Soft, glutinous and elastic velvet fabric with smooth surface and preparation method of soft, glutinous and elastic velvet fabric

Abstract

The invention relates to the technical field of textile fabrics, and particularly discloses a soft, glutinous and elastic velvet fabric with a smooth surface and a preparation method of the soft, glutinous and elastic velvet fabric. The method comprises the following steps: S1, weaving MODAL yarns with low density and low twist, polyester and spandex to obtain a fabric; s2, pre-shaping the fabric under the action of high temperature; s3, raising finishing: raising finishing is performed on the surface of the fabric, and then flame treatment is performed; s4, the fabric is placed in a dye vat for dyeing treatment, and meanwhile bio-enzyme is added for polishing treatment; s5, the fabric is placed in an oil cylinder to be subjected to forming and softening treatment; and S6, washing and finishing the fabric by using biological enzyme. The fabric has fine, soft and glutinous hand feeling, is light in weight and breathable, and has the experience of no burden on wearing in the sports process; the cloth cover is raised through the special finishing process, and then through singeing, bio-enzyme polishing and enzyme washing, the cloth is more skin-friendly, smooth and high-grade, has a fluffy feeling when being touched and has a sticky feeling that fluff cannot be seen actually, and forms a special frost feeling effect.

Description

Technical Field

[0001] The invention relates to the technical field of textile fabrics, and particularly discloses a soft, glutinous, elastic, smooth and velvety fabric and a preparation method thereof. Background Art

[0002] The napping process of textile fabrics is a processing technology that produces fine fluff on the surface of the fabric through physical or chemical methods, aiming to improve the softness and comfort of the fabric. This process is widely used in home textiles, clothing and industrial textiles, especially for products that require good touch and visual texture, such as plush toys, plush jackets, sportswear, etc.

[0003] For example, patent 202110205777.1 discloses a pure cotton fabric with high-density warm cotton finishing and its manufacturing method. The patent uses specific weaving processes, singeing, roller dyeing, drying, pre-stretching, sanding, brushing, enzyme washing and drying to make the fabric fluff uniform and dense, and the cloth surface has a "peach skin" effect, producing a comfortable warm velvet fabric suitable for autumn and winter. However, due to its high density and fluff structure, it has poor air permeability and elasticity, and the "peach skin" fabric feels prickly to the touch, which is not suitable as a sports fabric for close-fitting wear.

[0004] In recent years, as more and more people pay attention to and join the ranks of sports, the requirements for sportswear have become increasingly stringent. Clean fabric, soft and elastic feel, light weight, skin-friendly, etc. are the key items that everyone pays attention to. The current market can basically only meet one or several of these items. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a soft, elastic, smooth and velvety fabric and a preparation method thereof.

[0006] On the one hand, the present invention provides a method for preparing a soft, elastic, smooth and velvety fabric, which adopts the following technical scheme:

[0007] A method for preparing a soft, elastic, smooth and velvety fabric comprises the following steps:

[0008] S1, yarn weaving embryo, using low-density needle count of 20-22G and low twist MODAL yarn with TPI of 22.3-26.5, polyester and spandex to weave to obtain fabric;

[0009] S2, pretreatment, pre-shaping the fabric by high temperature to make the fabric pre-shrink in advance;

[0010] S3, raising finishing, raising the surface of the fabric, and then flame treatment to burn off the long fluff on the surface of the fabric;

[0011] S4, dyeing, placing the fabric in a dyeing vat for dyeing, and adding bio-enzyme polishing to remove the short fluff on the surface of the fabric;

[0012] S5, forming, placing the fabric in the oil cylinder for forming and softening;

[0013] S6, enzyme washing, using biological enzymes to wash and finish the fabrics.

[0014] The fabric is obtained by weaving MODAL yarn, polyester and spandex with low-density needle count and low twist, making the fabric soft and elastic. The pile treatment forms fluff on the fabric surface. The low twist yarn count is conducive to sufficient pile raising and obtaining denser fluff. The low density needle count helps to dye the fabric evenly and avoid crease problems caused by the fluff on the surface affecting the flatness after pile raising. After the pile raising treatment, the long fluff is first removed by flame treatment to make the fabric surface have a micro-pile feel. Then, while dyeing, bio-enzyme polishing treatment is carried out to remove the short and messy fluff on the fabric surface, making the fabric surface smooth and glutinous. After the softening treatment, enzyme washing is carried out again to make the fabric surface smoother and more "frosty", that is, it feels velvety to the touch, but the fluff is actually invisible. Rich and extremely short fluff is retained between the gaps between the yarns of the fabric, making the fabric feel dense enough, while the fabric surface is clean, soft, glutinous, elastic, lightweight, breathable, and anti-snagging, which is particularly suitable as a sports fabric.

