CN114059223B

CN114059223B - Plush fabric and preparation method thereof

Info

Publication number: CN114059223B
Application number: CN202111303365.8A
Authority: CN
Inventors: 程龙; 陈伟
Original assignee: Jiangsu Sumec Textile Co ltd
Current assignee: Jiangsu Sumec Textile Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-11-15
Anticipated expiration: 2041-11-05
Also published as: CN114059223A

Abstract

The application discloses a plush fabric and a preparation method thereof, the plush fabric comprises core yarn and face yarn, the core yarn forms a core yarn layer, and the core yarn layer is positioned between plush and loops formed by the face yarn; at least one of said core yarn layers satisfies: in a unit area, the core yarns are distributed and arranged in parallel along the same direction, the number N of the core yarns covering the coils formed by the face yarns is more than or equal to 9, and the unit area is a rectangular area formed by two optional continuous transverse coils and two longitudinal coils. This application is through the change of physical structure, improves the radical and the proportion of the core yarn in the unit area to reduce the problem of unhairing, and then improve durability and the security that the product used, and adopt environmental protection or functional core yarn, fully embody the environmental protection nature of product or realize the functionality.

Description

Plush fabric and preparation method thereof

Technical Field

The application relates to the field of fabric textile, in particular to a plush fabric and a preparation method thereof.

Background

With the development of society and the progress of science and technology, people have higher and higher requirements on the quality of fabrics used for clothes and home textiles. The plush product is used as a major product in autumn and winter clothing and home textile products, and has rich changes and wide application. People pay more attention to the environmental protection, the functionality, the use safety and the like of plush products rather than the appearance aesthetic feeling, the comfort, the heat retention and the like, and people pay more attention to novel environment-friendly renewable raw materials, raw materials with antibacterial or other functions, bio-based raw materials and the like. However, in a short period, the novel raw materials are difficult to completely replace the common chemical fiber raw materials which are most used in the current plush products. In addition, in the daily practical use process of the plush products, people pay more attention to the safety problem of the products, and for example, the plush products are unhaired, and the fallen microfibre is easy to enter the respiratory tract of a human body to cause various diseases. Regarding the problem of hair falling of plush products, there is no complete solution for the current technology.

For conventional plush products, taking warp-knitted coral fleece fabrics as an example, for example, the warp-knitted bamboo charcoal coral fleece fabrics introduced in patent CN101929030A and the processing method thereof are characterized in that 75D/36F polyester filament yarns are adopted as bottom yarns, 150D/288F polyester superfine low-stretch yarns and 150D/144F bamboo charcoal polyester modified yarns are adopted as face yarns, and 260-280 g/m is finally obtained through the traditional weaving process and post-processing ² The finished fabric comprises 11.2-40.7% of bamboo charcoal polyester modified yarns and 17-18.6% of bottom yarns, and is only used for 280g/m ² For the following fabrics, 300g/m ² The ratio of the bottom yarns to the square gram weight of the fabricThe content of the modified bamboo charcoal polyester is relatively lower and is more difficult to reach 30-50%, and the modified functional bamboo charcoal polyester raw material is placed in the surface yarn layer, so that on one hand, the F numbers of the modified bamboo charcoal polyester yarns and the superfine polyester low-stretch yarns are greatly different, and therefore, the great difference of the suede handfeel of the surface yarn layer is easily brought, namely the handfeel is uneven and inconsistent; on the other hand, the functional bamboo charcoal polyester modified yarn is used as a face yarn, and the fiber structure of the functional bamboo charcoal polyester modified yarn is easily damaged in the post-finishing processing procedures of fluffing, carding, shearing, ironing, polishing and the like, so that raw material loss and function reduction are caused.

As also introduced in patent CN112176519A, an ultra-dull PV flannelette and a manufacturing process thereof are provided, wherein the face filaments (pile filaments) are ultra-dull polyester filaments with a circular cross section of 75D/36F, and the ground filaments are matt polyester low-stretch filaments with a circular cross section of 100D/36F, which are woven and processed by a conventional process, even if the ground filaments are thicker than the face filaments, the base fabric of the fabric becomes thicker, the base plate becomes harder, and the hand feeling and style of the fabric are changed accordingly, but the ratio of the ground filaments still cannot reach more than 30%. Through the investigation of the prior art, the conventional equipment and the general process at present are adopted, and theoretical calculation and practice prove that the high proportion of the bottom yarns of the plush fabric with higher gram weight is difficult to realize under the condition of not changing the style of the fabric and the thickness proportion of raw materials.

In addition, patent CN111041701A discloses a preparation process of a fox-wool-like fabric, which is characterized in that a bottom DTY layer is rubberized, so that the root of an acrylic yarn can be further and firmly fixed on the DTY layer on the basis of weaving, and the hair-shedding rate is reduced. However, the mode of coating glue on the back belongs to a chemical method, on one hand, the mode does not meet the environmental protection requirement, and on the other hand, the production and processing procedures are increased, and on the other hand, because the whole back is coated with a glue layer, galling cannot be carried out, so that the production and realization of the double-sided plush fabric are limited, and meanwhile, in the process of washing and using for many times in the later period, the glue is easy to age and even peel off, so that the adhesive force is reduced, and the long-term fixation effect on the veil is difficult to maintain.

Therefore, a technical scheme that the ratio of the core yarns is improved and the face yarns can be fixed durably through a physical structure so as to be difficult to fall off on the premise of not changing the style and the hand feeling of the existing product is needed.

Disclosure of Invention

The application aims to provide the plush fabric and the preparation method thereof, which can break through the limitation of the prior art and improve the number of core yarns in unit area, thereby reducing the problem of hair loss and further improving the durability and safety of product use.

In order to achieve the above purpose, the following technical solutions are proposed in the present application:

a warp knitting shogging device comprises a pattern disc and guide bars, wherein the cross section of the pattern disc is in an annular shape with unequal outer diameters, the annular shape is divided into x rows along the circumferential direction, and x is more than or equal to 2 and less than or equal to 8; at least two sloping surfaces are formed between the adjacent transverse rows on the outer surface of the flower disc.

In the prior art, because the gradient between the courses is larger, the machine can be injured due to too large one-step span, and the stability of the shogging is not facilitated, so that the accuracy of the organization structure is influenced; this application adopts this kind of structural design, has designed a slope that is gentle gradually for the buffering lets the sley bar remove step by step, can avoid the unstability that this kind of large-span brought, is favorable to realizing high accuracy and the steadily of tricot machine ware in the production surface fabric in-process, is favorable to protecting the machine to carry out serialization production, also is favorable to realizing the high-speed of machine.

As a further improvement of the application, the range of the push stroke motion angle between the adjacent courses is 7.5-82.5 degrees.

