Light and thin all-cotton three-proofing fabric and preparation method thereof

Abstract

The invention relates to the technical field of fabrics, in particular to a light and thin all-cotton three-proofing fabric as well as a preparation method and application thereof. The invention discloses a preparation method of a light and thin all-cotton three-proofing fabric. The preparation method comprises the following steps: S1, preparing 80-100S / 1 high-count cotton yarn; s2, the high-count cotton yarn is prepared into a fabric through a weaving process, and the fabric is pretreated; s3, dyeing the pretreated fabric, washing the dyed fabric, and adjusting the pH value of the fabric to 4-5; s4, a three-proofing assistant is applied to the dyed and washed fabric, and shaping treatment is carried out; and S5, carrying out preshrinking treatment on the shaped fabric to obtain the light and thin all-cotton three-proofing fabric. According to the preparation method disclosed by the invention, the light, thin and soft all-cotton fabric with excellent three-proofing performance and good washability is obtained by accurately controlling process parameters of links such as spinning, weaving, sizing, pre-treatment, dyeing, three-proofing assistant, sizing and the like.

Description

Technical Field

[0001] The invention relates to the technical field of fabrics, and in particular to a light and thin all-cotton three-proof fabric, a preparation method thereof and applications thereof. Background Art

[0002] With the improvement of living standards and the increasing demand of consumers for fabric functionality, triple-proof fabrics (i.e. waterproof, oil-proof and stain-proof fabrics) have gradually gained market favor due to their unique practical performance. Triple-proof fabrics are treated with special processes to effectively block the penetration of moisture, grease and stains, making them very suitable for daily clothing and outdoor equipment, especially children's outdoor clothing, which can play an effective protective role when playing.

[0003] At present, the three-proof fabrics on the market are mainly divided into two categories: chemical fiber fabrics and natural fiber fabrics. Chemical fiber fabrics, such as 100% polyester fiber or nylon fiber, are widely used because of their good three-proof effect. This type of fabric enhances the three-proof performance by laminating a thin film on the inner layer. However, this type of fabric generally has the problem of poor air permeability and moisture permeability, which is easy to produce a stuffy feeling after wearing, and it feels hard and easy to produce noise. At the same time, the anti-static performance is poor. Another type of fabric is made of natural fibers, such as cellulose fibers such as cotton. Compared with chemical fiber fabrics, this type of fabric has better air permeability, moisture permeability and anti-static performance, and is more suitable for human body wearing. However, in order to achieve the three-proof effect, conventional cotton fabrics usually need to use thicker woven fabrics and perform three-proof treatment through post-finishing processes. However, the fabric treated in this way will feel stiff and heavy, which greatly reduces the comfort of wearing, and lacks the lightness of thin chemical fiber materials.

[0004] In order to balance lightness and three-proof performance, some manufacturers try to use light cotton fabrics for three-proof finishing. However, after completing the three-proof finishing, such fabrics often face the problem of decreased physical properties and unbalanced hand feel, which makes it difficult to meet actual wearing needs. In addition, the three-proof effect of most three-proof fabrics will be greatly reduced after washing, making it difficult to meet the requirements of washability.

[0005] To this end, the present application provides a light and thin all-cotton triple-proof fabric, a preparation method thereof, and an application thereof. Summary of the invention

[0006] The present application provides a light, thin, all-cotton three-proof fabric, a preparation method and an application thereof, using 100% long-staple cotton as a raw material, and utilizing compact spinning technology to prepare 80-100S / 1 high-count cotton yarn. By precisely controlling the process parameters of each link such as spinning, weaving, sizing, pretreatment, dyeing, three-proof additives, and shaping, a light, thin, soft, all-cotton fabric with excellent three-proof properties and good washability is finally obtained.

[0007] The technical solution adopted by this application to solve its technical problem is:

[0008] In a first aspect, the present application provides a method for preparing a light and thin all-cotton triple-proof fabric, comprising the following steps:

[0009] S1. Long-staple cotton is used as raw material to prepare 80-100S / 1 high-count cotton yarn through compact spinning process;

[0010] S2. The high-count cotton yarn is prepared into a fabric by a weaving process, and the fabric is pre-treated; the pre-treatment includes singeing, cold-batch desizing and mercerizing;

[0011] S3. Dyeing the pre-treated fabric, washing after dyeing, and adjusting the pH value of the fabric to between 4 and 5;

[0012] S4. Apply three anti-additives to the dyed and washed fabric for finalizing;

[0013] S5. Pre-shrink the shaped fabric to control the shrinkage rate of the fabric within 3%; and obtain the light and thin all-cotton three-proof fabric.

