Full-brocade knitted fabric without elastic fibers and with good elasticity and preparation method of full-brocade knitted fabric

Abstract

The invention relates to a full-brocade knitted fabric without elastic fibers and with good elasticity and a preparation method, the full-brocade knitted fabric comprises a fabric body, the fabric body is formed by weaving two-component chinlon through a double-sided dense needle scutching circular knitting machine according to set knitting needle arrangement and water chestnut arrangement, and two transverse loops and four longitudinal loops are used as pattern return. The fabric is formed by weaving different knitting needles and water caltrops in an arrayed mode, elastic fibers are not added into the fabric, and meanwhile the fabric has the property of a product added with the elastic fibers.

Description

Technical Field

[0001] The present invention relates to the field of textiles, in particular to a fully nylon knitted fabric without elastic fibers and having good elasticity and a preparation method thereof. Background Art

[0002] Knitted fabrics are made of natural fibers, chemical fibers, etc. as raw materials for yarns. Using loop-forming tissues, float tissues, tuck tissues, transfer tissues, etc., on various weft knitting machines, the yarns are bent into loops in the horizontal direction by knitting needles and strung together to form fabrics. With the continuous progress of technology and the continuous improvement of people's living standards, the requirements for wearing are getting higher and higher. Not only does the fabric need to have good elasticity, but also the fabric does not contain added elastic fibers. However, most of the fabrics with good elasticity on the market contain added elastic fibers. Therefore, there is an urgent need to design a product that does not contain added elastic fibers and whose elasticity can achieve the effect of adding elastic fibers. Summary of the Invention

[0003] The purpose of the present invention is to provide a fully nylon knitted fabric without elastic fibers and having good elasticity and a preparation method thereof, which can have the properties of a product with added elastic fibers while not adding elastic fibers.

[0004] To achieve the above object, the present invention provides the following technical solution: A fully nylon knitted fabric without elastic fibers and having good elasticity, including a fabric body, the fabric body is woven by a double-component nylon on a double-sided close-needle open-width circular knitting machine according to a set knitting needle arrangement and diamond arrangement, with 2 horizontal row coils and 4 vertical row coils as a pattern return.

[0005] Further, the 2 horizontal row coils are in return: The knitting needles on the upper needle plate are arranged from left to right as 2nd-level needles and 1st-level needles in sequence, with a total of 2 needles as one return. The knitting needles on the lower needle cylinder are arranged from left to right as 1st-level needles and 2nd-level needles in sequence, with a total of 2 needles as one return.

[0006] Further, the 4 vertical row coils are in return: The 1st row: upper needle plate float diamond, upper needle plate loop-forming diamond, lower needle cylinder loop-forming diamond, lower needle cylinder float diamond; The 2nd row: upper needle plate loop-forming diamond, upper needle plate float diamond, lower needle cylinder float diamond, lower needle cylinder loop-forming diamond; The 3rd row: upper needle plate float diamond, upper needle plate float diamond, lower needle cylinder loop-forming diamond, lower needle cylinder loop-forming diamond; The 4th row: upper needle plate loop-forming diamond, upper needle plate loop-forming diamond, lower needle cylinder float diamond, lower needle cylinder float diamond.

[0007] Further, the two-component polyamide fiber includes micro-porous polyamide filament and waterproof polyamide filament. The filament fineness of the micro-porous polyamide filament is 50-140D, and the number of fine filament holes is 24-72F. The filament fineness of the waterproof polyamide filament is 40-140D, and the number of fine filament holes is 24-72F.

[0008] A manufacturing method of an inelastic fiber and highly elastic all-polyamide knitted fabric, comprising a knitting process, a water washing and degreasing and pre-setting process, a dyeing process, a post-treatment process and a setting process; The knitting process: It is knitted by a double-sided close-needle open-width circular knitting machine with two-component polyamide fiber according to the set knitting needle arrangement and diamond arrangement. With 2 horizontal row coils and 4 vertical row coils as the pattern return, a grey fabric is knitted. The water washing and degreasing and pre-setting process: After the grey fabric knitting is completed, it is continuously washed and degreased in a flat width, and then pre-set after completion; The dyeing process: Down-flow overflow dyeing vat; The post-treatment and setting process: Add a moisture management agent for post-treatment, at a temperature of 40-70°C, run for 10-20 minutes and then perform setting to obtain a double-sided jacquard knitted fabric.

