RU2144582C1 - Method for producing high-impression effect by cross interweaving on double-needle flat knitting machines - Google Patents

Abstract

FIELD: light industry, in particular, production of high-impression knitted articles. SUBSTANCE: method involves providing successive knitting of double-layer knitted fabric based on incomplete irregular jacquard weaving; switching off needles on one or both needle units in accordance with pattern repeat along pattern width with following double knitting through pattern repeat height of at least two rows of plain weave prior to each shift stroke of one needle unit for value at least equal to double needle pitches at first to one side, then to opposite side for changing relief of pattern. EFFECT: increased efficiency by obtaining compound high-impression knitted fabric and wider range of articles obtained by method. 3 dwg

Description

 The invention relates to light industry and can be used in knitwear production, namely when knitting large-relief cross-knit knitwear for the production of knitted household goods on double-knit flat knitting machines.

 There is a method of obtaining a relief effect in knitwear based on weaving (see A. S. Dalidovich "Fundamentals of the theory of knitting" - M .: Light industry, 1970 - 366 S.), which consists in the formation of press loops on one side of a high index (more than two), and on the other hand - loops of normal size, which are pulled together by press loops, creating a relief effect. If in the series of knitting press loops are formed on the same needles, then the effect will be in the form of horizontal stripes, if on different ones, then in the form of bulges and depressions.

 The reasons that impede the achievement of the technical result indicated below include the fact that the possibility of obtaining a maximum index of press loops, which causes the formation of a relief effect, is limited.

 There is a method of obtaining a relief effect in knitwear on double-loop flat knitting machines (see copyright certificate N 1305214, B.I. N 15, 1987), which consists in sequential knitting double weave on the needles of both fonts with the subsequent transfer of loops from the needles of the front texture to needles of the back texture and knitting a single culinary weave with knitting with a patterned structure.

 The reasons that impede the achievement of the technical result indicated below include the fact that with this method a relief effect is obtained by combining the wrong side of the loops of one texture and the front side of the loops of another texture.

 The closest way to obtain a relief effect in knitwear using double-knit flat knitting machines, adopted as a prototype, is a method of obtaining a relief effect based on jacquard weaving (see O.A. Marisova "Knitted patterned weaves" - M .: Light industry, 1970 - 197 p.), Which consists in the formation on one side of the canvas of a group of jacquard loops with an index of two or higher, which are pulled behind themselves by the located loops of the other side.

 The reasons that impede the achievement of the technical result indicated below on flat knitting machines include the fact that with this method it is possible to obtain a large-relief effect on knitwear also in the form of horizontal stripes or in the form of bulges and depressions.

 EFFECT: obtaining a complex coarse relief effect in knitwear on double-loop flat knitting machines and expanding the range of knitwear products.

 The specified technical result in the implementation of the invention is achieved by the fact that the method for producing large-relief cross knit on double-loop flat knitting machines consists in sequential knitting of double knit on the basis of an incomplete irregular jacquard weave.

 The peculiarity is that the formation of a relief structure when knitting cross knit on the basis of an incomplete irregular jacquard weave is carried out by turning off the needles on one or both fonts according to the rapport across the width of the pattern, followed by double-knitting along the height of the rapport twice at least two rows of iron before each shift of one of the fonts to the value of at least two needle steps, first in one direction, then in the opposite direction, allowing you to change the appearance of the relief effect.

 The analysis of the prior art by the applicant, including a search by patent and scientific and technical sources of information, and the identification of sources containing information about analogues of the claimed invention, allowed to establish that the applicant did not find an analogue characterized by features identical to all the essential features of the claimed invention. The definition from the list of identified analogues of the prototype, as the closest in the set of essential features of the analogue, allowed to identify the set of essential distinguishing features in relation to the applicant’s technical result in the claimed device set forth in the claims.

 Therefore, the claimed invention meets the condition of "Novelty."

