WO2003072864A1

WO2003072864A1 - Knit fabric and process for producing the same

Info

Publication number: WO2003072864A1
Application number: PCT/JP2003/002179
Authority: WO
Inventors: Masako Oka
Original assignee: Masako Oka
Priority date: 2002-02-28
Filing date: 2003-02-27
Publication date: 2003-09-04
Also published as: AU2003211754A1; JP2003253548A

Abstract

A knit fabric of natural feeling design motif such as “crease”, ”irregularity” or ”bias filling”. The knit fabric is constituted of a knitting yarn exhibiting a thickness unevenness (U%), measured by Uster tester, of ±3% or greater, a boiling water shrinkage of 5 to 15% and a twist multiplier (K) of 2500 to 13000, the knitting yarn containing polylactic acid fibers and having been subjected to 120ºC or below low temperature thermal treatment. In this knit fabric, referring to Fig. 1(b), each knitted loop undergoes oblique deformation, and, by virtue of the deformed knitted loop, there occur natural feeling “crease”, ”irregularity”, ”bias filling”, etc.

Description

Knitted fabric and manufacturing method thereof

Technique field

The present invention relates to a knitted fabric having a unique design utilizing shrinkage of a knitting yarn and a method for producing the knitted fabric.

Akira Background technology

book

Generally, knitted garments such as sweaters and cardigans by flat knitting machines are knitted for each part such as the front body, back body, and sleeves, and then these and the parts attached to each part are sewn with a linking machine or sewing machine. It is manufactured by In the production of these knitted garments, each part is knitted one by one by reciprocating motion of a flat type flat knitting machine. Stable yarns that do not cause abnormal tension have been applied. On the other hand, seamless sewing shorts with small circular knitting machines have been disclosed in US Pat. No. 4,048,189 and Japanese Patent No. 11990789, and in response to the spread of computerization. As for the flat knitting machine, a non-woven hole garment machine is disclosed in Japanese Unexamined Patent Application Publication No. Sho 60-194154, Japanese Unexamined Patent Application Publication No. Hei 7-119004, and the like. With this WHOLEGARMENT flat knitting machine, it is possible to diversify the combination of color scheme and knitting structure, and to save labor and shorten from sample production to commercialization.

As mentioned above, knitted fabrics have been developed that have potential for various designs, but these are mainly artificial or inorganic designs, lack novelty and appeal, and are sometimes lost. Personalization There is. On the other hand, due to the recent increase in nature orientation, irregular motifs or unbalanced motifs using “wrinkles”, “irregularities” or “skews”, which were previously treated as troublesome, have become more natural. It is considered that it can be a new design motif because it is unique or unique, and it can be applied to knitted fabrics. As a method of expressing an irregular motif or an unbalanced motif using “wrinkles”, “unevenness” or “skew” in a knitted fabric, deformation of a stitch can be considered. However, when applying deformation of a stitch to a conventional flat knitting machine or hole garment, for example, a knitted scratch or a stitch defect occurs at the both ears of the flat knitted fabric, or the skew direction of the front and rear bodies However, there is a problem that clothes become loose and lack a feeling of wearing. Disclosure of the invention

The present invention has been made in view of such circumstances, and realizes a novel and appealing unique design by deforming the stitches, and furthermore, there is no knitting scratches and knitting streaks, and when it is made into clothes, The aim is to provide a sense of knitting. In order to achieve the above object, a first knitted fabric of the present invention is a knitted fabric including a knitting yarn having a polylactic acid fiber, the knitted fabric having a deformation of a stitch caused by shrinkage of the knitting yarn. Further, the second knitted fabric of the present invention has fibers having a thickness unevenness of ± 3 or more measured by a U-star measuring instrument, and the boiling water shrinkage is in a range of 5 to 15%, A knitted material including a knitting yarn having a twist coefficient (K) of 2500 to 1300, and having a deformation of a stitch due to shrinkage of the knitting yarn. Since such a knitted fabric has a knitting deformation due to shrinkage of a knitting yarn containing polylactic acid fibers or a mesh yarn having the above-mentioned special characteristics, irregularities such as "wrinkles", "irregularities" and "skew" are caused. A motif or an unbalanced motif can be easily expressed, and there are no knitting scratches or knitting defects, and there is no problem in the feeling of wearing when made into clothing. The knitted fabric of the present invention may use a general knitting yarn in addition to the special knitting yarn. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a schematic diagram showing a stitch structure diagram of one embodiment of the present invention, and FIG. 2 is a schematic plan view showing an example of a relationship between a skew knitted fabric and a twisted yarn in the present invention. FIG. 3 is a schematic organization diagram of another embodiment of the present invention, and FIG. 4 is a schematic organization diagram of still another embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