[0009] Further, in the knitting process, the 1st and 3rd paths simultaneously feed in micro-porous polyamide filaments, the fineness of the polyamide filaments is 50-140D, and the number of fine filament holes is 24-72F. The 2nd and 4th paths simultaneously feed in waterproof polyamide filaments, the fineness of the polyamide filaments is 40-140D, and the number of fine filament holes is 24-72F, and a grey fabric is knitted.

[0010] Further, the temperature of the water washing and degreasing is 80-95°C, and the machine speed is 10-30m / min; the temperature of the pre-setting is 130-160°C, and the machine speed is 18-25m / min.

[0011] Further, the temperature in the dyeing process is 95-105°C, and the running time is 30-60 minutes.

[0012] Further, the content of the moisture management agent in the post-treatment and setting process is 2-4G / L, the temperature of the setting is 130-150°C, and the machine speed is 18-40m / min.

[0013] The beneficial effects of the present invention: Through a double-sided close-needle open-width circular knitting machine, two kinds of knitting needles and 4 different diamond arrangements, the two-component polyamide filaments are knitted into a jacquard double-sided fabric. Through different knitting needles and diamond arrangements, the fabric has the properties of a product with elastic fibers added while no elastic fibers are added. Description of the Drawings

[0014] Figure 1 It is the knitting diagram of the structure of the present invention; Figure 2 This is the knitting needle arrangement diagram of the present invention; Figure 3 This is the water chestnut arrangement diagram of the present invention; Figure 4 This is the fabric test result diagram of the present invention; Figure 5 This is the schematic diagram of the fabric structure of the present invention. Detailed implementation manners

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Please refer to Figures 1 to 5 , the present invention provides an embodiment: a fully nylon knitted fabric without elastic fibers and having good elasticity, including a fabric body, the fabric body is knitted by a two-component nylon on a double-sided close-needle open-width circular knitting machine according to a set knitting needle arrangement and water chestnut arrangement, with 2 horizontal row coils and 4 vertical row coils as a pattern return.

[0017] Please continue to refer to Figure 2 As shown, in an embodiment of the present invention, the 2 horizontal row coils are the return: The knitting needles on the upper needle plate are arranged from left to right in sequence as grade 2 needles and grade 1 needles, with a total of 2 needles as one return. The knitting needles on the lower needle cylinder are arranged from left to right in sequence as grade 1 needles and grade 2 needles, with a total of 2 needles as one return.

[0018] Please continue to refer to Figure 3 As shown, in an embodiment of the present invention, the 4 vertical row coils are the return: The 1st row: upper needle plate floating water chestnut, upper needle plate forming water chestnut, lower needle cylinder forming water chestnut, lower needle cylinder floating water chestnut; The 2nd row: upper needle plate forming water chestnut, upper needle plate floating water chestnut, lower needle cylinder floating water chestnut, lower needle cylinder forming water chestnut; The 3rd row: upper needle plate floating water chestnut, upper needle plate floating water chestnut, lower needle cylinder forming water chestnut, lower needle cylinder forming water chestnut; The 4th row: upper needle plate forming water chestnut, upper needle plate forming water chestnut, lower needle cylinder floating water chestnut, lower needle cylinder floating water chestnut.

[0019] Please continue to refer to Figures 1 to 5 As shown, in an embodiment of the present invention, the two-component nylon includes micro-porous nylon filament and waterproof nylon filament. The filament fineness of the micro-porous nylon filament is 50 - 140D, and the number of fine filament holes is 24 - 72F. The filament fineness of the waterproof nylon filament is 40 - 140D, and the number of fine filament holes is 24 - 72F.

[0020] Please refer to Figures 1 to 5, the present invention provides an embodiment: a method for manufacturing an elastic full-polyester knitted fabric without elastic fibers, including a knitting process, a water washing and degreasing and pre-setting process, a dyeing process, a post-treatment process, and a setting process; The knitting process: It is knitted by a double-component polyamide through a double-sided close-needle open-width circular knitting machine according to the set knitting needle arrangement and diamond arrangement, with 2 horizontal row coils and 4 vertical row coils as the pattern return, and the grey fabric is knitted; The water washing and degreasing and pre-setting process: After the grey fabric knitting is completed, it is continuously flat-width water washed and degreased, and then pre-set after completion; The dyeing process: Down-flow overflow cylinder dyeing; The post-treatment and setting process: Add a moisture absorption and drainage aid for post-treatment, at a temperature of 40 - 70 °C, run for 10 - 20 min and then set to obtain a double-sided jacquard knitted fabric.

