Manufacturing method of 32-count cotton cover T400 / 150D / FDY single jersey cotton nano silk fabric

Abstract

The invention relates to a manufacturing method of 32-count cotton cover T400 / 150D / FDY single jersey cotton nano silk fabric. 32 all-cotton yarns are adopted as surface yarns, T400 / 150D / FDY is adopted as bottom yarns, the stretching and recovery performance is good, the breaking strength is larger than or equal to 3.5 cN / dtex, the initial modulus is larger than or equal to 900 cN / dtex, the stretching rate is larger than or equal to 160%, and the stretching recovery rate is larger than or equal to 90%. The fabric is manufactured by a 20-needle, 22-needle or 24-needle single-side weaving machine, and grey cloth is dyed and then passes through the temperature of less than or equal to 165 DEG C or the speed of a setting machine is 20 yards or the speed of the setting machine is 28 yards at 180 DEG C. The setting can be directly used for manufacturing clothes. The raw materials comprise PBT or iPBT and PET with low cyclic oligomer content, and are environment-friendly and endowed with unique performance. According to the T400 / 150D / FDY structure, the cross section shapes are diversified, and the performance index deviation rate is strictly controlled. The fabric manufactured by the method is excellent in performance and stable in quality, the manufacturing process is flexible and mild, the product application is wide, and more innovation possibilities are brought to clothing manufacturing.

Description

Technical Field

[0001] The invention relates to a method for manufacturing a 32-count cotton-covered T400 / 150D / FDY single jersey cotton nanosilk fabric. Background Art

[0002] T400 / 150D / FDY silk is woven into the reverse side of the jersey, which has the characteristics of shaping and high resilience memory, replacing the spandex added to traditional cotton yarn or blended yarn fabrics to achieve elastic and permanent plasticity of the clothes. Spandex jersey has the problem of loosening and deformation after long washing, and the finished fabric woven with T400 / 150DFDY only needs to be dried at low temperature to save energy. The finished product can save one pre-shrinkage process after piece assembly. This fabric can automatically shrink to the minimum shrinkage, and the garment factory does not need to loosen the cloth in advance and can directly cut it, saving time and workload. Summary of the invention

[0003] The object of the present invention is to provide a method for producing a 32-count cotton-covered T400 / 150D / FDY jersey cotton nanosilk fabric to solve the problems raised in the above-mentioned background technology.

[0004] To solve the above technical problems, the technical solution provided by the present invention is: a method for producing a 32-count cotton-covered T400 / 150D / FDY jersey cotton nanosilk fabric, comprising the following steps: using 32-count cotton yarn as the face yarn of the fabric; using T400 / 150D / FDY as the bottom yarn of the fabric; wherein the T400 / 150D / FDY has good tensile properties and recovery properties.

[0005] Preferably, the fabric is made of a single-sided loom, and the model of the single-sided loom is 20 needles, 22 needles or 24 needles; wherein, when the model is 20 needles, the gram weight of the grey cloth off the machine is 150-180g and the gram weight of the finished product is 235-265g; when the model is 22 needles, the gram weight of the grey cloth off the machine is 165-195g and the gram weight of the finished product is 250-280g; when the model is 24 needles, the gram weight of the grey cloth off the machine is 175-210g and the gram weight of the finished product is 265-295g.

[0006] Preferably, the grey cloth is subjected to a setting treatment after dyeing, and the setting temperature is less than or equal to 165°C or the setting machine speed is 20 yards or 180°C and the setting machine speed is 28 yards.

[0007] Preferably, the grey cloth is directly made into clothing after being dyed.

[0008] Preferably, the breaking strength of the T400 / 150D / FDY is greater than or equal to 3.5 cN / dtex, the initial modulus is greater than or equal to 900 cN / dtex, the elongation is greater than or equal to 160%, and the stretch recovery rate is greater than or equal to 90%.

[0009] Preferably, the raw materials for manufacturing the T400 / 150D / FDY include polybutylene terephthalate (PBT) or syndiotactic polybutylene terephthalate (iPBT), and polyethylene terephthalate (PE T) having a cyclic oligomer content of less than or equal to 100 mg / kg.

[0010] 7. The method according to any one of claims 1 to 4, characterized in that the structure of the T400 / 150D / FDY includes at least one of FDY (fully drawn yarn), POY (pre-oriented yarn), and DTY (deformed yarn).

[0011] Preferably, the cross-sectional shape of the T400 / 150D / FDY includes at least one of a circular shape, a polygonal shape, an elliptical shape, a flat shape, and the like.