As a further improvement to the present application, the slope has a pressure angle in the range of 1 to 39 °. Furthermore, when two slopes are formed between adjacent rows, the pressure angle range of any slope is 15-35 degrees; furthermore, when three slopes are formed between adjacent rows, the pressure angle range of any slope is 10-15 degrees; furthermore, when four slopes are formed between adjacent rows, the pressure angle range of any slope is 5-10 degrees; further, when five slopes are formed between adjacent rows, the pressure angle range of any slope is 1-5 degrees.

As a further improvement to the application, the transition of sloping surface is arc to form the whole accurate surface curve, further improve production stationarity.

As a further improvement of the application, the guide bar is i, i is more than or equal to 5 and less than or equal to 8.

A warp knitting machine comprises the warp knitting traversing device.

The warp-knitted double-needle-bed plush fabric is produced by adopting a new stroke process instead of the traditional four-stroke process, so that the number N of core yarns which are distributed in parallel in the same direction and cover coils formed by the surface yarns or the core yarns in a rectangular area formed by 2 (transverse rows) multiplied by 2 (longitudinal rows) in any continuous process in the fabric is more than or equal to 9, the limitation that the number of the core yarns which are distributed in parallel in the same direction can only reach 4 or 5 needles in the traditional process and cannot be more than 5 or 6 in the same direction is broken through, the number of the core yarns in a unit area is increased, and the problems that the core yarns produced by the traditional process are insufficient in distribution density, low in coverage rate and low in occupied proportion are solved. Meanwhile, the production precision can be improved, the stable production can be realized, and the production efficiency can be greatly improved through testing, so that the production efficiency is improved by 30-50%. Certainly, the structure improvement of this application not only is applicable to the production of plush surface fabric, can also use in other knitting fields, not only limits to the plush surface fabric that this application said.

The plush fabric comprises core yarns and face yarns, wherein the core yarns form a core yarn layer, and the core yarn layer is positioned between plush and loops formed by the face yarns; at least one of said core yarn layers satisfies: in a unit area, the core yarns are distributed and arranged in parallel along the same direction, and the number N of the core yarns covering the loops formed by the face yarns is more than or equal to 9, wherein the unit area is a rectangular area formed by two loops in the horizontal direction and two loops in the longitudinal direction.

The number of the core yarns of the fabric in unit area is greatly increased, the problem of hair falling can be reduced, and the durability and the safety of product use are improved.

As a further improvement of the application, the mass of the core yarn accounts for 30-50% of the total mass of the plush fabric.

The proportion of the core yarn is too low: the face yarn proportion is relatively high, the wool surface is relatively plump, but the core yarn proportion is too low, and if the face core yarn layer is too thin, the fabric is too soft and collapses, the shape is unstable, no body bone exists, the stiffness and smoothness are lacked, more importantly, the core yarn proportion is too low, the covering density and the clamping force of the face yarn coil are insufficient, the problem of wool falling is easily caused, and besides, if the core yarn is functional fiber (such as antibacterial yarn) or environment-friendly yarn and the core yarn proportion is too low, the integral function and the environment-friendly performance of the fabric are influenced.

The proportion of the core yarn is too high: although the realization of the fabric functionality and the embodiment of the environmental protection performance can be ensured, the covering and clamping fastness of the face yarn loops can be improved, the core yarn layer of the fabric is too thick (too large in thickness), the middle base layer of the fabric is too thick and hard in hand feeling, the fabric plush layer (namely the face yarn layer) is relatively thin (the plush fabric is a prominent plush layer, so that 'the end is inverted'), and the overall style and hand feeling of the fabric are not good;

through numerous creative experimental researches of the applicant, the core yarn content is optimal when the core yarn content is 30-50%.

The method can improve the proportion of the core yarn in the fabric by changing the process structure of the product on the premise of not changing the style and the hand feeling of the existing fabric, so that the proportion of the mass of the core yarn layer in the plush fabric is 30-50%, particularly 300g/m ² The proportion of the core yarn is difficult to reach more than 30% in the fabric with the square gram weight, and the technical scheme of the application can be well realized. In addition, the proportion of the core yarn is obviously improved, the weave structure is obviously optimized, the clamping and fixing fastness of the core yarn to the face yarn is greatly improved, the hair falling rate of a product is reduced to be below 0.2%, and the fixation effect on the face yarn hair can be maintained for a long time due to the fact that the face yarn hair is fixed by adopting a physical structure, so that the durability and the safety of the product in the using process are greatly improved.

As a further improvement of the application, the gram weight of the plush fabric is preferably 200-650 g/m ² . Further preferably, the grammage is 250 to 650g/m ² . More preferably, the grammage is 300 to 650g/m ² . In a plush fabric, the higher the grammage, the more difficult it is to achieve a high core yarn ratio, relatively speaking, 200g/m ² The core yarn high ratio is easier to realize by the following gram weight fabric, but the core yarn high ratio exceeds 200g/m ² In particular 300g/m ² Due to the technical limitation, the core yarn proportion is difficult to reach more than 30% under the condition of not changing the style of the fabric, the thickness proportion of raw materials and the production efficiency, and the gram weight of the fabric can be obviously improved on the basis of the physical structure improvement of the application.

As a further improvement to the present application, the core yarn has a denier of 45 to 166D (filaments) or 32 to 120 ^S (staple fiber).

As a further improvement to the present application, the face yarn has a denier to core yarn ratio in the range of 1 to 4. Further, the fineness ratio of the surface yarn to the fineness ratio of the core yarn is in a range of 2 to 4.

Compared with the face yarn, the core yarn is too thick, namely the ratio of the fineness of the face yarn to the fineness of the core yarn is less than 1 (namely the core yarn is thicker than the face yarn), in this case, although the core yarn proportion is relatively high, the core yarn layer of the face fabric is too thick (the thickness is too large), so that the middle base layer of the face fabric is too thick and hard, and the plush layer of the face fabric (namely the face yarn layer) is relatively thin (originally, the plush fabric is a prominent plush layer, so that the 'end is inverted'), so that the overall style and the hand feeling of the face fabric are not good;

compared with the surface yarn, the core yarn is too thin, namely the titer ratio of the surface yarn to the core yarn is more than 4 (namely the core yarn is obviously much thinner than the surface yarn), in this case, the core yarn layer of the fabric is relatively thin, although the pile layer can be fully and prominently displayed, if the core yarn layer is too thin, the fabric is too soft and collapsed, the shape is unstable, no body bone exists, the stiffness and smoothness are lacked, and the key is that the core yarn is relatively too thin, in the weaving process, because the surface yarn is relatively too thick, the strength difference between the surface yarn and the core yarn is too large, in the simultaneous looping and weaving process, the core yarn is relatively easy to break, and further the fabric is broken and the like, so that the weaving trafficability of the fabric is greatly reduced (the weaving is not smooth).

As a further improvement to the present application, the core yarn is a filament or staple. Further, the filaments are differential filaments and the staple fibers are bio-based fibers.

As a further improvement of the application, the differential filament is modified polyester, regenerated polyester, functional polyester or chemical fiber filament with a special section. Further, the profiled cross-section filaments are triangular cross-section filaments or hollow cross-section filaments. The triangles and hollows will have a poor hand feel when used in a face yarn, but the two will avoid the problem of poor hand feel of the face yarn when used in a core yarn, while retaining the advantages of the face and core yarns.