[0014] In one or more technical solutions, in step S1, the compact spinning process includes the following steps:

[0015] Opening and cleaning cotton: the raw cotton fiber should be Xinjiang long-staple cotton with a fiber length of more than 33mm;

[0016] Carding: The cotton rolls after opening and cleaning are further carded by a carding machine. The cylinder speed is set at 330-350r / min, the doffer speed is 6.2-6.4 / min, the licker-in speed is 810-830r / min, the cylinder cover gauge is 0.25mm / 0.3mm / 0.2mm / 0.25mm / 0.3mm, and the cylinder doffer gauge is 0.13mm. The actual dry weight of the carded sliver is 12.5g.

[0017] Drawing: The carded sliver obtained after carding is drawn using a two-pass drawing process, with the total drafting multiple set to 6.2, the drawing frame output speed to 16-20m / min, the first-pass delivery speed to 220m / min, and the last-pass delivery speed to 200m / min;

[0018] Roving: Set the front roller speed to 4.22-4.69m / min and the spindle speed to 480r / min;

[0019] Spinning: set the small roller gauge to 18x34mm, roller speed to 190rpm, and back zone drafting multiple to 1.4;

[0020] Winding: Set the drum speed to 1200m / min and the winding tension to 8.0cN.

[0021] In one or more technical solutions, in step S1, the high-count cotton yarn has an average yarn strength of 270-290 cN / Tex, a yarn evenness CV of 11-14%, -50% thin sections of (3±1) pieces / km, +50% thick sections of (55±10) pieces / km, +200% cotton knots of (20±5) pieces / km, a yarn hairiness index H value of 2.0-5.0, and a yarn twist of 1300-1600 twists / m.

[0022] In one or more technical solutions, in step S2, the high-count cotton yarn is prepared into fabric through a weaving process and a sizing process;

[0023] Sizing process: starch 80-90kg / m 3 , PVA 30-45kg / m 3 , solid content 11%, sizing ink printing length 35-40m / m 3 , moisture regain 4.6-5.8%, sizing tank temperature ≥90℃, viscosity 9-10s, sizing speed 4.1m / min, cylinder tension 27±1kN, warp beam tension 13±2kN, sizing rate controlled at 16-18.5%.

[0024] In one or more technical solutions, in step S2, the pre-treatment process includes the following steps:

[0025] Singeing: adopt one reverse and two forward singeing process, the flame temperature is 1000-1100℃, the speed is 110-120m / min, the cloth surface becomes smooth, the quality requirement is ≥4 level;

[0026] Cold stack desizing: Use soda ash 50-70g / L, hydrogen peroxide 15g / L, cold stack scouring agent TF-125LA 10g / L, penetrant ERKANTOL NR 1-2g / L, stack at room temperature for 24 hours and then wash with water, the desizing rate is more than 80%;

[0027] Mercerizing: light mercerizing process is adopted, the caustic soda concentration is 20-24g / L, the machine speed is 60-70m / min, the temperature is controlled at 15-25℃, and the rolling rate is 65%-75%.

[0028] In one or more technical solutions, in step S3, the dyeing process includes the following steps:

[0029] The mercerized cloth is dyed with reactive dyes on a continuous pad dyeing machine. The process is: padding dye solution → hot air pre-drying → drum drying → stacking → padding salt and alkali solution → steam fixation → cold water washing → hot water washing → soap washing → weak acid washing;

[0030] After dyeing, the fabric is thoroughly washed, and the continuous or jet washing machine washes the fabric multiple times.

[0031] In one or more technical solutions, in step S4, the three-proof auxiliary agent includes the following raw materials:

[0032] Waterproof and oil-proof agent PHOBOL NB-NH 40-50g / L

[0033] Crosslinking agent PHOBOL EXT.SFB 25-35g / L

[0034] Softener Megasoft CEC-01 6-12g / L.

[0035] In one or more technical solutions, in step S4, the baking temperature during the shaping treatment is 170° C. and the time is 1 minute.

[0036] In a second aspect, the present application provides a lightweight, all-cotton, three-proof fabric, which is prepared by the preparation method described in the first aspect.

[0037] In one or more technical solutions, the specification of the fabric is 80sx80s+80s+20D, and the warp and weft density is 190x130.

