability.

The undoubted advantage of the incomplete structures of the proposed knitwear is the possibility of a significant reduction in material consumption due to the absence of looped columns compared to the basic two-elastic weave and prototype. Another advantage of the incomplete structures of the claimed knitwear is the possibility of obtaining openwork-mesh effects due to the formation of loops of incomplete elastic weaves with a high modulus, which will provide good mobility of the structure and give the openwork effect the appearance of a wire mesh.

A proposal for an application does not exclude the possibility of producing pressed platen, lined, plush, incomplete and other patterned weaves based on the inventive derivative of elastic double-faced knitwear.

The considered options for the structures of the inventive knitwear allow us to talk about a significant expansion of the assortment of a derivative elastic double-faced knitwear due to the creation of patterned relief-tinted and delicate effects, as well as by changing the properties of the fabrics when using the inventive weave.

Information sources

1. Dalidovich A.S. Fundamentals of the theory of knitting. - M: Light Industry, 1970, p. 219, Fig. 104.

2. Patent No. 2156840 of the Russian Federation. MKI D04B 1/00. Wrong interlock knit. / Zinovieva V.A., Mukhina E.V. Publ. 09/27/2000, bull. Number 7.

3. Patent No. 2209261 of the Russian Federation. MKI D04B 1/00. Knitwear weave two-layer derivative eraser. / Zinoviev V.A., Popova M.A. Publ. 07/27/2003.

Claims (2)

1. Derived elastic double-faced knitwear, characterized in that it contains a combination of two groups of two or more identical elastic weave rows nested in such a way that looped columns of another group of elastic weave rows are located between the stitch columns of one group of elastic weave rows moreover, the rows of the eraser within the group are formed sequentially in the same looped columns of the face and the inside without displacement. 2. The derivative elastic double-faced knitwear according to claim 1, characterized in that in groups of the same rows contains incomplete elastic weaves and has missed looped posts.

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