The U% is preferably ± 3% or more, more preferably ± 10% or more, and the upper limit is 13%. The boiling water shrinkage is preferably 5 to 15%, more preferably 7 to 12%. Boiling water shrinkage is defined below. The twist coefficient (K) is preferably from 2,500 to 1,300, more preferably from 3,000 to 1,200,000.

(Definition of boiling water shrinkage)

JISL—1 0 1 3 7.15 According to the B method (filament shrinkage). Apply an initial load to the sample, measure 500 mm correctly, strike at 2 points, remove the initial load, immerse the sample in hot water of boiling water (98 to 100 cc) for 30 minutes, then remove it Drain lightly with blotter or cloth, air-dry and apply the initial load again, measure the length between the two points, and calculate the boiling water shrinkage (%) by the following formula. The number of samples shall be 5 times.

Boiler water shrinkage (%) = [(500-L) / 500] X100

L: Length between two points after boiling water treatment (mm) In the knitted fabric of the present invention, it is preferable that the knitting yarn having the predetermined physical properties (the second invention) contains a polylactic acid fiber. In this case, the content of the polylactic acid fiber is preferably 51% by weight or more, more preferably 65% by weight or more, or 100% by weight (polylactic acid fiber alone). . In the knitted fabric of the present invention, it is preferable that the deformed stitch is a flat stitch obliquely inclined. In the knitted fabric of the present invention, it is preferable that the skewed pattern, the anti-swing pattern or the convex side pattern is formed by forming at least one of the coloration pattern of the yarn-dyed yarn on the surface or the back. It is also preferable that unevenness is caused by the deformed stitch. The knitted fabric of the present invention is preferably clothing. There are no particular restrictions on clothing, and for example, there are tops such as sweaters and shirts to bottoms such as dresses, skirts and pants. The clothing is not limited to the outer garment, but may be a middle garment or an inner garment. Further, the clothing is not limited to human clothing, but may be animal clothing or doll clothing. Further, the knitted fabric of the present invention is not limited to clothes, and may be various types of covers such as furniture covers, telephone covers, vases, desk lamp covers, and tea covers. Next, a first method for producing a knitted fabric of the present invention comprises a knitting yarn containing a polylactic acid fiber. A knitted fabric is manufactured by knitting a knitted fabric, which includes a step of performing an overheat treatment at a temperature at which the knitting yarn shrinks, thereby causing a deformation of a stitch. In addition, the second method for producing a knitted fabric of the present invention includes a fiber having a thickness unevenness of ± 3 or more in U% measured by a wool measuring device, and a boiling water shrinkage of 5 to 15%. A method for producing a knitted product by knitting a knitting yarn having a twist coefficient (K) of from 2,500 to 1,300,000, wherein the knitting yarn is subjected to heat treatment at a temperature at which the knitting yarn shrinks. This is a manufacturing method in which a stitch is deformed by including a step. According to these manufacturing methods, the knitting yarn containing the polylactic acid fiber or the knitting yarn having the special characteristics shrinks, and as a result, the stitch is deformed. For this reason, in the knitted fabric obtained by the production method of the present invention, "wrinkles", "irregularities", "skews" and the like are easily developed by the deformed stitches, and the shape is maintained for a long time. There are no knitting scratches or knitting defects, and there is no problem with the feeling of wearing when made into clothing. In the production method of the present invention, it is preferable that the knitting yarn having the predetermined physical properties (the second production method) contains a polylactic acid fiber. In this case, the content of the polylactic acid fiber is preferably 51% by weight or more, more preferably 65% by weight or more, and may be 100% by weight. In the manufacturing method of the present invention, the heat treatment may be performed on the knitting yarn before knitting, may be performed after knitting, or may be performed before and after the knitting. . When the knitting is performed after the knitting, the entire knitted material may be subjected to a heat treatment, or may be a combination of an ironing treatment and a press treatment. When heat treatment is performed on the knitting yarn