[0038] The beneficial effects of this application are:

[0039] High-count and high-quality pure cotton yarn is used, and high-quality cotton yarn is prepared by controlling the spinning process parameters. At the same time, the weaving process and sizing process parameters are optimized, and the singeing is achieved to level 4 or above. The pre-treatment process is strictly controlled, and a mild pre-treatment process is adopted. The cloth is fully washed after dyeing to keep the cloth clean and permeable, and the pH of the cloth is ensured to be weakly acidic before the treatment with the three-proof auxiliary agent. Finally, by optimizing the formula of three-proof auxiliary agents of different brands and different dosages, a light, soft, physical index-good and washable all-cotton three-proof fabric is obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0041] Figure 1 This is a schematic diagram of the application results of the light and thin all-cotton triple-proof fabric described in this application;

[0042] Figure 2 It is a schematic diagram showing that the triple-defense auxiliary agent described in this application has triple-defense effects;

[0043] Figure 3 A summary diagram of the raw materials and content of the three-proof auxiliary agents used in the preparation process of the three-proof fabrics of Examples 1-10;

[0044] Figure 4 It is a summary diagram of the test results of the three-proof fabrics of Examples 1-10. DETAILED DESCRIPTION

[0045] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0046] In this application, the term "and / or" describes the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0047] In the present application, "at least one" means one or more, and "plurality" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, "at least one of a, b, or c", or "at least one of a, b, and c" can all represent: a, b, c, ab (i.e., a and b), ac, bc, or abc, where a, b, and c can be single or multiple, respectively.

[0048] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution, some or all of the steps can be executed in parallel or sequentially, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0049] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0050] The weight of the relevant components mentioned in the embodiment description of the present application can not only refer to the specific content of each component, but also represent the proportional relationship between the weights of the components. Therefore, as long as the content of the relevant components is proportionally enlarged or reduced according to the embodiment description of the present application, it is within the scope disclosed in the embodiment description of the present application. Specifically, the mass described in the embodiment description of the present application can be a mass unit known in the chemical industry such as μg, mg, g, kg, etc.

[0051] Preparation Example 1, a method for preparing a light and thin all-cotton three-proof fabric, the specific production process is as follows:

[0052] Spinning → weaving → cloth inspection → grey cloth singeing → scouring → mercerizing → dyeing → drying → three-proofing agent treatment → stretching and shaping → baking → pre-shrinking → finished product inspection.

[0053] In this application, the spinning process is optimized to minimize the generation of yarn hairiness during the entire fabric production process, while maximizing the high-strength yarn:

[0054] Specifically, the spinning process comprises the following steps:

[0055] (1) Yarn preparation: 80-100S / 1 compact spinning yarn, twist 1300-1600 twists / m;

[0056] Spinning: The spinning process includes: opening and cleaning cotton → carding → drawing → roving → spun yarn → winding → finished yarn

[0057] Opening and cleaning cotton: The raw cotton fiber should be Xinjiang long-staple cotton with a fiber length of more than 33mm, the main fiber length should not be less than 29mm and the length uniformity should be good.

[0058] Carding: The cotton rolls after opening and cleaning were further carded by a carding machine. The cylinder speed was set to 330-350 r / min, the doffer speed to 6.2-6.4 / min, the licker-in speed to 810-830 r / min, the cylinder cover gauge to 0.25mm / 0.3mm / 0.2mm / 0.25mm / 0.3mm, and the cylinder doffer gauge to 0.13mm. The actual dry weight of the raw sliver was 12.5g, and the weight deviation was 1.45%.

[0059] Drawing: The carded sliver is drawn using a two-pass drawing process, with the total drafting multiple set at 6.2. Following the low-speed process principle, the drawing frame output speed is 16-20m / min. Drawing speed: first pass: 220m / min; last pass: 200m / min.

[0060] Roving: The roving stage follows the low-speed process principle, setting the front roller speed to 4.22-4.69m / min and the spindle speed to 480r / min. At the same time, the roving tension should be reduced to make the holding force and drafting force between cotton fibers compatible to prevent the deterioration of the yarn and accidental drafting of the roving.

[0061] Spinning: The spinning process adopts low speed, compact spinning technology, small roller spacing 18x34mm, roller speed 190rpm, and rear zone drafting multiple 1.4.

[0062] Winding: The winding process adopts the process principle of "small tension, low speed, and elasticity maintenance". The higher the speed, the greater the friction between the yarn and the groove drum, the greater the damage to the yarn, and the increase in the number of hairiness. Therefore, the groove drum speed is set to 1200m / min and the winding tension is 8.0cN.