[0015] Preferably, in S1, 50S / 1 MODAL yarn, 75D cross-section polyester and 30D elastic spandex are used for weaving, and the MODAL yarn accounts for 33% to 35% of the fabric, the polyester yarn accounts for 58% to 60%, and the spandex yarn accounts for 5% to 7%.

[0016] Preferably, the TPI of the MODAL yarn is 25.2. TPI refers to the number of twists per unit area and can be used to reflect the twist of the yarn.

[0017] By adopting the above technical solution, considering that if the twist of MODAL yarn is too high, it will not be soft enough, and if the twist is too low, the strength will be insufficient, and it will be easy to be damaged or snagged during raising. Therefore, when the TPI of MODAL yarn is 25.2, the fabric is guaranteed to have a "frost feeling" effect while being the softest, skin-friendly and elastic.

[0018] Preferably, in S1, a 22G knitting machine is used and air layer weaving method is adopted for weaving.

[0019] By adopting the above technical solution, considering that high-density needle counts are prone to creases and unevenness during dyeing, and too low needle counts may be damaged during pile raising and finishing, when the yarn density is 22G, the fabric will have better effect in the pile raising and dyeing process, and at the same time, the fabric will have a certain thickness and a Q-elastic touch.

[0020] Preferably, in S2, the fabric is pre-shaped at 200° C. for 2 minutes to pre-shrink the fabric in advance.

[0021] By adopting the above technical solution, high-temperature shrinkage is first performed and then pile treatment is performed, which is conducive to making the fabric size more stable and avoiding dimensional deformation of the soft fabric during the pile raising process. In addition, the pile raising of the shrunk fabric can make the pile more uniform and avoid the messy exposure of the pile due to subsequent uneven shrinkage, which is not conducive to the full removal of long and short pile on the surface.

[0022] Preferably, in S3, a carbon brush is used to raise the fabric, wherein the speed of the brushing machine is 15M / MIN, the rotation speed of the large cylinder is 20M / MIN, the cloth feeding tension is 6KG, the cloth outlet tension is 8KG, the brush tension is 6KG, and the brush rotation speed is 1200 rpm.

[0023] By adopting the above technical solutions, carbon brush raising will not damage the structure of soft fabrics woven with low twist, low needle density MODAL yarn, polyester and elastic spandex compared to sandpaper / steel brush raising. The raising effect is denser and the velvet feel is stronger.

[0024] Preferably, in S4, 0.5 G / L of bio-enzyme polishing is used, the in-cylinder temperature is 40° C. for 120 min, and the circulating speed is 40 M / MIN.

[0025] Preferably, in S5, 4kg / L of silicone oil and 15kg / L of soft oil are added during molding for in-cylinder softening, the temperature of the oil slurry tank is 70℃~80℃, the fabric passes through the slurry tank at a speed of 17M / MIN, and the cloth pressing roller presses the oil evenly and fully on the fabric with a force of 28N.

[0026] Preferably, in S6, 2G / L of biological enzyme is used for washing and finishing, the washing temperature is 40℃~60℃, the washing time is 3h~4h, and after washing, 3G / L~10G / L of NaOH solution is used to inactivate the enzyme, followed by 2 water washes, and finally washed with HAC at a temperature of 40℃~60℃ for 5MIN-15MIN to a neutral environment.

[0027] By adopting the above technical scheme, 0.5G / L of biological enzyme polishing treatment is first used to wash away the residue after singeing and preliminarily remove the short hair, and then silicone oil and soft oil are used for softening treatment, so that the short hair that has not been fully removed by singeing is fully exposed and expanded during the softening process, and finally 2G / L of biological enzyme is used for secondary treatment, so that the surface of the fabric is smooth without peach hair effect, forming a special "frost feeling" effect visually.

[0028] On the other hand, the present invention protects a soft, elastic, smooth and velvety fabric, which is obtained by the above-mentioned preparation method.