before knitting, the heat treatment is performed in the knitting yarn pre-dyeing process. May be a heat treatment. In this case, the dyed yarn becomes a heat-treated knitted yarn before knitting. The conditions for the heat treatment before knitting are, for example, 60 to 115 ° C, preferably 80 to 100 ° C, and more preferably 85 to 96. The conditions for the heat treatment after knitting are, for example, 95 to 118 ° C, preferably 98 to: L10 ° C, more preferably 98 to; is there. When the heat treatment is performed on the clothes, it is preferable that the heat treatment is performed in a substantially unconstrained state, since natural wrinkles and irregularities can be formed. In the production method of the present invention, the method of knitting the knitted fabric is a flat knitting in which the color pattern of the yarn-dyed yarn constitutes at least one of the front and back stitches. It is preferable to provide an oblique pattern, a swing pattern or a convex drawing pattern. In the production method of the present invention, hole garment is formed by a flat-type flat knitting machine requiring one line before and after using a yarn-dyed yarn or a circular knitting machine using a small double-ended needle. It is preferable to manufacture the above-mentioned knitted fabric by simultaneously or separately forming other members or accessory members and sewing these members to a whole garment. Hereinafter, the knitted fabric of the present invention will be further described by way of examples. As the yarn used in the present invention, for example, in the case where the stitch is a deformed flat stitch, a yarn made of a strong twisted yarn or a pre-twisted yarn of a synthetic fiber generally used such as polyester and nylon (the above-mentioned predetermined yarn) However, it is preferable to use a yarn made of polylactic acid fiber. The deformation of the stitch obtained by using such a yarn made of polylactic acid fiber is caused by an excessive number of strong twists. Unnecessary, just twisting a normal twist number or a slightly stronger twist number, the fiber is flexible and has a low-temperature setting property, so that a deformed stitch can be easily obtained. Further, knitted products obtained using polylactic acid fibers are degraded by microorganisms in the soil and water even if they are discarded after use, and are thus advantageous in the global environment. As described in Japanese Patent Application Laid-Open No. 2000-85031, for example, a yarn made of polylactic acid fibers is heated and melted to a melting point or higher, and then a plurality of fine fibers are formed. It can be obtained by winding a yarn obtained by discharging from a spinneret having the above-described discharge hole and cooling it at a predetermined speed. The wound yarn is stretched as necessary to make up a fiber whose thickness unevenness (U%) measured with a Wooster measuring instrument is ± 3% or more. A yarn made of polylactic acid fiber having a boiling water shrinkage of 5 to 15% can be obtained. The thickness unevenness (U%) of the yarn is preferably ± 3% or more, and more preferably ± 10% or more. The upper limit of the thickness unevenness (U%) of the yarn is as described above. The boiling water shrinkage is preferably 5 to 15%, more preferably 7 to 12%, as described above. The yarn may be a yarn made of long fiber filaments made of polylactic acid fiber, a spun yarn made of short fibers, or a long yarn made of long fiber filaments made of polylactic acid fiber and synthetic fibers or natural fibers. It may be a twisted yarn with a fiber filament, a mixed fiber yarn, or a mixed yarn as a short fiber spinning. In the present invention, for example, a knitted garment made of only polylactic acid fiber may be any yarn of any of long fiber filament yarn and short fiber spun yarn, It is preferable to set the degree to a low degree because a refreshing feeling is obtained and a natural and irregular pattern of irregularities appearing in the stitch is obtained. On the other hand, use blended yarn of polylactic acid fiber and natural fiber (silk, wool, cotton) or synthetic fiber (rayon, tencel, nylon false twisted yarn, etc.), or twisted or entangled mixed yarn. As a result, the characteristics of natural fibers or synthetic fibers can be exhibited, and a unique knitted garment can be obtained in accordance with the application with the mixing ratio and twist coefficient of polylactic acid fibers. In the present invention, it is preferable that a twist having a twist coefficient (K) in the range of 250 to 1300 is imparted to the yarn. This twist coefficient is calculated by the following equation: K = TX [thickness of yarn (dtex)] ^1/2