[0063] Final yarn specifications:

[0064] Taking 80s yarn indicators as an example: the average yarn strength is 270-290cN / Tex, the yarn evenness CV is 11-14%, -50% thin sections are (3±1) pieces / km, +50% thick sections are (55±10) pieces / km, +200% cotton knots are (20±5) pieces / km, the yarn hairiness index H value is 2.0-5.0, and the yarn twist is 1300-1600 twists / m.

[0065] Specifically, weaving is done first, then sizing;

[0066] The weaving process and sizing process are set as follows:

[0067] Weaving: The loom reed and healds are ensured to be free from wear and rust, so as to prevent friction and fuzzing of the yarn during weaving.

[0068] Sizing: The fabric structure is a plain weave structure, and there are many frictions during weaving, so the sizing rate is a little higher, which can improve the strength of the warp yarn and reduce the problems of yarn wear, weaving breakage and fabric defects. Therefore, the sizing process of sizing yarn is: starch 80-90kg / m 3 , PVA 30-45kg / m 3 , solid content 11%, sizing ink printing length 35-40m / m 3 , moisture regain 4.6-5.8% (to avoid the fluff caused by weaving affecting weaving, the moisture regain is controlled within this range), sizing tank temperature ≥ 90℃, viscosity 9-10s, sizing speed 4.1m / min, cylinder tension (27±1)kN, warp tension (13±2)kN, sizing rate controlled at 16-18.5%;

[0069] Specifically, the pre-treatment process includes the following processes: singeing → cold stacking desizing → mercerizing.

[0070] Singeing: One reverse and two forward singeing process is adopted, the flame temperature is 1000-1100℃, the machine speed is 110-120m / min, so that the cloth surface becomes smooth and knotty, and the quality requirement is ≥ level 4.

[0071] Cold stack desizing: For thin fabrics, the pretreatment process cannot be too strong. Conventional long-wheel strong alkali and hydrogen peroxide desizing processes affect the strength of the fabric. Therefore, the cold stack process is adopted, and soda ash (sodium carbonate) is used instead of strong alkali (sodium hydroxide). The effect is mild and the damage to the fiber is small; the specific process parameters are: soda ash 50-70g / L, hydrogen peroxide 8-15g / L, cold stack scouring agent TF-125LA10g / L, penetrant ERKANTOL NR: 1-2g / L, room temperature stacking time is 24 hours and then washed with water, and the desizing rate is more than 80%; the process parameters selected in the embodiment are: soda ash 50g / L, hydrogen peroxide 15g / L, cold stack scouring agent TF-125LA 10g / L, penetrant ERKANTOL NR: 1g / L

[0072] Mercerizing: The mercerizing process also needs to adopt a light mercerizing process: the caustic soda concentration is 15-24g / L, the vehicle speed is 60-70m / min, the temperature is controlled at 15-25°C, and the rolling rate is 65%-75%; specifically, the process parameters selected in the embodiment are: the caustic soda concentration is 22 / L, the vehicle speed is 60m / min, the temperature is controlled at 15°C, and the rolling rate is controlled at 65%-75%.

[0073] Specifically, the dyeing process is:

[0074] The mercerized cloth is conventionally dyed with reactive dyes on a continuous pad dyeing machine. The process flow is: padding with dye solution → hot air pre-drying → drum drying → stacking → padding with saline and alkali solution → steam fixation → cold water washing → hot water washing → soap washing → weak acid water washing.

[0075] After dyeing, the fabrics are fully washed. The continuous or jet washing machine washes the fabrics multiple times to remove the hydrolyzed dyes, salts, leveling agents, penetrants, and color fixatives remaining on the fabrics, because these substances greatly affect the film-forming effect and washability of the subsequent three-proofing additives. At the same time, ensure the pH value of the fabric before the three-proofing finishing. The washed fabrics are rewashed in clean water with a slightly acidic pH value of about 4.5. Be sure to wash the fabrics thoroughly without leaving any cationic substances on the fabric surface. At the same time, adjust the pH value of the fabric to between 4-5. Because the alkaline residues on the fabric will make the pH value of the waterproof and oil-proofing agent working solution alkaline, thereby affecting the stability of the working solution, and then affecting the cross-linking effect of the three-proofing finishing agent and the fabric, resulting in poor three-proofing finishing effect.

[0076] Specifically, the steps of the three-proofing agent treatment are:

[0077] After dyeing and washing, the fabric is dried and then subjected to three-proof finishing. During the three-proof finishing, the dry cloth is immersed in the material trough of the setting machine, with a liquid rate of 60-70%, and then baked at 160-170℃ for 1min. If the baking temperature is too high, it is easy to change the color, so the temperature is controlled within 170℃.

