Yarn containing three-dimensional structure and production method thereof
Technical Field
The invention relates to the field of spinning, in particular to a yarn containing a three-dimensional structure and a preparation method thereof.
Background
In the prior art, the water-soluble vinylon fiber is applied more.
For example, patent 201810089492.4 provides a blended yarn and a method for making the same. The blended yarn comprises a water-soluble vinylon fiber component and a main fiber component which are mutually doped; the mass ratio of the water-soluble vinylon fiber component to the main fiber component is (5-80): 20-95). The blended yarn provided by the invention comprises the mutually doped water-soluble vinylon fiber component and the main fiber component, the water-soluble fiber is dissolved after the blended yarn is woven into the fabric, the internal space of the yarn is enlarged, more hollow points and grooves are generated, the linear density is reduced, and the static air is increased, so that the fabric is light and soft.
The invention further discloses a processing method of the thermal fabric as the 201711262532.2 patent, relating to a processing method of the thermal fabric, comprising the following steps: (1) the outer wrapping fiber is cotton fiber, the core-spun yarn is vinylon filament with high solubility and vinylon filament with low solubility, and then the raw yarn is made; spinning by adopting a ring spinning covering yarn process to obtain covering yarn; simultaneously spinning solid cotton yarn for later use by adopting the same drafting process; (2) weaving twill weaves of three upper twill weaves, one lower twill weaves and the warp arrangement and weft feeding sequence are both arranged at intervals by adopting core-spun yarns and solid cotton yarns to obtain the fabric; (3) carrying out water-soluble treatment on the obtained fabric to remove the fiber of the fabric, so as to obtain hollow yarns; and finally drying to obtain the thermal fabric.
Also for example, the utility model patent of 201720913586.X functional composite fabric discloses a functional composite fabric, which comprises a body and a functional layer on the surface of the body, wherein the body is composed of warp yarns and weft yarns, the warp yarns are formed by twisting tencel, wood fibers, cashmere and spun silk in a spiral shape, the weft yarns are formed by twisting vinylon fibers and viscose fibers together, and the fineness of the body is 18-25 tex. The utility model provides a functional composite fabric has far infrared's function, has gas permeability and the warmth retention that cotton, animal fiber had moreover, and is comfortable and easy to wear, does not have the side effect to the human body.
The invention patents and the utility model patents disclosed above have the disadvantage that the water-soluble vinylon used is of a two-dimensional plane structure, and is also of a plane structure after being blended into yarn, the hollow formed after subsequent dissolution is small, the hollow rate is far less than the large of a three-dimensional space, and the influence of the water-soluble vinylon on the air permeability and the heat retention property of the fabric is allegedly improved to be limited.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a yarn comprising a three-dimensional structure, a method for its preparation and its use, which solve the problems of the prior art.
To achieve the above objects and other related objects, the present invention is achieved by the following technical solutions.
The present invention provides a yarn having a three-dimensional structure, which is obtained by crimping a spun yarn containing at least two types of raw material fibers, wherein the raw material fibers of the yarn include at least a soluble fiber having a crimped three-dimensional structure and a second fiber.
Preferably, the soluble fiber comprises one or more of soluble polyester fiber, soluble alginate fiber, soluble carboxymethyl cellulose fiber, and soluble vinylon fiber.
The second fiber is a skeletal fiber that is insoluble relative to the soluble fiber and remains in the yarn or fabric after the soluble fiber dissolves away.
Preferably, the second fiber is selected from one or more of cotton fiber, nylon fiber, spandex fiber, acrylic fiber or wool fiber.
Preferably, the soluble fiber having a crimped three-dimensional structure accounts for 10 wt% to 50 wt% of the raw fiber. More preferably, the soluble fiber having a crimped three-dimensional structure is 10 to 30 wt% of the raw fiber
Preferably, the crimped three-dimensional structure of the soluble fiber comprises an S-shaped, helical, zigzag-shaped periodic or aperiodic structure.
Preferably, the soluble fiber comprises a fiber that is soluble in hot water, hot air, and a solvent. More preferably, the soluble fiber is vinylon fiber which is soluble in hot water at 30-100 ℃.
The soluble polyester fiber is soluble in an aqueous solution having a pH greater than 10.
The soluble alginate fiber is soluble in hot water of 60 deg.C or above.
The soluble carboxymethyl cellulose fiber is soluble in hot water above 60 ℃.
Preferably, the soluble fiber is a staple fiber.
Preferably, the soluble fiber is blown into a nozzle of a radial slit with hot air at high temperature and pressure to embed the fiber in the slit, set in the slit, and take a three-dimensional curled shape when exiting the nozzle.