T in the equation represents the number of twists (times Zm). Here, if the twist number (K) is less than 250, the sufficient knitting of the obtained stitch may be difficult to develop. On the other hand, if the twisting coefficient (K) exceeds 1300, excessive twisting occurs, the texture is hard, and there is a possibility that a knitting problem may occur during the knitting of the passing trouble during knitting. The twisted yarn is pre-dyed before knitting. For example, the twisted yarn is rewound into a soft-wound cheese or a total package according to the form of the yarn dyeing machine, for example, a yarn dyeing machine such as a stuffing type package dyeing machine or a rotary paddle dyeing machine. Dye on the machine. The twisted yarn obtained as described above has a boiling water shrinkage of 5 to 15%, which is high shrinkage as compared with a normal yarn, so soft cheese or the like is preferable, but a pre-set yarn or a spring die tube is used. More preferably, total dyeing or muff dyeing is more preferable. The dyeing conditions are appropriately determined depending on the type of the dyeing machine and the dye. In this dyeing, an auxiliary may be used. After dyeing, it is finished with a smoothing agent, softening agent, etc. necessary for knitting, dewatered, dried, and wound up in a cone or cheese for finishing on a knitting machine. Next, the knitting yarn (yarn-dyed yarn) is set on a flat type flat knitting machine having a single row of needles at the front and rear, and the carriage is reciprocated so as to circulate from the front bed to the rear bed. A hole garment with a continuous body and back body is formed, and the sleeves arranged on both sides are simultaneously knitted. The knitting pattern should be such that the knitted product should be completed consistently with the attachment from the hem to the body cloth and the attachment around the final collar.All should be automatically switched by computer software, and the needle selection mechanism etc. should be linked to complete the product. Is also possible. On the other hand, when setting up a circular knitting machine using small double-headed needles, it is necessary to use a special circular knitting machine for each part.After separately organizing and finishing the circular fabric after knitting, design and size in the cut-and-sew process Separately, it is cut according to the pattern, machined, finished and set to manufacture knitted products. In the present invention, as the knitted garment of the hole garment, it is preferable that the stitches constituting the garment are formed of deformed flat stitches. Normally, in the horizontal knitting, the shape that is considered to be a beautiful stitch is a golden card, and the left and right loops of the constituent stitches have an equal balance. However, the deformed flat stitch of the present invention has an unbalanced left and right loop leg only in the shape of the stitch without accompanying the extreme twisting torque and twisting of the strong twisted piece twisted yarn and the pre-twisted yarn described above. It is very different in that it expresses its morphology and is soft. As an element due to this property, when polylactic acid fiber is used, This is presumed to be due to variations in the distribution of the degree of polymerization of the polymer, resulting in unevenness in thickness and shrinkage of boiling water in the longitudinal direction. In the knitting yarn of the second knitted fabric of the present invention, it is presumed that having the predetermined physical properties is a cause of the special deformed stitch. In the present invention, the formation of the whole garment is performed, for example, by drawing a design to be designed in advance using a computer graphic, by integrally configuring the body and the sleeve, and by attaching a necessary accessory part before and after that and a color scheme according to the design pattern. It is preferable to make a pattern by drawing, and to conduct a trial knitting using a knitting machine gauge such as size and stitch length and a yarn-dyed yarn to be used for confirmation. Specifically, in order to obtain a continuous skew pattern on the front and back body by the color scheme of the yarn-dyed yarn, two different twist factors (K) within the range of 250 to 1300 The actual twist coefficient can be set by comparing the degree of the helical pattern that is made on the prototype and the front and rear bodies. In addition, in order to obtain a swing pattern or irregular uneven pattern that can be expressed by the combination of the back and front of the front and back, the knitting course and stitch etc. can be set freely, or by combining multiple colors It is possible to set the size of the number of patterns. Furthermore, by using the inertia pattern, it is possible to obtain a variety of elegantly knitted patterns and a drawn pattern with irregular irregularities at the switching boundary.