[0078] The three-proof additives include the following raw materials:

[0079] Archroma Chemicals (China) Co., Ltd.: Waterproof and oil-proof agent PHOBOL NB-NH 40-50g / L, crosslinking agent PHOBOLEXT.SFB 25-35g / L, softener Megasoft CEC-01 6-12g / L; the components of the setting machine are cleaned and the three supporting agents are fully mixed.

[0080] Use 0.1-0.3g / L acetic acid to adjust the pH value of the three-proof additive to 6-6.5;

[0081] Specifically, the process of tentering and shaping is to take out the impregnated fabric and bake it at 170°C for 1 minute;

[0082] Specifically, the pre-shrinking treatment is to shrink the fabric by a pre-shrinking machine to control the shrinkage of the fabric within 3% to 0;

[0083] Specifically, finished product inspection involves fabric inspection on a finished product fabric inspection machine.

[0084] The above method was used to sort out the Figure 1-2 The fabric has three-proof functions; the obtained three-proof fabric parameters are: yarn count parameters: 80sx80s+80s+20D, warp and weft density 190x130, gram weight 100g / m 2 ; It has a soft hand feel, which is basically consistent with the hand feel of conventional non-three-proof finished fabrics. At the same time, it has excellent three-proof functions and excellent washability.

[0085] Examples 1 to 5 respectively relate to a method for preparing a light and thin all-cotton three-proof fabric, the preparation method comprising the process described in Preparation 1, the specific process parameters and control conditions are as described in Preparation Example 1, and the process parameters can be controlled within the corresponding range;

[0086] When the three-proofing aid is treated, the raw materials and content of the three-proofing aid are as follows: Example 1-Example 5 Figure 3 As shown, the fabric is impregnated with three-proofing agents.

[0087] Example 6

[0088] A method for preparing a light and thin all-cotton three-proof fabric, comprising the process described in Preparation 1, the specific process parameters and control conditions are as described in Preparation Example 1, and the process parameters can be controlled within the corresponding range;

[0089] When the three-proofing agent is used for treatment, the raw materials and content of the three-proofing agent are as follows: Figure 3 As shown; the fabric is impregnated with three-proof additives.

[0090] Example 7

[0091] A method for preparing a light and thin all-cotton three-proof fabric, comprising the process described in Preparation 1, the specific process parameters and control conditions are as described in Preparation Example 1, and the process parameters can be controlled within the corresponding range;

[0092] When the three-proofing agent is used for treatment, the raw materials and content of the three-proofing agent are as follows: Figure 3 As shown; the fabric is impregnated with three-proof additives.

[0093] Example 8-Example 10, respectively, relate to a method for preparing a thin all-cotton three-proof fabric, the preparation method comprising the process described in Preparation 1, the specific process parameters and control conditions are as described in Preparation Example 1, and the process parameters can be controlled within the corresponding range;

[0094] When the three-proofing aid is treated, the raw materials and content of the three-proofing aid are as follows: Example 8-Example 10 Figure 3 As shown, the fabric is impregnated with three-proofing agents.

[0095] The three-proof fabrics prepared in Examples 1-10 were subjected to the following performance tests, and the relevant test results are summarized in Figure 4 middle.

[0096] 1. Water repellency is tested using the GBIT 4745-2012 water dipping method;

[0097] 2. Oil repellency adopts GBIT 19977-2005;

[0098] 3. The decontamination is easy to detect using the FZ1T 01118-2012 wiping method;

[0099] 4. High-salt diluted fermented soy sauce ≥3-4;

[0100] 5. Use 4N washing method, add detergent once, wash continuously for 3 cycles, and dry at 60 degrees;

[0101] 6. Hand feel softness (bending stiffness (mN cm)) GB / T 18318.1-2009 inclined plane method standard determination;

[0102] 7. The breaking strength is measured according to GB / T 3923.2-2013 standard;

[0103] 8. The tearing strength is measured according to GB / T 3917.2-2009;

[0104] 9. The moisture permeability is measured according to GB / T 12704.1-2009 (test chamber environment: 38.0°C, 90.0% moisture permeability time: 1h, moisture absorption method).

[0105] from Figure 3 , Figure 4 It can be seen that:

[0106] Fabric of Example 1

[0107] Water and oil repellency: Water and oil repellency were poor both before and after washing, especially the water repellency dropped significantly after washing. This is the main reason why the overall effect was rated as "average".

[0108] Stain removal: The stain removal performance basically meets the standard requirements before and after washing, but the performance decreases after washing.