Preferably, the number of the yarns is 10-200 English.
The invention provides a method for producing yarns containing three-dimensional structures, which comprises the following steps:
1) cotton blending, namely blending the raw material fibers;
2) opening and picking: further mixing and quantitatively coiling to obtain a cotton roll;
3) carding cotton: carding the raw sliver on a carding machine to obtain raw slivers;
4) drawing: performing three-pass drawing on a drawing frame to obtain cooked strips;
5) roving: drafting the mixture on a roving machine to form roving;
6) spinning: drafting on a spinning machine to form spun yarn;
7) curling treatment: and carrying out hot drying treatment on the spun yarn, wherein the hot drying temperature is 60-80 ℃.
Preferably, in the opening and picking process, the dry basis weight of the lap is 300 to 500 g/m.
Preferably, in the carding procedure, the weight of the raw sliver is 75-150 g/m.
Preferably, in the carding process, the licker-in speed is 700-900r/min, the cylinder speed is 200-400r/min, and the doffer speed is 15-30 r/min.
Preferably, in the drawing process, the cooked yarn quantity is 10-30g/5 m.
Preferably, in the roving process, the twist factor is 40-100.
Preferably, in the spinning step, the twist factor is 300 to 500.
Preferably, in the spinning step, the back draft ratio is 1.2 to 1.5.
The application also discloses a fabric prepared from the yarn.
The application also discloses a fabric obtained by removing the soluble fiber in the printing and dyeing process after the yarn is woven.
The technical scheme of the application has the following beneficial effects:
the invention discloses a yarn, which consists of two or more different fiber materials, wherein one or more soluble fibers exist in the materials of the yarn, the soluble fibers simultaneously have a curled non-flat three-dimensional structure, the fibers in the yarn become flat and straight through carding of textile equipment and application of longitudinal tension along the fiber direction in the spinning process of the yarn, but the fibers have the tendency of returning to a curled state, after the fiber spinning is finished, the longitudinal tension is released, the yarn retracts, the fibers recover or partially recover to the original three-dimensional curled state to generate a part of fluffy and soft effect, furthermore, the soluble fibers are dissolved off by the yarn under certain conditions, and more yarn stress release occurs to generate the further retraction fluffy and soft effect of the yarn due to the disappearance of the soluble curled fibers, meanwhile, due to the disappearance of the soluble crimped fibers, a space is generated in the yarn due to the disappearance of the soluble fibers, so that the fluffy softness of the fibers is further improved. Thereby producing a special soft yarn with a three-dimensional structure. The fabric made of the yarn has fluffy and soft hand feeling and excellent air permeability and moisture absorption performance.
Drawings
FIG. 1 shows a schematic of the structure of the soluble fiber at various stages of the present invention.
Wherein the content of the first and second substances,
a is the initial form
B is in a stretched state
C is in the form after spun yarn formation
D is the shape after the curling treatment.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It is to be understood that the processing equipment or apparatus not specifically identified in the following examples is conventional in the art.
Furthermore, it is to be understood that one or more method steps mentioned in the present invention does not exclude that other method steps may also be present before or after the combined steps or that other method steps may also be inserted between these explicitly mentioned steps, unless otherwise indicated; it is also to be understood that a combined connection between one or more devices/apparatus as referred to in the present application does not exclude that further devices/apparatus may be present before or after the combined device/apparatus or that further devices/apparatus may be interposed between two devices/apparatus explicitly referred to, unless otherwise indicated. Moreover, unless otherwise indicated, the numbering of the various method steps is merely a convenient tool for identifying the various method steps, and is not intended to limit the order in which the method steps are arranged or the scope of the invention in which the invention may be practiced, and changes or modifications in the relative relationship may be made without substantially changing the technical content. .
Example 1
Taking 40 yarns as an example, the soluble polyvinyl alcohol staple fibers with a three-dimensional spiral structure and the cotton fibers are blended and spun into yarns by a cotton spinning process, and the specific steps are as follows:
1. cotton blending: 20kg of soluble short fiber and 80kg of cotton fiber. The soluble short fiber is polyvinyl alcohol fiber soluble in hot water at 40 ℃.
2. Opening and picking: the opening and picking process comprises the following steps: the dry weight of the cotton roll is 420g/m, the weight of the cotton roll is 12kg, the speed of a carding wire roller is 500r/min, and the comprehensive beater is 750 r/min.
3. Carding cotton: the technological settings of the carding machine are as follows: the licker-in speed is 850r/min, the cylinder speed is 340r/min, and the doffer speed is 26 r/min; the weight of the raw strips was 100 g/m.