[0021] Please continue to refer to Figures 1 to 5 As shown, in an embodiment of the present invention, in the knitting process, the 1st and 3rd paths simultaneously feed micro-porous polyamide filaments, the fineness of the polyamide filaments is 50 - 140 D, the number of fine filaments is 24 - 72 F, and the 2nd and 4th paths simultaneously feed waterproof polyamide filaments, the fineness of the polyamide filaments is 40 - 140 D, the number of fine filaments is 24 - 72 F, and the grey fabric is knitted.

[0022] Please continue to refer to Figures 1 to 5 As shown, in an embodiment of the present invention, the temperature of the water washing and degreasing is 80 - 95 °C, and the machine speed is 10 - 30 m / min; the temperature of the pre-setting is 130 - 160 °C, and the machine speed is 18 - 25 m / min.

[0023] Please continue to refer to Figures 1 to 5 As shown, in an embodiment of the present invention, the temperature in the dyeing process is 95 - 105 °C, and the running time is 30 - 60 min.

[0024] Please continue to refer to Figures 1 to 5 As shown, in an embodiment of the present invention, the content of the moisture absorption and drainage aid in the post-treatment and setting process is 2 - 4 G / L, the temperature of the setting is 130 - 150 °C, and the machine speed is 18 - 40 m / min. Specific Example 1:

[0025] Knitting process: S1. Select a 28 - 36 needle 34-inch double-sided close-needle open-width circular knitting machine; S2. In the selected circular knitting machine for the fabric body, select the yarn, the 1st and 3rd paths simultaneously feed micro-porous polyamide filaments 70 D / 48 F, the 2nd and 4th paths simultaneously feed waterproof polyamide filaments 40 D / 24 F, and knit according to the knitting needle arrangement, diamond arrangement, and method to obtain the fabric body; S3. Dye and finish the obtained fabric body. The process flow of the post-dyeing and finishing process is degreasing by water washing, pre-setting, dyeing, post-treatment, and setting.

[0026] S34. a. Continuous flat-width degreasing by water washing is carried out under the conditions of a temperature of 80 - 95 °C and a machine speed of 10 - 30 m / min.

[0027] b. Pre-setting is carried out under the conditions of a temperature of 130 - 160 °C and a machine speed of 18 - 25 m / min.

[0028] c. Down-flow overflow vat dyeing is carried out under the conditions of a temperature of 95 - 105 °C and a running time of 30 - 60 min.

[0029] d. Post-treatment is carried out by adding 2 - 4 g / L of suction and drainage aids, under the conditions of a temperature of 40 - 70 °C and a running time of 10 - 20 min.

[0030] e. Post-setting is carried out under the conditions of a temperature of 130 - 150 °C and a machine speed of 18 - 40 m / min. The fabric off-machine specification is 150 - 250 g / m 2 . Example 2:

[0031] Compared with Example 1, the difference is that in the 1st and 3rd paths, micro-porous polyamide filament 100D / 36F is fed simultaneously, and in the 2nd and 4th paths, waterproof polyamide filament 40D / 24F is fed simultaneously. Others are substantially the same as in Example 1.

[0032] Comparative Example 1: Compared with Example 1, the difference is that in the 1st and 3rd paths, ordinary polyamide is fed, and in the 2nd and 4th paths, spandex is fed. Others are substantially the same as in Example 1.

[0033] Comparative Example 2: Compared with Example 1, the difference is that in the 1st and 3rd paths, ordinary polyamide is fed, and in the 2nd and 4th paths, ordinary polyamide is fed. Others are substantially the same as in Example 1.

[0034] In the case of no spandex added, the elasticity of ordinary polyamide is similar to that of micro-porous and waterproof polyamide, and it is not very good. From Figure 3It can be seen that among the spandex-free fabrics, under the LTD03 test, the weft elasticity of the fabric of the present invention exceeds 110%, the warp elasticity exceeds 85%, and the recovery rate is over 85%. This indicates that the elasticity and recovery performance of this fabric, i.e., the fabric of the present invention, are good, and the upper body effect is comfortable and tight. Comparing with the fabric of Comparative Example 1 with an elasticity of 80% and a recovery rate of 84%, there is not much difference in performance from those of Example 1 and Example 2. Comparing with the fabric of Comparative Example 2 with a recovery rate of 74%, it can be seen that the recovery rate of ordinary all-polyester fabrics is basically below 80%, and the elasticity is much worse than that of the two-component fabric of the present invention.