[0109] Softness: Although the softness has decreased, it is still within an acceptable range.

[0110] Mechanical properties: Higher tearing strength and breaking strength indicate that the fabric has better mechanical properties.

[0111] Moisture permeability: Good moisture permeability means the fabric has good air permeability and moisture permeability.

[0112] Therefore, the comprehensive effect of Example 1 was rated as "average", mainly because the amount of water-repellent and oil-repellent agent and cross-linking agent was insufficient, resulting in poor water repellency and oil repellency before and after washing. Although the performance of easy stain removal, soft hand feel, mechanical properties and moisture permeability was good, these advantages could not make up for the lack of three-proof performance.

[0113] Fabric of Example 2

[0114] Water repellency and oil repellency: The water repellency of Example 2 was acceptable before and after washing, but the oil repellency was poor before and after washing, especially the oil repellency before washing was only level 3, which was lower than the standard requirement. This was one of the main reasons why the comprehensive effect was rated as "average".

[0115] Stain removal: The stain removal performance basically meets the standard requirements before and after washing, but the performance decreases slightly after washing.

[0116] Softness: The softness is good, which means the use of softener effectively improves the feel of the fabric.

[0117] Mechanical properties: Higher tearing strength and breaking strength indicate that the fabric has better mechanical properties.

[0118] Therefore, the comprehensive effect of Example 2 was rated as "average", mainly because the amount of water-proof and oil-proof agent and cross-linking agent was insufficient, resulting in poor oil repellency before and after washing. Although the performance of easy stain removal, soft hand feel, mechanical properties and moisture permeability was good, these advantages could not completely make up for the lack of oil repellency.

[0119] Fabric of Example 3

[0120] Water repellency and oil repellency: The water repellency of Example 3 was acceptable before and after washing, but the oil repellency was poor before and after washing, especially the oil repellency before washing was only level 3-4, close to the lower limit of the standard requirement. This is one of the main reasons why the comprehensive effect was rated as "average".

[0121] Stain removal: The stain removal performance basically meets the standard requirements before and after washing, but the performance decreases slightly after washing.

[0122] Softness: The softness is good, which means the use of softener effectively improves the feel of the fabric.

[0123] Mechanical properties: Higher tearing strength and breaking strength indicate that the fabric has better mechanical properties.

[0124] Moisture permeability: Good moisture permeability means the fabric has good air permeability and moisture permeability.

[0125] Therefore, the comprehensive effect of Example 3 was rated as "average", mainly because the amount of water-proof and oil-proof agent and cross-linking agent was insufficient, resulting in poor oil repellency before and after washing. Although the performance in terms of easy stain removal, soft hand feel, mechanical properties and moisture permeability was good, these advantages could not completely make up for the lack of oil repellency.

[0126] Fabric of Example 4

[0127] Water repellency and oil repellency: The water repellency and oil repellency of Example 4 were good before and after washing, especially the oil repellency after washing was maintained at level 3-4, which met the standard requirements. This shows that the use of the three-proofing auxiliary agent Nuva N4547 lig significantly improved the three-proofing performance.

[0128] Stain removal: The stain removal performance basically meets the standard requirements before and after washing. The performance decreases slightly after washing, but is still within an acceptable range.

[0129] Softness: The softness is very good, which means that the use of softener effectively improves the feel of the fabric.

[0130] Mechanical properties: Higher tearing strength and breaking strength indicate that the fabric has better mechanical properties.

[0131] Therefore, the comprehensive effect of Example 4 is rated as "excellent", mainly because:

[0132] Use of triple-proofing agent Nuva N4547 lig: This comprehensive triple-proofing agent significantly improves the waterproof, oil-proof and stain-proof effects, especially maintaining good performance after washing.

[0133] Use of softener: 12g / L softener Megasoft CEC-01 effectively improves the feel of the fabric, making it very soft.

[0134] Mechanical properties and moisture permeability: The tear strength and breaking strength are high, the moisture permeability is very good, and these properties have reached a high level.

[0135] Fabric of Example 5

[0136] Water repellency and oil repellency: The water repellency and oil repellency of Example 5 were excellent before and after washing, especially the oil repellency before washing reached level 4, and the oil repellency after washing remained unchanged, meeting the standard requirements. This shows that the use of high amounts of water-repellent and oil-repellent agents and crosslinking agents significantly improved the three-proof properties.

[0137] Stain removal: Stain removal is excellent both before and after washing, and the performance after washing remains unchanged, meeting standard requirements.

[0138] Softness: The softness is very good, which means that the use of softener effectively improves the feel of the fabric.