4. Drawing: drawing technological parameters are set as follows: the cooked strips are quantified at 18g/5m and the strip discharging speed is 250 m/min.
5. Roving: and (3) configuring the main technological parameters of the roving: the twist factor is 70 and the ingot speed is 750 r/min.
6. Spinning: the main process parameter configuration of the spinning process: the twist factor is 360; the distance between the jaws is 3.3 mm; the back draft multiple was 1.35.
7. Curling treatment: and (3) carrying out hot drying treatment on the spun yarn, wherein the hot drying treatment temperature is 80 ℃.
The various properties and indices of the yarn obtained in this application are as follows:
the moisture regain of the yarn is 9.2 percent
Twist factor 360
The cotton knot number is 15/g
Single strong 270CN
Evenness CV 10%.
The spun yarn is adopted to form 40 × 40/133 × 72 satin fabric, and the fabric manufactured through weaving, printing and dyeing has soft hand feeling and good heat retention performance.
Wherein, the soluble polyvinyl alcohol short fiber is dissolved under 60 ℃ hot water through a printing and dyeing water washing process. Taking eight sections of open width washing machines as an example, the method specifically comprises the following steps: 1-2 water-saving washing tank at 40 ℃, 3-6 water-saving washing tank at 60 ℃ and 7-8 water-saving washing tank at 40 ℃.
Example 2
Taking 60 yarns as an example, the soluble short fiber with a three-dimensional spiral structure and cotton are blended and spun into yarns by a cotton spinning process, and the specific steps are as follows:
1. cotton blending: the composition comprises the following components in parts by weight: 30kg of soluble short fibers and 70kg of long stapled cotton fibers. The soluble short fiber is polyvinyl alcohol fiber soluble in hot water at 60 ℃.
2. Opening and picking: the opening and picking process comprises the following steps: the dry weight of the cotton roll is 370g/m, the weight of the cotton roll is 10kg, the speed of a carding wire roller is 480r/min, and the comprehensive beater is 700 r/min.
3. Carding cotton: the technological settings of the carding machine are as follows: the licker-in speed is 750r/min, the cylinder speed is 300r/min, and the doffer speed is 22 r/min; the weight of the raw strips was 100 g/m.
4. Drawing: drawing technological parameters are set as follows: the cooked noodle quantity is 18g/5m, and the noodle discharging speed is 220 m/min.
5. Roving: and (3) configuring the main technological parameters of the roving: the twist factor is 70 and the ingot speed is 730 r/min.
6. Spinning: the main process parameter configuration of the spinning process: the twist factor is 380; the distance between the jaws is 3.4 mm; the back draft multiple was 1.4.
7. Curling treatment: and (3) carrying out hot drying treatment on the spun yarn, wherein the hot drying treatment temperature is 60 ℃.
In this embodiment, the properties and indexes of the spun yarn are as follows:
the moisture regain of the yarn is 9.0 percent
Twist multiplier 380
The number of cotton nodules is less than or equal to 10 grains/g
Single strong 240CN
The yarn levelness CV is less than or equal to 8 percent
The spun yarn is formed into 60 × 60/200 × 98 satin fabric, and the fabric manufactured through weaving, printing and dyeing has soft hand feeling, comfort and ventilation. Wherein the soluble short fiber is dissolved in hot water at 80 ℃ through a printing and dyeing water washing process. Taking eight sections of open width washing machines as an example, the method specifically comprises the following steps: 1-2 water-saving washing tank 60 ℃, 3-6 water-saving washing tank 80 ℃, and 7-8 water-saving washing tank 60 ℃.
Comparative example 1
The yarns obtained in example 2 were used to form a satin fabric 60 × 60/200 × 98, and the yarns were woven and printed to produce a fabric. But the soluble short fibers in the fabric are not retained by hot water treatment during printing and dyeing treatment.
Comparative example 2
The yarn obtained in step 6 of example 2 was used directly to form a satin fabric 60 × 60/200 × 98, without crimping. The rest is the same as in example 1.
The fabrics treated by the vinylon technology in the examples 1 and 2, the comparative examples 1 and 2 and the market are respectively detected, and the detected effects are shown in the following table.
Wherein, the hand feeling is detected and tested by a Fengbao instrument;
air permeability, obtained according to the GB/T5453-1997 textile fabric air permeability test;
the hygroscopicity of the fabric absorbs water vertically according to AATCC197-2013 Option B;
the thermal retention was tested according to the standard test method for thermal conductivity of ASTM D1518-14 Option1 textile materials.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.