As a further improvement to the present application, the bio-based fibers are hygroscopic heat-generating viscose, lyocell, triacetic acid or SORONA (SORONA). These staple fibers, when used in face yarns, have poor hand and are too lossy, but when used in core yarns, they avoid the problems of poor hand and large loss of the face yarns, while retaining their advantages.

The utility model provides a core yarn is novel raw materials such as modified dacron, regeneration dacron, functional dacron, biobased fibre, through arranging the material of this kind of environment-friendly in core yarn layer, is favorable to the environmental protection on the one hand, and on the other hand can make this kind of core yarn layer raw materials higher to the centre gripping fastness of top layer pile surface fabric through the structure of weaving of this application to under the prerequisite that does not change the style of current product, feel, the hair problem that falls is improved by a wide margin. In addition, this kind of novel surface fabric is owing to appear raw materials loss, function decline scheduling problem easily in the after-treatment course of working, and the core yarn layer has then been avoided above-mentioned problem in arranging in this application.

As a further improvement of the application, the pile length of the surface of the plush fabric is 3-15mm. A low pile height means that the face yarn ratio is relatively low and the core yarn ratio is relatively high, but it is emphasized that in the case of long pile heights in other ranges than a low pile height, the present application still enables a high ratio of the core yarn.

Through tests, the lint fabric has the lint shedding rate of less than 0.15%, the transverse shrinkage rate of 0-0.4% and the longitudinal tearing strength of more than 29.4N. The longitudinal tearing strength of the fabric is higher than that of a common plush fabric, and the transverse shrinkage rate is smaller, so that the fabric has good wear-resistant and anti-pulling performance, dimensional stability and shape retention, does not generate skewing, and is suitable for daily use.

The preparation method of the plush fabric comprises a weaving step on a loom, wherein when in weaving, the guide bars are i, i is more than or equal to 5 and less than or equal to 8; at least four guide bars are used for arranging the core yarn, and at least one guide bar is used for arranging the face yarn.

Further, the guide bar GB ₁ ～GB ₃ And GB _i-2 ～GB _i For arranging the core yarn.

Further, the guide bar GB ₁ 、GB ₂ And GB _i-1 、GB _i For arranging the core yarn.

Further, the weaving process may be:

N-N-N-N-N-N/0-0-0-0-0-0/(N-1)-(N-1)-(N-1)-(N-1)-(N-1)-(N-1)/0-0-0-0-0-0//

or 0-0-0-N-N-N/N-N-N-0-0-0/0-0-0- (N-1) - (N-1) - (N-1)/(N-1) - (N-1) - (N-1) -0-0-0/H

Or N-N-N-N-N-N-N-N/0-0-0-0-0-0-0-0/(N-1) - (N-1) - (N-1) - (N-1) - (N-1) - (N-1) - (N-1) - (N-0-0-0-0/ion/membrane

Or 0-0-0-0-0-N-N-N-N/N-N-N-N-0-0-0-0/0-0-0-0-0- (N-1) - (N-1) - (N-1) - (N-1)/(N-1) - (N-1) - (N-1) -0-0-0-0/ion/cell

Or N- (N-1) - (N-1) - (N-1) - (N-1) - (N-1)/0-1-1-1-1-1/H/R

Or 1-1-1-N- (N-1) - (N-1)/(N-1) - (N-1) - (N-1) -0-1-1/H/R

Or N- (N-1) - (N-1) - (N-1) - (N-1)/0-1-1-1-1-1-1/H/or H/R

Or 1-1-1-1-N- (N-1) - (N-1) - (N-1)/(N-1) - (N-1) - (N-1) -0-1-1-1// ion

Wherein N is more than or equal to 9.

Has the beneficial effects that:

1. this application has adopted the warp knitting sideslip device of the flower disc that has the flat and gentle slope more than at least two-stage, is favorable to realizing high accuracy, the stationarity and the high-speed of production.

2. The warp knitting traversing device enables the warp knitting machine to realize six strokes or eight strokes, twelve strokes and twenty-four strokes, further breaks through the limitation of the traditional process, and realizes that the number N of core yarns which are distributed and arranged in parallel along the same direction in a rectangular area formed by 2 (transverse rows) x2 (longitudinal rows) in any continuity in the fabric, which cannot be realized by the traditional process, is more than or equal to 9. Furthermore, the process can enable the proportion of the core yarn in the fabric to reach 30-50%, especially 300g/m ² The high proportion of the fabric with higher square gram weight can be realized (the production process in the prior art is difficult to ensure that the proportion of the core yarn of the fabric with high gram weight reaches more than 30 percent). Moreover, the core yarn high occupation ratio is realized without sacrificing the conditions of the style, quality, production efficiency and the like of the fabric, and the weave structure of the process can effectively fix the pile of the face yarn for a long time.

3. The novel environment-friendly or functional raw materials are placed on the core yarn layer instead of the surface layer, and the proportion of the novel environment-friendly or functional raw materials is not less than 30%, so that the environment-friendly or functional embodiment of the materials can be ensured; on the other hand, compared with the conventional face yarn raw material, the environment-friendly or functional material has larger difference in the aspects of single yarn fineness, yarn strength, dyeing and coloring and the like, and is placed in the core yarn layer, so that the influence of the environment-friendly or functional material on the style and hand feeling of the face fabric is avoided to the maximum extent, and in the after-finishing processing process, the environment-friendly or functional raw material positioned in the core yarn layer is not easy to damage and almost has no loss, so that the function is maximized and exerted while the loss is reduced to the minimum. In addition, the environment-friendly or functional raw materials are placed in the core yarn layer, so that the selection of the face yarn is not limited, and the diversification of products is realized.

4. The application adopts an innovative process structure, and the transverse shrinkage rate and the longitudinal tearing strength of the fabric are effectively improved. The longitudinal tearing strength of the fabric is about 2-3 times of that of the fabric in the traditional process, can reach more than 29.4N, and the problems of fabric damage, fabric breakage and the like caused by low tearing strength are not easy to occur in the fabric processing and later use processes, so that the fabric loss is reduced. In addition, the fabric has extremely excellent transverse dimension stability, the transverse shrinkage rate of the fabric can be kept between 0 and 0.4 percent under the condition of multiple times of water washing, and the fabric has remarkable advantages compared with the transverse shrinkage rate of 1 to 3 percent of the traditional process product, so that the daily service performance of the product is improved, the product has better shape retention, is not easy to wrinkle and is not easy to skew, and the fabric can be used as home clothing or bedding, enhances stiffness and smoothness and bone feeling, and simultaneously improves drapability.

It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent.

The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present disclosure, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the specific embodiments in accordance with the teachings of the present disclosure.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present application will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic view of the structure of the fabric of the present application, wherein the areas shown by black boxes are the unit areas described in the present application.