'Finally, the knitted fabric is heat-treated without substantial restraint, and the remaining twist torque is regenerated to form a finished set. The heat treatment may be a dry iron or press set in a form of less than 120 dry irons. The processing temperature and time may be appropriately set depending on the material used. Confirmation of this quality is determined by the size and shrinkage of the washing test. Next, the relationship between the deformation of the stitch and the pattern in the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a loop shape of a flat stitch of a knitted knitting machine of the present invention. FIG. 1 (a) shows a stable flat stitch, and FIG. 1 (b) shows a deformed flat stitch.

In Fig. 1 (a), the flat stitch 1 is called the center line y_y 'in the vertical direction, the left looper from the mouth to the mouth, the loop head from the mouth to the head, and the loop head from the head to the right loop leader. I do. The height in the vertical direction is h, the width is w, and the thickness of the thread is d. Curve 2 in the loop indicates the twist direction and the number of twists. The left and right rudder have the same shape symmetrically about the center line y_y '. Similarly, the loop head is symmetrical. The thickness of the thread is the same throughout.

In other words, the stitch shown in Fig. 1 (a) is a stable flat stitch 1, and if the height / width ratio is the stitch ratio (h / w), the beautiful shape is theoretically 1.25. However, it is said that the beautiful flat stitch 1 is 1.36 because the actual thread has twists.

On the other hand, in the deformed flat stitch 1 'in Fig. 1 (b), the center line y_y' in the vertical direction is inclined to the left, the left and right shapes are different, and the thickness of the left loop leg dl Is thin and the thickness of the right loop d2 is large. Twisting number 2 also has many left-leaders and few right-loop leaders. As a result, the left loop radar sinks and becomes concave, and the right loop radar floats and becomes convex. This is a deformed flat stitch