[0035] The above are only the preferred embodiments of the present invention, and should not be construed as limitations to this application. Any equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims

1. A full-brocade knitted fabric with inelastic fibers and good elasticity, characterized by: The invention comprises a fabric body, wherein the fabric body is made of two-component nylon and woven by a double-sided dense needle open-width large circular machine according to a set knitting needle arrangement and a diamond angle arrangement, and has a pattern return of 2 horizontal rows of coils and 4 longitudinal coils.

2. The inelastic fiber and good elastic full brocade knitted fabric and its preparation method according to claim 1, characterized in that: The two rows of coils are return positions: The knitting needles are arranged from left to right in the upper needle dial as level 2 needles and level 1 needles, with a total of 2 needles for 1 return position, and the knitting needles are arranged from left to right in the lower needle cylinder as level 1 needles and level 2 needles, with a total of 2 needles for 1 return position.

3. The inelastic fiber and good elastic full brocade knitted fabric according to claim 1, characterized in that: The 4 longitudinal coils are return coils: Route 1: upper needle disc floating line water chestnut, upper needle disc circle water chestnut, lower needle cylinder circle water chestnut, lower needle cylinder floating line water chestnut; Route 2: upper needle disc circle water chestnut, upper needle disc floating line water chestnut, lower needle cylinder floating line water chestnut, lower needle cylinder circle water chestnut; Route 3: upper needle disc floating line water chestnut, upper needle disc floating line water chestnut, lower needle cylinder circle water chestnut, lower needle cylinder circle water chestnut; Route 4: upper needle dial forms a circle with water chestnuts, upper needle dial forms a circle with water chestnuts, lower needle cylinder forms a floating line with water chestnuts, lower needle cylinder forms a floating line with water chestnuts.

4. The inelastic fiber and good elastic full brocade knitted fabric according to claim 1, characterized in that: The two-component nylon includes microporous nylon filaments and waterproof nylon filaments. The filament fineness of the microporous nylon filaments is 50-140D, and the number of filament holes is 24-72F. The filament fineness of the waterproof nylon filaments is 40-140D, and the number of filament holes is 24-72F.

5. A method for producing a fully knitted fabric having good elasticity and without elastic fibers applicable to claim 1, Features: It includes weaving process, water washing and degreasing and pre-setting process, dyeing process, post-treatment process and setting process; The weaving process is as follows: using two-component nylon to weave through a double-sided dense needle open-width large circular knitting machine according to a set needle arrangement and a water chestnut angle arrangement, with 2 horizontal rows of coils and 4 longitudinal coils as a pattern return position to weave the grey cloth; The water washing, degreasing and pre-forming process: after the grey cloth is woven, it is continuously washed and degreased in open width, and then pre-formed; The dyeing process: dyeing with a downward overflow cylinder; The post-treatment and shaping process comprises adding an adsorption and discharge auxiliary agent for post-treatment, running at a temperature of 40-70° C. for 10-20 minutes, and then shaping to obtain a double-sided jacquard knitted fabric.

6. The method for making a fully knitted fabric with inelastic fibers and good elasticity according to claim 5, characterized in that: In the weaving process, microporous nylon filaments are fed into the 1st and 3rd paths simultaneously, the fineness of the nylon filaments is 50-140D, and the number of filament holes is 24-72F. Waterproof nylon filaments are fed into the 2nd and 4th paths simultaneously, the fineness of the nylon filaments is 40-140D, and the number of filament holes is 24-72F, and the grey cloth is woven.

7. The method for making a fully knitted fabric with inelastic fibers and good elasticity according to claim 5, characterized in that: The temperature of the water washing and oil removal is 80-95°C, and the machine speed is 10-30m / min; the temperature of the pre-forming is 130-160°C, and the machine speed is 18-25m / min.

8. The method for making a fully knitted fabric with inelastic fibers and good elasticity according to claim 5, characterized in that: The temperature in the dyeing process is 95-105° C. and the operation time is 30-60 minutes.

9. The method for making a fully knitted fabric with inelastic fibers and good elasticity according to claim 5, characterized in that: The content of the suction and discharge auxiliary agent in the post-treatment and shaping process is 2-4G / L, the shaping temperature is 130-150°C, and the machine speed is 18-40m / min.

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