[0029] Compared with the prior art, the present invention has at least the following beneficial effects:

[0030] The present invention adopts a combination of ultra-fine MODAL, polyester and spandex with low twist and low density needle count to make the fabric have a delicate and soft feel, and is lightweight and breathable, so that there is a burden-free wearing experience during exercise; a special finishing process makes the cloth surface velvety, and then through singeing, bio-enzyme polishing and enzyme washing, the cloth is made more skin-friendly, smooth and high-end, with a velvety feel to the touch, but the velvety feeling is not actually visible, forming a special "frost feeling" effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a comparison diagram under a microscope between the soft, elastic, smooth velvety fabric of Example 1 and the peach skin fabric on the market. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] A method for preparing a soft, elastic, smooth and velvety fabric comprises the following steps:

[0035] S1, yarn weaving embryo, using 50S / 1 MODAL yarn, 75D cross-section polyester and 30D elastic spandex, using 22G FUKUHABA knitting machine, and using air layer weaving method to obtain fabric;

[0036] S2, pretreatment, pre-setting the fabric at 200℃ for 2 minutes to pre-shrink the fabric in advance;

[0037] S3, napping finishing, use a carbon brush to raise the fabric, and then use flame treatment to burn off the long nap on the surface of the fabric; the speed of the brushing machine is 15M / MIN, the speed of the large cylinder is 20M / MIN, the cloth feeding tension is 6KG, the cloth outlet tension is 8KG, the brushing tension is 6KG, and the brush speed is 1200 rpm;

[0038] S4, dyeing, placing the fabric in a dyeing vat for dyeing, adding 0.5G / L of bio-enzyme for polishing to remove the short fluff on the surface of the fabric, the vat temperature is 40°C for 120min, and the cycle speed is 40M / MIN;

[0039] S5, molding, placing the fabric in the oil cylinder for molding treatment, adding 4kg / L silicone oil and 15kg / L soft oil for softening in the cylinder, the temperature of the oil tank is 70℃~80℃, the fabric passes through the tank at a speed of 17M / MIN, and the cloth pressing roller uses a force of 28N to make the oil agent evenly and fully impregnate the fabric;

[0040] S6, enzyme washing, use 2G / L biological enzyme to wash and finish the fabric, the washing temperature is 40℃~60℃, the washing time is 3h~4h, after washing, use 3G / L~10G / L NaOH solution to inactivate the enzyme, then wash twice, and finally wash with HAC at 40℃~60℃ for 5MIN-15MIN to a neutral environment.

[0041] In step S1, the needle track accessories are configured as shown in Table 1 below:

[0042] Table 1

[0043]

[0044] Among them, “﹀” indicates that the dial needle forms a loop, “︿” indicates that the cylinder needle forms a loop, “─” indicates no knitting, “ㄩ” indicates that the dial needle forms a loop, and “ㄇ” indicates that the cylinder needle forms a loop.

[0045] Comparative Example 1

[0046] A velvet fabric, wherein step S1 is the same as that of embodiment 1, except that:

[0047] S2, placing the fabric in a dyeing vat for dyeing;

[0048] S3, raising finishing, using a carbon brush to raise the fabric;

[0049] S4, enzyme washing, using biological enzymes to wash and finish the fabrics.

[0050] S5. Place the fabric in an oil cylinder for molding and softening.

[0051] The finished fabrics obtained by the above embodiments and comparative examples were tested for hand feel. The "RHV value" of the fabric usually refers to the relative hand value (Relative Hand Value), which is an objective indicator for measuring the hand feel of the fabric. In the textile industry, the RHV value is measured by a specific hand-feeling instrument. It reflects the hand feel characteristics of the fabric, such as softness, smoothness, and elasticity. The higher the RHV value, the better the hand feel of the fabric, and the closer it is to the ideal hand feel effect. The "Softness value" of a fabric usually refers to the softness of the fabric, which describes the deformation ability and touch of the fabric when subjected to external forces. The "Smoothness value" of a fabric refers to the smoothness of the fabric, which describes the characteristics of the surface friction of the fabric, that is, the surface resistance caused by sliding.

[0052] Table 2

[0053]

[0054] The hand feel style instrument comparison data of the fabric of Example 1 made by the frosty fabric process of the present invention and the fabric of Comparative Example 1 made by imitating the peach skin fabric process on the market are shown in the above table. It is generally believed that there is a difference between the two when the RHV value differs by 0.5.