1 'causes twisted knitted fabric. FIG. 2 schematically shows the relationship between the skew, the direction of twist, and the number of twists of a flat knitted fabric comprising the deformed flat stitches of the present invention. Fig. 2 (c) shows the left side of the flat knitted fabric. Figure 2 (d) shows the weft knitted fabric to the right, Figure 2 (e) shows the twisted yarn from the left, and Figure 2 (f) shows the twisted yarn from the right. In FIG. 2 (c), the entire knitted fabric 3 is skewed to the left and the individual flat stitches 1 ′ are also skewed in the same direction as in FIG. 1 (b). For the angle of inclination, the angle to the vertical in the vertical direction is evaluated at an oblique angle of 0 °. It is said that a general flat knitted fabric is a good flat knitted fabric with a skew angle of 0 ° within 3 °. In FIG. 2 (d), the flat knitted fabric 3 'inclined in the opposite direction to that of FIG. 2 (c) is skewed downward to the right, and the individual flat stitches 1' are inclined downward to the right. The angle of inclination is evaluated as the skew angle S ° with the angle to the vertical line in the evening direction, as in Fig. 2 (c). In FIG. 2 (e), the twisted yarn 4 shows the thickness in the vertical direction, and the fact that the twisting is performed from the left is represented by a solid line. The twisting direction is shown at the lower left, and the number of twists is shown by the number of solid lines. The arrow curve in the figure shows the direction of the turning torque generated when the twist is heat-treated or when the terminal is released, and corresponds to Fig. 2 (c). In other words, when the twisting yarn or the high twist yarn from the left in Fig. 2 (e) is used, the skewed flat knitted fabric 3 in Fig. 2 (c) is obtained. Conversely, the twisted yarn 4 ′ in FIG. 2 (f) corresponds to the flat knitted fabric 3 ′ and the deformed flat stitch 11 in FIG. 2 (d). In the present invention, the skew angle formed in the above-mentioned twist coefficient range of 250 to 1300 is preferably 30 ° or less, more preferably 20 ° or less, and more preferably in consideration of the texture and sunset. Actually, the slant pattern of the body and the sleeve of the whole garment using two or more colors is preferable because it is possible to express a large pattern every day. FIG. 3 is a modified flat stitch showing another example of the present invention. The formation of an uneven pattern at the boundary point composed of the back stitch and the back knitting is shown by plotting a weaving knitting structure diagram on a grid paper as a model along the center line y-y 'shown in Fig. 1 (b). Fig. 3 (g) shows the plane pattern, Fig. 3 (h) shows the vertical cross section of the knitted fabric with the horizontal border, and Fig. 3 (i) shows the horizontal cross section of the knitted fabric with the vertical border. It is a representation. In FIG. 3, symbols C 1 to C 6 arranged in the vertical direction on the left side of the figure indicate units formed in the address 1 by a continuous course of the front or back stitch of the stitch. Similarly, the symbols W1 to W6 arranged in the horizontal direction on the lower side also indicate a unit composed of a continuous ale of the front or back stitch of the stitch in the address 1. The direction of the oblique line shown in each address is drawn in the direction of the oblique center line y-y 'shown in FIG. 1 (b). For example, the diagonal line to the right of the diagonal line at address 1 (C1, W1) indicates that the deformed stitches in (C1, W1) are skewed diagonally to the right for all the stitches. Similarly, the downward descent of the address 2 (Cl, W2) on the right side indicates that the deformed stitch is skewed to the left in all stitches. First, at address 1 (Cl, W1) and address 2 (Cl, W2), the skew direction is reversed, as indicated by the skew lines. Address 1 1 (C 2, W 1) is formed in the opposite diagonal direction to address 1 (Cl, W 1), and address 1 2 (C 2, W 2) on the right is address 1 (C 1, W 1). It is the same skew direction as W 1). The flat knitted fabric 50 is composed of flat stitches in which the addresses adjacent to each other are different in the oblique direction both left and right and up and down. As a result, irregularities occur at the boundaries of the addresses shown in FIGS. 3 (h) and 3 (i). Fig. 3 (h) is a cross section of the flat knitted fabric 50 in Fig. 3 (g), and the cross section X--X 'line is along the addresses 1 to 6 and 11 to 16. FIG. 7 is a vertical cross-sectional view showing a deformed flat stitch, which is a boundary line that has changed. The uneven portion 10 1 at the longitudinal section is located at the intersection of addresses 1, 2, 11, and 12, and the knitting yarn that has formed a flat stitch that is individually deformed in each address It is presumed that the turning torques were combined and collected as total energy, resulting in protrusions on either side and stabilized. The adjacent projection-like unevenness 102 is at the intersection of addresses 3, 4, 13, and 14. The frequency of the appearance of the protrusions is spontaneous and exists only on one side. However, no projecting irregularities are observed at the intersections of addresses 2, 3, 12, and 13. In Fig. 3 (i), the vertical section Y-Y 'in Fig. 3 (g) is the boundary line along addresses 1 to 51 and addresses 2 to 52, and the different cross sections of the deformed flat stitch FIG. The section 13 1 with the uneven cross section is located at the intersection of addresses 21, 22, 31 and 32. As in FIG. 3 (h), no protrusions and depressions are observed at the intersections of addresses 11, 12, 21 and 22. In other words, even if each address is composed of the same number of ailes and courses in flat stitches that are skewed in the left, right, up, and down directions, the original twist, number of twists, twist direction, face and back of the spun yarn used It is presumed that due to a slight difference in the magnitude and direction of the knitting torque of the knitting yarn for each address due to the combination of the above, it does not necessarily occur adjacent to each other. The present invention is not simply a skewed flat knitted fabric, but is applied by taking advantage of the magnitude and variation of the boiling water shrinkage of the polylactic acid fiber, the surface and back stitches, the low-temperature setting property, and the like. By making full use of a sha tissue or the like, a stencil-like projection can be obtained. FIG. 4 is a plan view showing another example of the present invention. In the same figure, the flat knitted fabric 60 is formed by alternately arranging the front or back stitches of the flat stitches transformed into the size A, B, and C in units of 10 ゥ ales, and the knitting course is divided into blocks C 1 to C of several courses. After knitting the front or back stitch of the deformed flat stitch in succession to C9, switching to the reverse stitch for each block will deform the switching part The slant pattern can be composed of the flat stitches, and a zigzag vertical line pattern (swing pattern) can be obtained. For example, pattern 1 of block C 1 (C 1, A) is the top surface, pattern 2 (C 1, B) is the back line, and pattern 3 (C 1, C) is the top surface. A few courses will be organized with handle 1 of block C2 (C2, A) as the backslash, handle 2 (C2, B) as the face and handle 3 (C2, C) as the backlash. By repeating these arbitrarily, it is possible to obtain an arrow pattern by combining the color schemes. Next, examples of the present invention will be described.