To verify the compliance of the claimed invention with the condition "Inventive step", the applicant conducted an additional search for known solutions in order to identify signs that match the distinctive features of the claimed method from the prototype. The search results showed that the claimed invention does not derive explicitly from the prior art for the specialist, since the influence of the transformations provided for by the essential features of the claimed invention on the achievement of the technical result is not revealed from the prior art determined by the applicant, in particular, the following transformations are not provided for by the claimed invention:
- addition of a known product by any known part (s) attached to it according to known rules to achieve a technical result in respect of which the effect of such additions is established;
- replacement of any part (s) of a known product with another known part to achieve a technical result, in respect of which the effect of such a replacement is established;
- the exclusion of any part (element) of the product with the simultaneous exclusion of its function and the achievement of the usual result for such exclusion (simplification, reduction of mass, dimensions, material consumption, increased reliability, etc.);
- the implementation of a known tool or part (s) of a known material to achieve a technical result due to the known properties of this material;
- the creation of a tool consisting of known parts, the choice of which and the relationship between them are based on known rules, recommendations, and the technical result achieved in this case is due only to the known properties of the parts of this tool and the relationships between them.

 The described invention is not based on the use of a quantitative attribute (s), the presentation of such signs in relationship, or a change in its form. This refers to the case when the fact of the influence of each of the indicated features on the technical result is known, and new values of these features or their relationship could be obtained from known dependencies and patterns.

 Therefore, the claimed invention meets the condition of "Inventive step".

 The drawings show graphical records of double cross-weave with a large relief effect of the following sizes of rapports: in FIG. 1 in height - twelve rows P01 - P12, in width - six looped posts I01 (I01 ') - I06 (I06'); in FIG. 2 in height - eight rows P01 - P08, in width - fourteen loop columns I01 (I01 ') - I14 (I14'); in FIG. 3 in height - sixteen rows P01 - P16, in width - ten looped posts I01 (I01 ') - I10 (I10').

 The proposed method is as follows.

 On a double-loop flat knitting machine according to the weaving pattern, the needles are turned off from the work I04 - I06 (Fig. 1), I12 - I14 (Fig. 2), I05 - I10 (Fig. 3) of the front texture PF and I09 ', I10' (Fig. 3 ) of the backframe of ZF, knit one P01 (Fig. 1, Fig. 2) or two P01, P02 (Fig. 3) of the eraser row, turn off the texture that performs the shift without dropping the loop from it. On another texture knit three rows of P02 - P04 (Fig.2), five P02 - P06 (Fig. 1), six P03 - P08 (Fig. 3) rows of iron. After knitting the rows of smoothness, the texture is shifted by three needle steps in one direction, and then after knitting the number of rows of the eraser P07 (Fig. 1), P05 (Fig. 2), P09 - P10 (Fig. 3), and P06 - P08 (Fig. 1), P08 - P12 (Fig. 2), P11 - P16 (Fig. 3) - in the opposite. At the same time, on the side of the moving background due to the pulling of the thread, the elastic loops increase and bend towards the moving background, and on the side of the non-moving background - the convex loop columns of the surface tilt in the opposite direction and create a wavy coarse relief effect. The type of effect depends on the size of the rapport: the number in it and the combination of the eraser rows, the smoothness in height, the working and turned off needles in the width of the rapport, the magnitude and direction of the texture shift.

 The application of the proposed method will allow to obtain a cross-knit with a large-relief effect, which is formed by combining the rows of eraser and smoothness, while the eraser row consists of tightened loops of non-moving texture and enlarged loops oriented in the direction of shear, which tighten the loop structure of the fabric from the side of non-moving texture and push the rows of smoothness from the plane of the canvas. Obtaining such a knitwear is carried out without complicating the process of knitting cross-weave. The sufficient simplicity of setting up a flat knitting machine allows you to get a variety of large relief patterns on both sides of the fabric, and this in turn will significantly expand the range of knitwear products. The method can be carried out on double-band flat knitting machines of any class.

Thus, the above information shows that when using the claimed invention, the following set of conditions is fulfilled:
- a tool embodying the claimed invention in its implementation, is intended for use in industry, namely in knitwear;
- for the claimed invention, as set forth in the claims, the possibility of its implementation using the means and methods described above or known prior to the priority date is confirmed;
- a tool embodying the claimed invention in its implementation, is able to ensure the achievement of the perceived by the applicant technical result.

 Therefore, the claimed invention meets the condition of "industrial applicability".

Claims (1)

 A method of obtaining a large-relief effect by cross-weaving on double-knit flat knitting machines, which consists in sequential knitting of a double knit on the basis of an incomplete irregular jacquard weaving, characterized in that the obtaining of a large-relief structure is carried out by turning off the needles on one or both fonts according to the rapport along the width of the pattern with subsequent knitting along the height of the pattern twice at least two rows of surface before each shift of one of the fountains by at least two needle steps Firstly, in one direction, then in the opposite direction, allowing you to change the appearance of the relief effect.

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