[0012] Preferably, the fineness deviation rate of the T400 / 150D / FDY is not greater than 2%, the length deviation rate is not greater than ±1%, and the endpoint misalignment rate is not greater than 0.5%.

[0013] Preferably, the breaking strength deviation rate of the T400 / 150D / FDY is not greater than 5%, the initial modulus deviation rate is not greater than 5%, the elongation deviation rate is not greater than 5%, and the elongation recovery deviation rate is not greater than 5%.

[0014] The advantages of the present invention are: excellent fabric performance:

[0015] High elasticity and strong recovery: The T400 / 150D / FDY used has good tensile and recovery properties, with a breaking strength greater than or equal to 3.5cN / dtex, an initial modulus greater than or equal to 900cN / dtex, an elongation greater than or equal to 160%, and a stretch recovery greater than or equal to 90%, making the made clothes comfortable to wear and not easy to deform, able to adapt to various human activities, and can still maintain a good shape after long-term wear.

[0016] Stable quality: The deviation rate of each index of T400 / 150D / FDY is strictly controlled, the deviation rate of fineness is not more than 2%, the deviation rate of length is not more than ±1%, the endpoint unevenness rate is not more than 0.5%, and the deviation rates of breaking strength, initial modulus, elongation and stretch recovery rate are all not more than 5%, which ensures the uniformity and stability of fabric quality and reduces the defective rate.

[0017] Production process advantages:

[0018] Flexible weaving options: It can be produced by 20-needle, 22-needle or 24-needle single-sided looms. Different models correspond to different weights of grey fabrics. Fabrics of different weights can be made to meet diverse product needs. The weight can be flexibly adjusted according to the purpose and design requirements of the clothing.

[0019] Mild post-treatment: The setting temperature of the grey fabric after dyeing is less than or equal to 165℃, and the weight of the finished product is 265-295g. This relatively low setting temperature can not only ensure the stability of the fabric shape, but also reduce the damage to the fabric fiber structure, and maintain the original softness and color of the fabric.

[0020] The products have a wide range of applications: the grey cloth can be directly made into clothing after dyeing, which simplifies the production process and improves production efficiency. The made clothing combines the skin-friendly properties of the 32-count cotton yarn of the veil and the performance advantages of the bottom yarn T400 / 150D / FDY. It is suitable for all kinds of close-fitting sportswear, daily casual clothing, etc., meeting consumers' dual needs for comfort and functionality.

[0021] Outstanding raw material characteristics: The manufacturing raw materials include polybutylene terephthalate (PBT) or syndiotactic polybutylene terephthalate (iPBT), and polyethylene terephthalate (PET) with a cyclic oligomer content of less than or equal to 100 mg / kg. These raw materials give T400 / 150D / FDY unique physical properties, while also ensuring environmental protection and reducing harm to the environment.

[0022] Diverse structures and shapes: T400 / 150D / FDY has at least one of the following structural forms: FDY, POY, and DTY. Its cross-sectional shapes include at least one of circular, polygonal, elliptical, and flat. Diverse structures and shapes can further improve the performance of the fabric, such as changing the feel, breathability, and glossiness of the fabric, providing more possibilities for product innovation. DETAILED DESCRIPTION

[0023] For the purpose of the following detailed description, it should be understood that the present invention may adopt various alternative changes and step sequences, unless expressly specified to the contrary. In addition, except in any operating examples, or otherwise indicated, all numbers representing the amount of ingredients used in the specification and claims should be understood to be modified by the term "about" in all cases. Therefore, unless otherwise indicated, the numerical parameters set forth in the following specification and the attached claims are approximate values ​​that vary according to the desired performance to be obtained by the present invention. At least it is not intended to limit the application of the doctrine of equivalents to the scope of the claims, and each numerical parameter should at least be interpreted according to the number of reported significant figures and by applying ordinary rounding techniques.

[0024] Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the invention are approximations, the numerical values ​​set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in their respective testing measurements.

[0025] In addition, it should be understood that any numerical range described herein is intended to include all subranges subsumed therein. For example, a range of "1 to 10" is intended to include all subranges between (and including) the stated minimum value of 1 and the stated maximum value of 10, i.e., having a minimum value equal to or greater than 1 and a maximum value equal to or less than 10.

[0026] Embodiment 1

[0027] Veil: 32-count cotton yarn.

[0028] Bottom yarn: T400 / 150D / FDY is used, its structure is FDY and its cross-section shape is round.

[0029] Loom: Use a 20-needle single-sided loom, and the weight of the grey fabric off the machine is controlled at 155g.