(Example 1)

Polylactic acid fiber staple (2.2 dte XX 51 mm) with a thickness of 72.5 gelle / 30 yd roving, using a normal ring spinning machine to breakbreak draft 1.6 For the double and knitting yarns, set the twist factor per inch to 3.25 Z-twisting, set the total draft to 14.9 times, and spin at 30's (E, C, C) spinning conditions. Knitted yarn (manufactured by Kanebo Fibers Co., Ltd., trade name "Lactron" spun yarn). The twist coefficient (K) of this knitting yarn was 990. The thickness unevenness (U%) of the Wooster measuring device (manufactured by Measuring Instruments Co., Ltd.) was 13.1%. The boiling water shrinkage measured by the above method was 11%. The knitting yarn was dyed with a disperse dye in a produced color and a medium color (gray) in cheese (90 ° C. for 45 minutes). Next, using a fully automatic weft knitting machine 12 gauge (manufactured by Shima Seiki Co., Ltd., SWGX type), a women's sweater is planned. Up to grey, then switched to the produced yarn to knit the hole garment. As a result, At a carriage speed of 25 reciprocations / minute, the knitting from the knitting at the time of knitting was a little sticky, and there was no problem. The final set was finished with a dry iron at 120-130 ° C. The product weighs 190 to 5 gZ, skew angle (Θ) 14 to: 16 °, and forms a sloping pattern that extends over the front and back, as well as the sleeves, giving a soft texture. I got one night.

(Example 2)

25% by weight of polylactic acid fiber staple (2.2 dte X 76 mm), 30% by weight of polylactic acid fiber stable (3.3 dte XX 76 mm) mm and wool (3 to 5 dte xX 8 mm) Using a standard worsted spinning method (3 'spinning) with a blending ratio of 45% by weight (3mm, average fiber length), the number of twists of the spinning machine is 30 times / M. Z twisting, spinning speed 32/1 (Lactron and Wool blended yarn). The twist coefficient (K) of this blended yarn was 5365. The unevenness of thickness (U%) measured by Woice Yuichi Measuring Instrument (manufactured by Keisokuki Co., Ltd.) was 12.5%. Further, the boiling water shrinkage measured by the above method was 10.8%. In the finishing process, the twist ratio of 32Z2 was S-twisted at 82% of the original twist, and the twist was stopped at 65 ° C for 20 minutes. Further, the cheese was dyed in the same manner as in Example 1. Then, using the above-mentioned mixed spinning, by the fully automatic flat knitting machine used in Example 1, as two women's sweaters, the tie-dyeing projection pattern of FIG. 3 and the arrow pattern of FIG. Produced. In the actual flat knitted fabric design, in Fig. 3, the number of ales constituting the address is set to 20 ales (units: displayed as eyes) and 24 courses (tiers), and the front and back stitches are arranged alternately. Two color schemes are available: beige and gray. In FIG. 4, the block pattern 1 (C 1; 8 rows, A; ゥ Ale number 100 rows, same display below), Pattern 2 (C 2; 8 rows, B; 45 rows), Pattern 3 (C 3; 5 rows, B; 75 rows) and Pattern 4 (C4; 12th row, D; 30th) is sequentially set for the total number of needles (front, back, and sleeves), and the deformed flat stitch surface (here, pattern 1 and pattern) 3) and back side (pattern 2 and pattern 4). The design of the final pattern collapse part was modified on CAD. The color scheme was the same as that shown in Fig. 3. The final set was dried on a wire mesh at 80 ° C for 30 minutes. Each of the obtained sweaters expresses a characteristic pattern, and the two types of patterns shown in Fig. 3 each have a squeezing tone of about 5 to 10 mm. . In addition, with two colors, a natural uneven sweater was obtained in addition to the checkered pattern. In the two types of sweaters in the pattern shown in Fig. 4, the zigzag-shaped evening lines were sticking out. Also, with the two colors, the pattern of the blocks in the horizontal direction is different from each other, and the patterns are rich in elegance, and it is possible to obtain a sweater with slight unevenness on the front and back sides. Industrial applicability