Fig. 2 is a schematic diagram of a flower disc structure in the prior art.

FIG. 3 is a schematic structural diagram of a six-stroke faceplate of the embodiment 1.

FIG. 4 is a schematic structural diagram of an eight-stroke faceplate of the embodiment 2.

In the figure, 1 is a transition point, α 1 is a pressure angle of the prior art, β 1 is a push stroke motion angle of the prior art, α 21 and α 22 are pressure angles of embodiment 1, and β 2 is a push stroke motion angle of embodiment 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely in the following with reference to the drawings of the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any invasive task, are within the scope of protection of the application. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.

The use of "first," "second," and similar terms in the description and claims of this patent application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Similarly, the singular forms "a," "an," or "the" do not denote a limitation of quantity, but rather denote the presence of at least one, unless the context clearly dictates otherwise. The terms "comprises" or "comprising," and the like, mean that the elements or items listed in front of the "comprises" or "comprising" encompass the features, integers, steps, operations, elements, and/or components listed in back of the "comprises" or "comprising," and do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may also be changed accordingly.

The application discloses a plush fabric and a preparation method thereof, which can reduce the problem of hair loss by increasing the number of core yarns in a unit area, thereby improving the durability and safety of the product in use.

In order to realize the change, the application also discloses a warp knitting machine which is mainly used for producing the plush fabric through improving a warp knitting traversing device.

The plush fabric comprises core yarns and face yarns, wherein the core yarns form a core yarn layer, and the core yarn layer is positioned between plush and loops formed by the face yarns; at least one of said core yarn layers satisfies: the number N of the core yarns which are distributed in parallel along the same direction and cover the loops formed by the face yarns is more than or equal to 9 in a unit area, and the unit area refers to a rectangular area (similar to a 2x2 loop unit as shown in figure 1) formed by two loops in any continuous transverse direction and two loops in longitudinal direction.

In some embodiments, the mass of the core yarn is 30-50% of the total mass of the plush fabric.

In some embodiments, the core yarn has a denier of 45 to 166D or 32 to 120 ^S 。

In some embodiments, the face yarn has a denier to core yarn ratio in the range of 1 to 4, and in at least one embodiment, the face yarn has a denier to core yarn ratio in the range of 2 to 4.

In some embodiments, the core yarn is a filament or staple.

In at least one embodiment, the filaments are modified polyester, recycled polyester, functional polyester, or profiled cross-section filaments. In at least one embodiment, the profiled cross-section filaments are triangular cross-section filaments or hollow cross-section filaments.

In at least one embodiment, the staple fiber is a bio-based fiber. In at least one embodiment, the bio-based fibers are hygroscopic heat-generating viscose, lyocell, triacetic acid, or SORONA (SORONA).

In some embodiments, the veil is a chemical fiber filament, and may be a common chemical fiber filament or a modified chemical fiber filament; either as-grown filaments or as re-grown filaments; can be common white silk or colored silk colored by stock solution; either as single component filaments or as multi-component composite filaments. And are not limited to the above list.

In some embodiments, the gram weight of the plush fabric is 300-650g/m ² 。

In some embodiments, the pile length of the surface of the pile fabric is 3-15mm.

The preparation method of the plush fabric comprises the following steps: the method comprises the following steps of face yarn warping, core yarn warping → upper weaving → grey cloth slitting → grey cloth combing → grey cloth ironing → grey cloth presetting → grey cloth dyeing (except yarn weaving and dyeing is not needed), upper flexibility → color cloth drying → color cloth napping (except single-side plush and napping is not needed) → color cloth napping (mainly performing napping on wool-like products, and selectively performing napping or non-napping on the rest products) → color cloth combing → color cloth ironing → color cloth shearing → color cloth shaking → color cloth finished product setting.

In the weaving process, the guide bars are i, i is more than or equal to 5 and less than or equal to 8. Specifically, when i =5, GB ₁ 、GB ₂ And GB ₄ 、GB ₅ Preparing a core yarn; i =6, GB ₁ 、GB ₂ And GB ₅ 、GB ₆ Preparing a core yarn; i =7, GB ₁ 、GB ₂ And GB ₆ 、GB ₇ Arranging core yarns or GB ₁ 、 GB ₂ 、GB ₃ And GB ₅ 、GB ₆ 、GB ₇ Preparing a core yarn; i =8, GB ₁ 、GB ₂ 、GB ₃ And GB ₆ 、GB ₇ 、GB ₈ And (5) configuring the core yarn.

In some embodiments, the weaving on the loom adopts six strokes, and the six-stroke weaving process comprises the following steps:

N-N-N-N-N-N/0-0-0-0-0-0/(N-1)-(N-1)-(N-1)-(N-1)-(N-1)-(N-1)/0-0-0-0-0-0//

or 0-0-0-N-N-N/N-N-N-0-0-0/0-0-0- (N-1) - (N-1) - (N-1)/(N-1) - (N-1) - (N-1) -0-0-0/ion-associated therewith

Or N- (N-1) - (N-1) - (N-1) - (N-1) - (N-1)/0-1-1-1-1-1/H/R

Or 1-1-1-N- (N-1) - (N-1)/(N-1) - (N-1) - (N-1) -0-1-1/H/R

In some embodiments, the weaving on the loom adopts eight strokes, and the weaving process of the eight strokes is as follows:

N-N-N-N-N-N-N-N/0-0-0-0-0-0-0-0/ (N-1)-(N-1)-(N-1)-(N-1)-(N-1)-(N-1)-(N-1)-(N-1)/0-0-0-0-0-0-0-0//

or 0-0-0-0-0-N-N-N-N/N-N-N-N-0-0-0-0/0-0-0-0-0- (N-1) - (N-1) - (N-1) - (N-1)/(N-1) - (N-1) - (N-1) -0-0-0-0/ion receptor

Or N- (N-1) - (N-1) - (N-1) - (N-1) - (N-1) - (N-1) - (N-1)/0-1-1-1-1-1-1-1// or 1-1-1-1-1-N- (N-1) - (N-1) - (N-1)/(N-1) - (N-1) - (N-1) - (N-1) -0-1-1-1// or

N is a positive integer and is more than or equal to 9.

A warp knitting machine comprises a machine tool body, a warp knitting traversing device and a transmission mechanism. The warp knitting shogging device is positioned on the machine tool main body and is connected with a transmission mechanism through a main shaft, a turbine reduction gearbox and the like, and the transmission mechanism is used for enabling the warp knitting shogging device to control the guide bar to move to generate shogging, so that a corresponding tissue structure is knitted, and different fabric grains are formed.