[0139] Mechanical properties: The tearing strength and breaking strength are high, indicating that the mechanical properties of the fabric are very good.

[0140] Moisture permeability: The moisture permeability is very good, which means that the fabric has excellent air permeability and moisture permeability.

[0141] Therefore, the comprehensive effect of Example 5 is rated as "excellent +", mainly because:

[0142] High dosage of water-proof and oil-proof agent and cross-linking agent: 50g / L of water-proof and oil-proof agent PHOBOL NB-NH and 35g / L of cross-linking agent PHOBOL EXT.SFB provide stronger three-proof performance, especially the oil repellency remains unchanged after washing, which meets the standard requirements.

[0143] Use of fluorine-free water repellent: 30g / L of fluorine-free water repellent CWR-SH not only provides additional water repellency but is also more environmentally friendly.

[0144] Use of softener: 6g / L of softener Megasoft CEC-01 effectively improves the feel of the fabric, making it very soft.

[0145] Mechanical properties and moisture permeability: The tear strength and breaking strength are high, and the moisture permeability is very good. These properties have reached a very high level.

[0146] Fabric of Example 6

[0147] Water repellency and oil repellency: The water repellency and oil repellency of Example 6 are excellent before and after washing, especially the oil repellency before washing reaches level 4, and the oil repellency after washing remains at level 3-4, which meets the standard requirements. This shows that the use of appropriate water-repellent and oil-repellent agents and crosslinking agents significantly improves the three-proof properties.

[0148] Soil release: Soil release is excellent both before and after washing. The performance after washing slightly decreases, but still meets the standard requirements. The high dosage of PHOBOL NB-SR plays a key role.

[0149] Softness: The softness is very good, which means that the use of softener effectively improves the feel of the fabric.

[0150] Mechanical properties: The tearing strength and breaking strength are high, indicating that the mechanical properties of the fabric are very good.

[0151] Moisture permeability: The moisture permeability is very good, which means that the fabric has excellent air permeability and moisture permeability.

[0152] Therefore, the comprehensive effect of Example 6 is rated as "excellent +", mainly because:

[0153] Moderate water-proof and oil-proof agent and cross-linking agent: 40g / L water-proof and oil-proof agent PHOBOL NB-NH and 25g / L cross-linking agent PHOBOL EXT.SFB provide good three-proof performance, especially the oil repellency after washing remains at level 3 to 4, which meets the standard requirements.

[0154] High dosage of easy-to-clean agent: 50g / L of easy-to-clean agent PHOBOL NB-SR significantly improves the easy-to-clean property and maintains good results even after washing.

[0155] Use of softener: 6g / L of softener Megasoft CEC-01 effectively improves the feel of the fabric, making it very soft.

[0156] Mechanical properties and moisture permeability: The tear strength and breaking strength are high, and the moisture permeability is very good. These properties have reached a very high level.

[0157] Fabric of Example 7

[0158] Water repellency and oil repellency: The water repellency and oil repellency of Example 7 are excellent before and after washing, especially the oil repellency before washing reaches level 4, and the oil repellency after washing remains at level 3-4, which meets the standard requirements. This shows that the use of high dosage of water-repellent and oil-repellent agent and moderate crosslinking agent significantly improves the three-proof performance.

[0159] Stain removal: Stain removal is excellent before and after washing. The performance after washing is slightly reduced, but still meets the standard requirements. The fluorine-free water repellent CWR-SH and the moderate cross-linking agent work together to improve the stain removal.

[0160] Softness: The softness is very good, which means that the use of softener effectively improves the feel of the fabric.

[0161] Mechanical properties: The tearing strength and breaking strength are high, indicating that the mechanical properties of the fabric are very good.

[0162] Moisture permeability: The moisture permeability is very good, which means that the fabric has excellent air permeability and moisture permeability.

[0163] Therefore, the comprehensive effect of Example 7 is rated as "excellent +", mainly because:

[0164] High dosage of waterproof and oil-proof agent: 60g / L of waterproof and oil-proof agent PHOBOL NB-NH provides stronger waterproof and oil-proof effect, especially the oil repellency after washing remains at level 3 to 4, which meets the standard requirements.

[0165] Moderate cross-linking agent: 25g / L of cross-linking agent PHOBOL EXT.SFB provides a good cross-linking effect and enhances the durability of the three-proof properties.

[0166] Use of fluorine-free water repellent: 30g / L of fluorine-free water repellent CWR-SH not only provides additional water repellency but is also more environmentally friendly.