As described above, the knitted fabric of the present invention expresses various design motifs such as irregular irregularities and skew that can be naturalized and individualized by deformed stitches caused by the shrinkage characteristics of the specific knitting yarn. can do. Such a knitted design can sufficiently respond to the consumer's growing preference for natural preference and individualization. Therefore, if the knitted fabric of the present invention is applied to clothing, for example, various outerwears or innerwears, when worn, will be deformed and fitted in accordance with the body shape and worn for a long time. It does not disappear or remain deformed even if worn repeatedly, and has a good appearance over a long period of time Can be expressed. In conventional knitted fabrics using natural fibers, design motifs such as "wrinkles" and "irregularities" are not sufficiently durable, and may shrink and change in size. Excellent quality can be maintained for a long time without any worries.

Claims

The scope of the claims

1. A knitted fabric including a knitting yarn having a polylactic acid fiber, the knitted fabric having a stitch deformation caused by shrinkage of the knitting yarn.

2. U% measured with a Wooster measuring instrument has fibers with a thickness irregularity of 3 or more in soil, boiling water shrinkage in the range of 5 to 15%, and twist coefficient (K) of 250 A knitted fabric including a knitting yarn having a size of 0 to 13000, the knitted fabric having a stitch deformation caused by shrinkage of the knitting yarn.

3. The knitted fabric according to claim 2, wherein the shrinking knitting yarn includes a polylactic acid fiber.

4. The knitted fabric according to claim 3, wherein the content of the polylactic acid fiber is 51% by weight or more.

5. The knit according to claim 1, wherein the deformed stitch is an obliquely flat stitch.

6. The knitted fabric according to claim 5, wherein the skewed pattern, the anti-swing pattern, or the convex approach pattern is formed by the color pattern of the yarn-dyed yarn constituting at least one of the front surface and the back surface.

7. The knit according to claim 1, wherein irregularities are caused by the deformed stitches.

8. The knitted fabric according to claim 1, wherein the form is clothing.

9. A production method for producing a knit by knitting a knitting yarn containing polylactic acid fiber, comprising a step of performing a superheat treatment at a temperature at which the knitting yarn contracts, thereby producing a deformation of a stitch. Method.

10. U% measured with a Wooster measuring instrument has fibers with a thickness unevenness of ± 3 or more, boiling water shrinkage is in the range of 5 to 15%, and twist coefficient (K) is 250 A method for producing a knit by knitting a knitting yarn of 0 to 1300, which comprises a step of performing a heat treatment at a temperature at which the knitting yarn shrinks, thereby producing a deformation of a stitch. Method.

11. The method according to claim 10, wherein the knitting yarn contains a polylactic acid fiber.

12. The method according to claim 11, wherein the content of the polylactic acid fiber in the knitting yarn is 51% or more.

13. The method according to claim 9, wherein the heat treatment is performed on the knitting yarn before knitting.

14. The method according to claim 13, wherein the heat treatment is a pre-dying step, and the heat-treated knitted yarn is a pre-dyed yarn.

15 5. The knitting of the knitted fabric is a flat knitting in which the color pattern of the yarn-dyed yarn constitutes at least one of the face and the back of the knitted fabric. 15. The method according to claim 14, wherein an oblique pattern, a swing pattern or a convex drawing pattern is produced.

16. Whole garments are formed by a flat type flat knitting machine that requires a single row of needles before and after using a yarn-dyed yarn or a circular knitting machine that uses a small double-ended needle, and simultaneously or separately with the formation of this hole garment 16. The manufacturing method according to claim 15, wherein another member or an accessory member is formed, and the member is sewn to a hole garment to manufacture the knit.

17. The method according to claim 9, further comprising the step of heating the knitted fabric to deform the stitches by heating.