[0030] Production process: The veil and the base yarn are woven on the machine, the grey cloth is dyed and then shaped at 160℃, and finally made into a close-fitting sports short-sleeved shirt.

[0031] Embodiment 2

[0032] Veil: 32 count cotton yarn.

[0033] Bottom yarn: T400 / 150D / FDY, structure is POY, cross-section shape is polygonal.

[0034] Loom: 22-needle single-sided loom, the weight of the grey fabric off the machine is 165g.

[0035] Production process: After weaving, the grey fabric is dyed and fixed at 162℃ to make daily casual shorts.

[0036] Embodiment 3

[0037] Veil: 32 count cotton yarn.

[0038] Bottom yarn: T400 / 150D / FDY, structure is DTY, cross-section shape is oval.

[0039] Loom: 24-needle single-sided loom, the weight of the grey fabric off the machine is 210g.

[0040] Production process: After the grey cloth is dyed, it is shaped at 165℃ and made into a loose casual top.

[0041] Embodiment 4

[0042] Veil: 32 count cotton yarn.

[0043] Bottom yarn: T400 / 150D / FDY, made of PBT and PET with a cyclic oligomer content of 80 mg / kg, the structure is a mixture of FDY and POY, and the cross-sectional shape is flat.

[0044] Loom: 20-needle single-sided loom, the weight of the grey fabric off the machine is 160g.

[0045] Production process: After dyeing, the pants are fixed at 158℃ to make sports leggings.

[0046] Embodiment 5

[0047] Veil: 32 count cotton yarn.

[0048] Bottom yarn: T400 / 150D / FDY, made of iPBT and PET with a cyclic oligomer content of 50 mg / kg, the structural form is DTY, and the cross-sectional shape is a mixture of round and polygonal.

[0049] Loom: 22-needle single-sided loom, the weight of the grey fabric off the machine is 200g.

[0050] Production process: After the grey fabric is dyed, it is shaped at 163℃ and made into a hooded sports sweatshirt.

[0051] Embodiment 6

[0052] Veil: 32 count cotton yarn.

[0053] Bottom yarn: T400 / 150D / FDY, made of PBT and PET with a cyclic oligomer content of 100 mg / kg, the structure is a mixture of FDY, POY, and DTY, and the cross-sectional shape is a mixture of oval and flat shapes.

[0054] Loom: 24-needle single-sided loom, the weight of the grey fabric off the machine is 210g.

[0055] Production process: After dyeing, the product is fixed at 161℃ to become a windproof sports jacket.

[0056] Raw material characteristics principle

[0057] Veil - 32-count cotton yarn: Cotton fiber has good moisture absorption and softness, which can give the fabric a comfortable touch when it is close to the skin. Its molecular structure contains a large number of hydroxyl groups, which can absorb moisture in the air, allowing the fabric to quickly absorb sweat on the surface of the human body and keep the skin dry. At the same time, the natural fiber structure makes the fabric feel soft and skin-friendly.

[0058] Bottom yarn-T400 / 150D / FDY:

[0059] Stretching and recovery performance: Made of polybutylene terephthalate (PBT) or syndiotactic polybutylene terephthalate (iPBT), and ethylene terephthalate (PET) with a cyclic oligomer content of less than or equal to 100 mg / kg. PBT and iPBT molecular chain segments have certain flexibility and regularity. When stretched by external force, the molecular chain can stretch. After the external force is removed, the molecular chain can return to its original state due to the regularity and cohesion of the molecular chain, thus showing good stretching and recovery performance, breaking strength ≥3.5cN / dtex, initial modulus ≥900cN / dtex, stretching rate ≥160%, stretching recovery rate ≥90%.

[0060] Influence of structure and shape: The different structural forms of FDY, POY, and DTY determine the orientation and crystallinity of the fibers, which in turn affect the performance of the fabric. For example, FDY fully drawn yarns have a high orientation and high fiber strength; POY pre-oriented yarns can be further stretched and oriented in subsequent processing to increase fiber strength; DTY textured yarns give the fabric a certain elasticity and fluffiness. Different cross-sectional shapes such as round, polygonal, elliptical, and flat change the gaps between fibers and the reflection of light, affecting the air permeability, glossiness, and feel of the fabric.