The warp knitting shogging device comprises a pattern disc, a push rod and a guide bar. A plurality of face plates are installed on the machine tool main body through shafts, one end of the push rod is mutually abutted to the outer surfaces of the face plates, and the other end of the push rod is connected with the guide bar. Because the height of the outer surface of the disc chuck is different, when the disc chuck rotates, the push rods which are mutually butted with the disc chuck can move transversely, and then the guide bars on the push rods are driven to move transversely, so that the designed organization process is formed. The flower disc is of an integrated structure, and the integrated structure is more favorable for the stability of the warp knitting traversing device. Of course, the faceplate is not limited to the above-described integrated structure, and may be composed of a plurality of chain blocks having different shapes and sizes. The number of said plates is generally equal to the number of bars used, at least two (two bars are generally single-bed machines for opening two piles).

For a better disclosure of the present application, the prior art solution is presented below for comparison. Fig. 2 is a schematic diagram of a structure of a flower disc in a four-stroke process. The flower disc is equally divided into 12 transverse rows, and only one inclined angle is arranged between every two adjacent transverse rows and is larger. Taking the slope between adjacent courses as an example, the prior art only has one slope, and the pressure angle α 1 of the slope is generally more than 40 °, while the push stroke movement angle β 1 between adjacent courses is between 0 ° and 7.5 °. Because the inclination angle of the surface of the faceplate between the four-stroke process rows is larger, when a large displacement is formed once, the gradient of the surface of the faceplate is steeper, the pressure angle is larger, and the acceleration in the motion process is suddenly changed, and the time (transverse moving angle) for allowing the displacement is also very limited under the condition, so that the movement is insufficient, the device is used for a long time, the service life of the device is influenced, the good operation of the device is influenced, and the device is unstable in operation and is not beneficial to high-speed operation.

The warp knitting traversing device breaks through the limitation that core yarns cannot be distributed and arranged in parallel along the same direction in a rectangular area formed by any continuous 2 (transverse rows) multiplied by 2 (longitudinal rows) in the traditional process, the number of the core yarns exceeds 5 or 6, and the warp knitting traversing device can solve the problem that fabrics produced by the traditional process, particularly 300g/m ² The fabric with higher square gram weight has the problems of insufficient distribution density of core yarns, low coverage rate and low occupied proportion. The method comprises the following specific steps:

the cross section of the flower disc is in a ring shape with different outer diameters, the ring shape is equally divided into x rows along the circumferential direction, and x is more than or equal to 2 and less than or equal to 8; at least two slopes are formed between the adjacent transverse rows on the outer surface of the flower disc.

In some embodiments, the range of angular travel between adjacent courses is 7.5 ° to 82.5 °. The pressure angle range of the slope surface is 1-39 degrees.

Specifically, during six strokes, two slope surfaces are formed between adjacent transverse rows, and the pressure angle range of any slope surface is 15-35 degrees; when eight strokes are performed, three slope surfaces are formed between adjacent transverse rows, and the pressure angle range of any slope surface is 10-15 degrees; during twelve strokes, four slope surfaces are formed between adjacent transverse rows, and the pressure angle range of any slope surface is 5-10 degrees; during twenty-four strokes, five or more slope surfaces are formed between adjacent transverse rows, and the pressure angle range of any slope surface is 1-5 degrees.

In some embodiments, the transition of the slope is curved to form an overall precise surface curve (curved surface) to make the guide bar move more smoothly and precisely.

In some embodiments, the guide bars are i bars, 5 ≦ i ≦ 8.

In the prior art, because the gradient between the courses is larger, the machine can be injured due to too large one-step span, and the stability of the shogging is not facilitated, so that the accuracy of the organization structure is influenced; this application adopts this kind of structural design, has designed a slope that is gentle gradually for the buffering lets the sley bar remove step by step, through the transmission more than at least two-stage, can avoid the unstability that this kind of large-span brought, is favorable to realizing high accuracy and the steadily of tricot machine in the production surface fabric in-process, is favorable to protecting the machine to carry out serialization production, also is favorable to realizing the high-speed of machine.

The present application will be described in further detail with reference to specific examples. Examples 1-3 illustrate the floral disc modification of the present application, examples 4-7 illustrate the plush fabric of the present application, and examples 8-9 illustrate the flow of production of the plush fabric of the present application.

Example 1

Fig. 3 shows a schematic drawing of a flower disc structure in a six-pass process (which is also an isometric reduction of one of the solutions).

The flower disc is equally divided into 8 transverse rows along the circumferential direction. The transition part 1 of the slope surface can be a straight line transition as shown in the figure or an arc surface transition, so that the use is smoother.

Two sloping surfaces are formed between adjacent transverse rows on the outer surface of the faceplate, the pressure angles alpha 21 and alpha 22 of the sloping surfaces are both between 15 and 35 degrees, and the push stroke movement angle beta 2 between the adjacent transverse rows is between 7.5 and 82.5 degrees.

Example 2

Fig. 4 shows a schematic diagram of a flower disc structure in an eight-stroke process (which is also an isometric scale of one of the schemes).

The flower disc is equally divided into 6 transverse rows along the circumferential direction.

Three slope surfaces are formed between adjacent transverse rows on the outer surface of the faceplate, the pressure angles of the slope surfaces are respectively between 10 and 15 degrees, and the push stroke movement angle between the adjacent transverse rows is between 7.5 and 82.5 degrees.

Example 3

The disc chuck of the present embodiment is equally divided into 4 rows in the circumferential direction.

Four slope surfaces are formed between adjacent transverse rows on the outer surface of the flower disc, the pressure angles of the slope surfaces are respectively between 5 and 10 degrees, and the push stroke movement angle between the adjacent transverse rows is between 7.5 and 82.5 degrees.

The warp knitting shogging device of this application owing to set up a plurality of gentle inclination, can make it reduce the impact, improves the car speed, even increased the length of single ranks, can not cause the operation unstability yet, has realized six strokes or eight strokes to this kind pushes away, can also be twelve strokes, twenty-four strokes etc. can reach the displacement amount of at least two-stage transmission sley bar, has protected equipment.

Example 4

A pile fabric has a core yarn layer satisfying in a unit area: the core yarns are distributed and arranged in parallel along the same direction, and the number of the core yarns is N =9, wherein the core yarns cover the coils formed by the face yarns.

The mass of the core yarn accounts for 30% of the total mass of the plush fabric.

The core yarn is a modified polyester filament yarn, and the cross section of the filament yarn is a hollow cross section. The fineness of the core yarn was 45D.

The titer of the surface yarn is 2.67 relative to that of the core yarn, namely the surface yarn adopts 120D/192F.

The gram weight of the plush fabric is 300g/m ² 。

Example 5

A pile fabric has a core yarn layer satisfying in a unit area: the core yarns are distributed and arranged in parallel along the same direction, and the number of the core yarns is N =11, and the core yarns cover the loops formed by the face yarns.

The mass of the core yarn accounts for 38% of the total mass of the plush fabric.

The core yarn is a regenerated polyester filament yarn. The fineness of the core yarn was 100D.

The titer of the face yarn and the titer of the core yarn are 1.5. Namely, the veil adopts 150D/228F dope colored polyester DTY low stretch yarn.