[0055] It can be seen from Table 2 that the fabric prepared by the process of the present invention has advantages over peach skin fabric in both softness and smoothness. Figure 1 It can be seen that when compared with peach skin fabric under a microscope with a magnification of 20 times, the surface of peach skin fabric has obvious fuzz, while the fabric of the present invention has almost no fuzz, that is, the so-called "frost feeling".

[0056] In addition, the fabric of Example 1 prepared by the frost-feel fabric process of the present invention was subjected to finished fabric pilling and anti-snagging tests. The anti-pilling test was conducted according to the Martindale method of GB / T 4802.2-2008 at 2500 rpm, and the results showed that the back side was level 4. The anti-snagging test was conducted according to GB / T11047-2008, and the results showed that the vertical direction was level 3-4 and the horizontal direction was level 4, which met the standards for sports fabrics.

[0057] The technical solution provided by the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A method for preparing a soft, elastic, smooth and velvety fabric, characterized in that: The following steps are involved: S1, yarn weaving embryo, using low-density needle count of 20 to 22G and low twist MODAL yarn with TPI of 22.3 to 26.5, polyester and spandex to weave to obtain fabric; S2, pretreatment, pre-shaping the fabric by high temperature to make the fabric pre-shrink in advance; S3, raising the napping treatment, raising the napping treatment on the surface of the fabric, and then burning the long nap on the surface of the fabric with flame treatment; S4, dyeing, placing the fabric in a dyeing vat for dyeing, and adding bio-enzyme polishing to remove the short fluff on the surface of the fabric; S5, forming, placing the fabric in the oil cylinder for forming and softening; S6, enzyme washing, using biological enzymes to wash and finish the fabrics.

2. The method for preparing the soft, elastic, smooth and velvety fabric according to claim 1, characterized in that: In the S1, 50S / 1 MODAL yarn, 75D cross-section polyester and 30D elastic spandex are used for weaving, and the MODAL yarn accounts for 33% to 35% of the fabric, the polyester yarn accounts for 58% to 60%, and the spandex yarn accounts for 5% to 7%.

3. The method for preparing the soft, elastic, smooth and velvety fabric according to claim 2, characterized in that: The MODAL yarn had a TPI of 25.

2.

4. The method for preparing a soft, elastic, smooth and velvety fabric according to claim 1, characterized in that: In the S1, a 22G knitting machine is used to weave the fabric using an air layer weaving method.

5. The method for preparing a soft, elastic, smooth and velvety fabric according to claim 1, characterized in that: In S2, the fabric is pre-shaped at 200° C. for 2 minutes to pre-shrink the fabric in advance.

6. The method for preparing a soft, elastic, smooth and velvety fabric according to claim 1, characterized in that: In S3, a carbon brush is used to raise the fabric, wherein the brushing machine speed is 15M / MIN, the large cylinder speed is 20M / MIN, the cloth inlet tension is 6KG, the cloth outlet tension is 8KG, the brush tension is 6KG, and the brush speed is 1200 rpm.

7. The method for preparing a soft, elastic, smooth and velvety fabric according to claim 1, characterized in that: In S4, 0.5 G / L of bio-enzyme polishing treatment is used, the in-cylinder temperature is 40° C. for 120 min, and the circulating speed is 40 M / MIN.

8. The method for preparing a soft, elastic, smooth and velvety fabric according to claim 1, characterized in that: In the S5, 4kg / L of silicone oil and 15kg / L of soft oil are added during molding for in-cylinder softening. The temperature of the oil agent slurry tank is 70°C to 80°C. The fabric passes through the slurry tank at a speed of 17M / MIN. At the same time, the cloth pressing roller uses a force of 28N to evenly and fully impregnate the oil agent on the fabric.

9. The method for preparing a soft, elastic, smooth and velvety fabric according to claim 1, characterized in that: In the S6, 2G / L of biological enzyme is used for washing and finishing, the washing temperature is 40℃~60℃, the washing time is 3h~4h, and after washing, 3G / L~10G / L of NaOH solution is used to inactivate the enzyme, followed by 2 water washes, and finally, HAC is used to wash at a temperature of 40℃~60℃ for 5MIN-15MIN to a neutral environment.

10. A soft, elastic, smooth and velvety fabric, characterized in that: The fabric is obtained by the method for preparing the soft, elastic, smooth and velvety fabric according to any one of claims 1 to 9.

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