[0061] Weaving principle

[0062] Single-sided loom selection: 20-needle, 22-needle or 24-needle single-sided loom. The different number of needles determines the loop system and density of the loom. The fewer the number of needles, the larger the loops woven, and the weight of the grey fabric is relatively small; the more the number of needles, the smaller the loops and the closer they are arranged, and the heavier the grey fabric is. For example, a 20-needle single-sided loom is suitable for making light fabrics, and the weight of the grey fabric is 150-155g; a 24-needle single-sided loom is suitable for making heavy fabrics, and the weight of the grey fabric is greater than or equal to 210g. By choosing looms with different numbers of needles, the requirements of different products for fabric weight and thickness can be met.

[0063] Interweaving of veil and backing yarn: During the weaving process, 32-count cotton yarn is used as veil and T400 / 150D / FDY is used as backing yarn, which are interwoven with each other through the looping motion of the loom. The veil provides skin-friendly touch on the outer layer, and the backing yarn provides structural support and elastic properties on the inner layer. The two are combined to form a grey fabric with composite properties.

[0064] Post-processing principle

[0065] Dyeing principle: Grey cloth dyeing uses the interaction between dye molecules and fiber molecules, such as van der Waals force, hydrogen bond, ionic bond, etc., to make dye molecules adhere to and fix on the fiber. Cotton fiber and T400 fiber have different chemical structures, so it is necessary to select appropriate dyes and dyeing processes to ensure that both fibers can be evenly colored to achieve the desired color effect.

[0066] Setting principle: Setting temperature is less than or equal to 165℃, setting speed is 20 yards, or 180℃, setting speed is 28 yards

[0067] At these two temperatures, the fiber molecular chain segments gain a certain amount of energy and can move and rearrange to a certain extent. By applying a certain amount of tension and time, the fiber molecular chain is fixed in a new position, thereby stabilizing the size and shape of the fabric. At the same time, due to the relatively low temperature, the damage to the fiber structure is reduced, and the original softness, elasticity and color of the fabric are maintained.

[0068] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for producing 32-count cotton-covered T400 / 150D / FDY jersey cotton nanosilk fabric, characterized in that: The following steps are involved: 32-count cotton yarn is used as the face yarn of the fabric; T400 / 150D / FDY is used as the bottom yarn of the fabric; wherein the T400 / 150D / FDY has good tensile properties and recovery properties.

2. The method according to claim 1, characterized in that: The fabric is made of a single-sided loom, and the model of the single-sided loom is 20 needles, 22 needles or 24 needles; when the model is 20 needles, the gram weight of the grey cloth off the machine is 150-180g and the gram weight of the finished product is 235-265g; when the model is 22 needles, the gram weight of the grey cloth off the machine is 165-195g and the gram weight of the finished product is 250-280g; when the model is 24 needles, the gram weight of the grey cloth off the machine is 175-210g and the gram weight of the finished product is 265-295g.

3. The method according to claim 1, characterized in that: The grey cloth is subjected to a setting treatment after being dyed, and the setting temperature is less than or equal to 165°C.

4. The method according to claim 1, characterized in that: The grey cloth is directly made into clothing after being dyed.

5. The method according to any one of claims 1 to 4, characterized in that: The breaking strength of the T400 / 150D / FDY is greater than or equal to 3.5 cN / dtex, the initial modulus is greater than or equal to 900 cN / dtex, the elongation is greater than or equal to 160%, and the stretch recovery rate is greater than or equal to 90%.

6. The method according to any one of claims 1 to 4, characterized in that: The raw materials for manufacturing the T400 / 150D / FDY include polybutylene terephthalate (PBT) or syndiotactic polybutylene terephthalate (iPBT), and polyethylene terephthalate (PE T) with a cyclic oligomer content of less than or equal to 100 mg / kg.

7. The method according to any one of claims 1 to 4, characterized in that: The structural form of the T400 / 150D / FDY includes at least one of FDY (fully drawn yarn), POY (pre-oriented yarn), and DTY (deformed yarn).

8. The method according to any one of claims 1 to 4, characterized in that: The cross-sectional shape of the T400 / 150D / FDY includes at least one of a circular shape, a polygonal shape, an elliptical shape, a flat shape, and the like.

9. The method according to any one of claims 1 to 4, characterized in that: The fineness deviation rate of the T400 / 150D / FDY is not greater than 2%, the length deviation rate is not greater than ±1%, and the endpoint unevenness rate is not greater than 0.5%.

10. The method according to any one of claims 1 to 4, characterized in that: The deviation rate of breaking strength of the T400 / 150D / FDY is not greater than 5%, the deviation rate of initial modulus is not greater than 5%, the deviation rate of elongation is not greater than 5%, and the deviation rate of stretch recovery is not greater than 5%.