The gram weight of the plush fabric is 450g/m ² 。

Example 6

A plush fabric, which has two core yarn layers meeting in a unit area: the core yarns are distributed and arranged in parallel along the same direction, and the number of the core yarns is N =11, and the core yarns cover the loops formed by the face yarns.

The mass of the core yarn accounts for 50% of the total mass of the plush fabric.

The core yarn is a staple fiber, further SORONA. The fineness of the core yarn was 72S.

The titer of the surface yarn and the titer of the core yarn are 1. I.e., 75D ultra-dull flat FDY filaments were used for the face yarn.

The gram weight of the plush fabric is 315g/m ² 。

Example 7

A plush fabric, which has three core yarn layers in a unit area, satisfies the following conditions: the core yarns are distributed and arranged in parallel along the same direction, and the number of the core yarns is N =12, and the core yarns cover the loops formed by the face yarns.

The mass of the core yarn accounts for 45% of the total mass of the plush fabric.

The core yarn is short fiber, and further is moisture absorption heating viscose. The fineness of the core yarn is 32 ^S 。

The titer of the face yarn is 2 to that of the core yarn. Namely, the veil adopts 330D cation and terylene composite filament.

The gram weight of the plush fabric is 580g/m ² 。

Tests show that the pile-shedding rate of the plush fabrics of the embodiments 4-7 is less than 0.15%, the transverse shrinkage rate is 0-0.4%, and the longitudinal tearing strength is more than 29.4N.

Example 8

The production process of the plush fabric comprises the following steps:

(1) Selection of raw materials

A. Surface yarn: the 150D/228F stock solution coloring regenerated polyester yarn and the 150D/288F common white yarn are respectively arranged on the two wool combs or are combined on the two wool combs according to a certain rule, and the two raw materials are respectively arranged on the two wool combs so as to form different color and pattern combinations.

B. Core yarn: 40S lyocell staple fibers. The raw materials for producing the yarn are inexhaustible natural plant cellulose in nature, the production process has no chemical reaction, the used solvent is nontoxic, and the solvent recovery rate can reach 99.7 percent. In addition, harmful gases such as carbon disulfide, hydrogen sulfide and the like can not be released in the processing and manufacturing process of the lyocell fiber, and the lyocell fiber is a low-carbon, energy-saving and environment-friendly green fiber. In addition, the lyocell has the characteristics of high strength, basically no shrinkage, excellent moisture absorption, moisture permeability and air permeability, no generation of static electricity and the like, and is an environment-friendly fiber raw material.

(2) Yarn warping

A. Surface yarn: adopt SGZ400D intelligence computer control warper, coiled hair specification: "Φ 21X21"; number of warping head lines: 432. a root; warping speed 1200rpm; single yarn warping tension: 15 to 16cN.

B. Core yarn: adopt SGZ300D computer control high-speed warper, pan head specification: "Φ 21X21"; warping hairline number: 432. a root; the warping speed is 1500rpm; single yarn warping tension: 9 to 11cN.

(3) Weaving on a loom: an RD6 DPLM pile type double needle bed warp knitting machine equipped with 6 guide bars was used, no.: e20; the width of the machine is as follows: 138 inches; the warp knitting shogging device of the warp knitting machine is modified from four strokes to the six-stroke process of the embodiment 1 so as to meet the product requirements.

A. Drawing-in:

GB ₁ 、GB ₂ 、GB ₅ 、GB ₆ 40S lyocell short fibers are fully arranged.

GB ₃ :150D/228F stock solution coloring regenerated polyester yarns and 150D/288F common white yarns are prepared, and the yarns are threaded in half and then threaded in half.

GB ₄ :150D/228F stock solution coloring regenerated polyester yarns and 150D/288F common white yarns are configured, and the yarns are half-through, namely one-through and one-empty.

B. Weaving:

is carried out according to the following weaving process

GB ₁ ：9-9-9-9-9-9/0-0-0-0-0-0/8-8-8-8-8-8/0-0-0-0-0-0//

Let-off amount: 6100mm/rack;

GB ₂ ：0-1-1-1-1-1/1-0-0-0-0-0//

let-off amount: 2320mm/rack;

GB ₃ ：0-1-1-0-1-1/1-0-0-1-0-0//

let-off amount: 28850mm/rack;

GB ₄ ：0-1-1-0-1-1/1-0-0-1-0-0//

let-off amount: 28850mm/rack;

GB ₅ ：0-0-0-0-1-1/1-1-1-1-0-0//

let-off amount: 2320mm/rack;

GB ₆ ：0-0-0-9-9-9/9-9-9-0-0-0/0-0-0-8-8-8/8-8-8-0-0-0//

let-off amount: 6100mm/rack.

Setting the opening space of the front and the back needle beds to be 29mm, setting the drawing density to be 10.5cpc, setting the starting speed to be as follows: 980rpm (conventional equipment start-up speed 700-800 rpm).

(4) Cutting the grey cloth into pieces:

and (3) slitting the double-layer gray fabric woven in the previous procedure through a vertical slitting machine, and controlling the height and the gram weight of the two-side wool to be consistent, thereby obtaining the two-side single-layer colored gray fabric.

(5) And (3) dyeing and finishing post processing:

combing the colored gray fabric: the fluff wound on the cloth surface is combed preliminarily, and meanwhile, impurities such as foreign fibers and the like on the cloth surface can be removed;

→ colored gray fabric lustre: adopting a four-roller ironing at 160-170 ℃ to endow the cloth surface with certain glossiness and flatness;

→ colored gray fabric pre-setting: setting width and overfeed parameters according to the required width and gram weight, controlling the presetting temperature at 165-175 ℃ and the vehicle speed at 15-40M/min, and enabling the grey cloth to obtain a primary stable size and morphological structure after a heating stage, a thermal balance stage, a fiber molecular chain rearrangement stage and a cooling stage;

→ colored gray fabric is refined and washed, a large roller washing machine or a liquid flow dyeing machine is adopted for refining and washing, 1.5 to 3g/L of refining agent is added, the temperature rising rate is set to be 1.5 ℃/min, the heat preservation temperature is set to be 90 to 100 ℃, the heat preservation time is 20 to 30min, and the temperature reduction rate is 1.8 ℃/min; used for removing oil stain, contamination, oil smell and the like on the surface of the fabric.

The color cloth is soft: softening on the upper surface by adopting a padder, proportioning a softening agent and a smoothing agent with the concentration of 30-60 g/L and tertiary water, injecting into a rolling groove, adopting a two-dipping and two-rolling mode, controlling the softening speed to be 5-15M/min, and dehydrating the dyed cloth after softening;

→ color cloth drying: setting the temperature of the setting machine at 160-170 ℃ and the vehicle speed at 15-40M/min, and removing redundant water in the cloth;

→ salbutamol: adopting 4 groups of napping machines to carry out combined drawing, wherein each group of napping machines is 36 rollers or 36 rollers and 24 rollers are alternately arranged, and the front part of the napping machine is uniformly drawn to the back;

→ color combing: combing the front plush and the back plush at least once, combing the plush and making the front and back plush directions consistent;

→ color cloth gloss: two-roller or four-roller combined ironing at 160-170 ℃ is adopted, so that the smoothness and the glossiness of the cloth surface are further improved;

→ color cloth clipping: the cloth cover is trimmed by a shearing machine to ensure that the cloth cover is uniform in height, and meanwhile, the air suction device sucks the floating hair of the cloth cover;

→ color cloth fluff blowing: setting the temperature of a hot air blower at 120-160 ℃, and blowing the cloth surface plush to be more dispersed and upright, so that the cloth surface style is more exquisite and outstanding;

→ shaping of the finished color cloth: and (3) carrying out final shaping at the temperature of 160-170 ℃, thereby finally fixing the shape of the fabric.

According to the process, the final fabric is prepared, and the gram weight of the finished product is as follows: 635g/m ² The wool height is 13.5mm, the face yarn ratio is 65%, the core yarn ratio is 35%, and the number of the core yarns which are distributed and arranged in parallel along the same direction and cover the loops formed by the face yarns is 9 or 10 in a unit area formed by random continuous 2 (transverse rows) multiplied by 2 (longitudinal rows) in the fabric. The fabric is tested by an I n-House Test Method 019 standard: the hair-loss rate is 0.11 percent, the transverse water washing shrinkage rate is 0.2 percent, the longitudinal tearing strength is 43.5N, and the resistivity of the fabric is 1.05X10 through AATCC76:2011 standard test ⁷ Omega, has obvious antistatic effect, does not relate to the dyeing process of chemical dyes in the production and processing process of the fabric, saves water and water, and ensures that the product has more healthy and environment-friendly idea and attribute.

Example 9

A production process of a plush fabric comprises the following processes:

(1) Selection of raw materials

A. Surface yarn: 150D/288F full dull, straight "flat section DTY polyester filament. The raw material has elegant and soft luster and fine and soft hand feeling, and is especially suitable for plush products.

B. Core yarn: 75D/72F semi-dull, circular cross-section FDY coffee yarn. The raw materials adopt daily waste coffee grounds, polyester is used as a carrier, a nano processing technology is applied, nano holes are formed on the surface and inside of the yarn through high temperature and activation and combination of nano antibacterial silver ions, peculiar smell can be adsorbed, and the concentration of harmful gases in the air can be reduced. And the nano silver ions in the yarn are distributed to more than 500ppm, and the yarn has a lasting antibacterial function.

(2) Yarn warping

A. Surface yarn: adopt SGZ400D intelligence computer control warper, coiled hair specification: "Φ 42X21"; number of warping head lines: 498. a root; warping speed 1200rpm; warping tension: 15 to 16cN.

B. Core yarn: the high-speed warping machine is controlled by an SGZ300D computer, and the pan head specification is as follows: "Φ 21X21"; number of warping head lines: 498. a root; the warping speed is 1500rpm; warping tension: 8 to 9cN.

(3) Weaving on a loom: an RD5 DPLM pile type double needle bed warp knitting machine equipped with 5 guide bars was used, no.: e22; the width of the machine: 110 inches; the warp knitting traversing device of the warp knitting machine is modified from four strokes to the eight-stroke process of the embodiment 2 so as to adapt to the product requirements.

A. Drawing-in:

GB ₁ 、GB ₂ 、GB ₄ 、GB ₅ all the coffee yarns are provided with 75D/72F semi-dull and circular-section FDY coffee yarns and are fully penetrated.

GB ₃ : and (3) configuring 150D/288F full-dull and straight-line-shaped flat-section DTY polyester filament yarns, and fully penetrating.

B. Weaving:

is carried out according to the following weaving process

GB ₁ ：10-9-9-9-9-9-9-9/0-1-1-1-1-1-1-1//

Let-off amount: 6710mm/rack;

GB ₂ ：0-1-1-1-1-1-1-1/2-1-1-1-1-1-1-1//

let-off amount: 2130mm/rack;

GB ₃ ：0-1-1-1-0-1-1-1/1-0-0-0-1-0-0-0//

let-off amount: 13260mm/rack;

GB ₄ ：1-1-1-1-0-1-1-1/1-1-1-1-2-1-1-1//

let-off amount: 2130mm/rack;

GB ₅ ：1-1-1-1-10-9-9-9/9-9-9-9-0-1-1-1//

let-off amount: 6710mm/rack.

The opening space of the front and the back needle beds is set as 11mm, the drawing density is 11.5cpc, the starting speed is as follows: 1050rpm (conventional device turn-on speed 700-800 rpm).

(4) Cutting the grey cloth into pieces:

and (3) cutting the double-layer grey cloth woven in the previous procedure by a vertical cutting machine, and controlling the height and the gram weight of the two-side grey cloth to be consistent, thereby obtaining the two-side single-layer grey cloth.

(5) And (3) dyeing and finishing post-processing:

combing grey cloth: the fluff wound on the cloth surface is combed preliminarily, and meanwhile, impurities such as foreign fibers and the like on the cloth surface can be removed;

→ gray fabric iron finishing: adopting a four-in-one roller with the temperature of 160-180 ℃ for ironing and polishing, and endowing the cloth surface with certain glossiness and flatness;

→ pre-setting of the grey fabric: setting width and overfeed parameters according to the required width and gram weight, controlling the presetting temperature to be 175-185 ℃ and the vehicle speed to be 20-50M/min, and enabling the grey cloth to obtain a primary stable size and morphological structure after a heating stage, a thermal balance stage, a fiber molecular chain rearrangement stage and a cooling stage;

the method comprises the following steps of → grey cloth dyeing and white blank dyeing (yarn-dyed grey cloth does not need dyeing), dyeing by using a high-temperature high-pressure liquid flow dyeing machine in an environment with the pH value of 6-7 by using disperse dyes, wherein the heating rate is 1.5 ℃/min, the heat preservation temperature is 120-130 ℃, the heat preservation time is 30-45 min, and the cooling rate is 1.8 ℃/min;

→ drying of color cloth: setting the temperature of the setting machine at 165-175 ℃, and the speed of the vehicle at 20-50M/min to remove the redundant water in the cloth;

→ napping: adopting 4 groups of napping machines to carry out combined drawing, wherein each group of napping machines is 36 rollers or 36 rollers and 24 rollers are alternately configured, and the front part of the napping machine is uniformly drawn to the back (except single-side napping, napping is not needed);

→ color combing: combing the front plush and the back plush at least once respectively, combing the plush and making the front and back plush directions consistent;

→ color cloth gloss: two-roller or four-roller combined ironing at 160-180 ℃ is adopted, so that the smoothness and the glossiness of the cloth surface are further improved;

→ color cloth clipping: the cloth cover is trimmed by a wool trimmer to ensure that the cloth cover has uniform and consistent wool height, and meanwhile, the air suction device sucks the floating wool of the cloth cover;

→ color pad shaking: setting the temperature in the grain shaking cylinder at 60-100 ℃ to form certain degree of grains on the cloth surface plush so as to make the cloth surface style more fresh and clear;

→ shaping of finished color cloth: and finally shaping at 170-180 ℃, thereby finally fixing the shape of the fabric.

According to the process, the final fabric is prepared, and the gram weight of the finished product is as follows: 380g/m ² The wool height is 5mm, the face yarn accounts for 59%, the core yarn accounts for 41%, in the unit area formed by 2 (transverse rows) X2 (longitudinal rows) in any continuous fabric, the core yarn is distributed and arranged in parallel along the same direction, and the number of the core yarn covering the loops formed by the face yarn is 9 or 10. The fabric is tested by an I n-House Test Method 019 standard: the hair loss rate is 0.11%, the transverse washing shrinkage rate is 0.2%, the longitudinal tearing strength is 35.7N, and the bacteriostatic rate of staphylococcus aureus, escherichia coli and streptococcus pneumoniae can reach more than 96% through ASTM2149 standard test.

In the application, the process that the knitting needles finish the yarn laying action one by one is a row. The distance of the pattern disc passed by one yarn laying action is one stroke.

The warp knitting double-needle bed plush fabric is produced by adopting a six-stroke or eight-stroke process innovatively, so that the number N of core yarns which are distributed and arranged in parallel along the same direction and cover a coil formed by the surface yarns or the core yarns in a rectangular area formed by 2 (transverse rows) x2 (longitudinal rows) in any continuous way in the fabric is more than or equal to 9, the limitation that the number of the core yarns which are distributed and arranged in parallel along the same direction cannot exceed 5 or 6 because the maximum transverse movement of a single time can only reach 4 or 5 needles in the traditional process is broken through, and the problems of insufficient distribution density and low coverage rate of the core yarns of the fabric produced by the traditional process are solved. In addition, the warp knitting double-needle bed plush fabric is produced by adopting a six-stroke or eight-stroke process instead of the traditional four-stroke process, so that the high precision and the stabilization of a warp knitting machine in the fabric production process are favorably realized, the continuous production of the machine is favorably protected, the high speed of the machine is favorably realized, and the production efficiency is improved by 30 to 50 percent.

Among this application is applied to the pile product with novel raw materials part, as core yarn layer (nexine) of pile surface fabric, be favorable to the environmental protection on the one hand, on the other hand utilizes the technology structure of this application, can make the core yarn layer higher to the centre gripping fastness of face yarn layer (top layer) pile to can improve the hair problem of falling by a wide margin.

Repeated tests show that when the proportion of the raw material quality of the core yarn layer in the plush fabric is 30-50%, the comprehensive effect is optimal, the problem of hair falling can be greatly improved, and the existing hand feeling of the plush fabric is not influenced.

The fabric is treated by a physical structure innovation method rather than a chemical method, so that the problem of hair falling can be greatly reduced, and the durability and the safety of a product in the using process can be improved.

The fabric part of the application adopts environment-friendly or functional raw materials, and can maximally avoid the influence on the style and the hand feeling of the fabric while ensuring the embodiment of the environment-friendly or functional properties of the fabric part, and can solve the problems of raw material loss, function reduction and the like in the after-finishing processing process.

The longitudinal tearing strength of the plush fabric produced by the innovative process is about 2-3 times that of the plush fabric produced by the traditional process, and can reach 29.4N, and the problems of fabric breakage, cloth breakage and the like caused by low tearing strength are not easy to occur in the fabric processing and later use processes. In addition, the transverse dimension stability of the fabric is extremely excellent, the transverse shrinkage rate of the fabric can be kept between 0 and 0.4 percent under the condition of multiple times of washing, and compared with the transverse shrinkage rate of a product prepared by the traditional process, the transverse shrinkage rate of the fabric is 1 to 3 percent, the fabric has remarkable advantages, and therefore the daily use performance of the product is improved.

Other alternatives can be included in the invention of the application, but the alternatives are not preferred, the alternatives have low feasibility and high requirements on equipment, and the equipment is rarely available in the market, is not suitable for industrial production, and can influence the style and hand feeling of the existing products.

Although the present application has been described with reference to preferred embodiments, it is not intended to limit the present application. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the definition of the claims.

Claims

1. A preparation method of a plush fabric is characterized in that: the plush fabric comprises core yarns and face yarns, wherein the core yarns form a core yarn layer, and the core yarn layer is positioned between plush and loops formed by the face yarns; at least one of said core yarn layers satisfies: in a unit area, the core yarns are distributed and arranged in parallel along the same direction on the same transverse row and the number N of the core yarns covering the coils formed by the face yarns is more than or equal to 9, and the unit area is a rectangular area formed by two optional continuous transverse coils and two longitudinal coils of the face yarns;

the weaving process comprises a weaving step on a loom, wherein when weaving is carried out, the guide bar is i, i is more than or equal to 5 and less than or equal to 8; at least four guide bars are used for arranging the core yarn; for the guide bar GB ₁ Or guide bar GB _i The weaving process comprises the following steps:

N-N-N-N-N-N/ 0-0-0-0-0-0/ (N-1)-(N-1)-(N-1)-(N-1)-(N-1)-(N-1)/ 0-0-0-0-0-0//

Or N-N-N-N-N-N-N-N/0-0-0-0-0-0-0-0/(N-1) - (N-1) - (N-1) - (N-1) - (N-1) - (N-1) - (N-1) - (N-0-0-0/0-0-0-0-0

Or N- (N-1) - (N-1) - (N-1) - (N-1) - (N-1)/0-1-1-1-1-1/H/R

Or 1-1-1-N- (N-1) - (N-1)/(N-1) - (N-1) - (N-1) -0-1-1/H/R

Or N- (N-1) - (N-1) - (N-1) - (N-1) - (N-1) - (N-1) - (N-1)/0-1-1-1-1-1-1-1/H/cell

Or 1-1-1-1-N- (N-1) - (N-1) - (N-1)/(N-1) - (N-1) - (N-1) - (N-1) -0-1-1-1//.

2. The method for producing a plush fabric according to claim 1, characterized in that: the mass of the core yarn accounts for 30-50% of the total mass of the plush fabric.

3. The method for preparing a plush fabric as claimed in claim 1 or 2, characterized in that: the gram weight of the plush fabric is 300-650g/m ² 。

4. The method for preparing a plush fabric as claimed in claim 1, characterized in that: the titer of the core yarn is 45-166D or 32-120 ^S 。

5. The method for producing a plush fabric according to claim 1, characterized in that: the titer of the face yarn and the titer of the core yarn range from 1 to 4.

6. The method for preparing a plush fabric as claimed in claim 1, characterized in that: the core yarn is a differentiated filament or a bio-based fiber.

7. The method for producing a plush fabric according to claim 1, characterized in that: the pile length of the surface of the pile fabric is 3-15mm.

8. The method for producing a plush fabric according to claim 1, characterized in that: guide bar GB ₁ 、GB ₂ And GB _i-1 、GB _i For arranging the core yarn.