[0167] Use of softener: 6g / L of softener Megasoft CEC-01 effectively improves the feel of the fabric, making it very soft.

[0168] Mechanical properties and moisture permeability: The tear strength and breaking strength are high, and the moisture permeability is very good. These properties have reached a very high level.

[0169] Fabric of Example 8

[0170] Water and oil repellency: The water and oil repellency of Example 8 was good before washing, but decreased slightly after washing. Nevertheless, the water and oil repellency after washing still met the standard requirements. However, this decrease may be due to the insufficient amount of crosslinking agent, resulting in poor durability of the three-proof properties after washing.

[0171] Stain removal: The stain removal performance basically meets the standard requirements before and after washing, but the performance decreases slightly after washing.

[0172] Softness: The softness is good, which means the use of softener effectively improves the feel of the fabric.

[0173] Mechanical properties: Higher tearing strength and breaking strength indicate that the fabric has better mechanical properties.

[0174] Therefore, the comprehensive effect of Example 8 is rated as "average", mainly because:

[0175] Insufficient amount of cross-linking agent: Although a high amount of water- and oil-proofing agent is used, the amount of cross-linking agent is relatively low, which may lead to insufficient cross-linking effect and affect the durability of the three-proofing properties, especially the performance after washing.

[0176] Stain removal performance slightly decreased: Stain removal performance slightly decreased after washing, but still within acceptable range.

[0177] Softness and mechanical properties: Softness and mechanical properties are good, but these advantages cannot completely make up for the shortcomings of the three-proof performance after washing.

[0178] Fabric of Example 9

[0179] Water repellency and oil repellency: The water repellency of Example 9 was average before washing, but it decreased significantly after washing, which did not meet the standard requirements. This is one of the main reasons why the overall effect was rated as "poor". Although the oil repellency was good before and after washing, the lack of water repellency seriously affected the overall performance.

[0180] Stain removal: The stain removal performance basically meets the standard requirements before and after washing, but the performance decreases slightly after washing.

[0181] Softness: The softness is good, which means the use of softener and silicone oil effectively improves the feel of the fabric.

[0182] Mechanical properties: Higher tearing strength and breaking strength indicate that the fabric has better mechanical properties.

[0183] Moisture permeability: Good moisture permeability means the fabric has good air permeability and moisture permeability.

[0184] Therefore, the comprehensive effect of Example 9 was rated as "poor", mainly because:

[0185] Significant decrease in water repellency after washing: Despite the use of a high amount of water and oil repellent, the water repellency after washing decreased significantly and did not meet the standard requirements. This may be due to the type or amount of cross-linking agent, resulting in poor durability of the three-proof properties after washing.

[0186] Oil repellency is good but not enough to make up for the lack of water repellency: Although the oil repellency is good both before and after washing, the lack of water repellency seriously affects the overall performance.

[0187] Stain removal performance slightly decreased: Stain removal performance slightly decreased after washing, but still within acceptable range.

[0188] Softness and mechanical properties: Softness and mechanical properties are good, but these advantages cannot completely make up for the shortcomings of the three-proof performance.

[0189] Fabric of Example 10

[0190] Water repellency and oil repellency: The water repellency and oil repellency of Example 10 were average before washing, but significantly decreased after washing, not meeting the standard requirements. This is one of the main reasons why the comprehensive effect was rated as "poor".

[0191] Stain removal: The stain removal performance basically meets the standard requirements before and after washing, but the performance decreases slightly after washing.

[0192] Softness: The softness is very good, which means that the use of softener effectively improves the feel of the fabric.

[0193] Mechanical properties: Higher tearing strength and breaking strength indicate that the fabric has better mechanical properties.

[0194] Moisture permeability: The moisture permeability is very good, which means the fabric has good air permeability and moisture permeability.

[0195] Therefore, the comprehensive effect of Example 10 was rated as "poor", mainly because:

[0196] Significant decrease in water and oil repellency after washing: Despite the use of a moderate amount of water and oil repellent, the water and oil repellency after washing decreased significantly, not meeting the standard requirements. This may be due to the type or amount of cross-linking agent, resulting in poor durability of the three-proof properties after washing.

[0197] The oil repellency performance before washing is not good: the oil repellency before washing is only level 3, which is barely qualified, which also affects the overall three-proof performance.

[0198] Stain removal performance slightly decreased: Stain removal performance slightly decreased after washing, but still within acceptable range.

[0199] Softness and mechanical properties: Softness and mechanical properties are good, but these advantages cannot completely make up for the shortcomings of the three-proof performance.

[0200] The terms "first" and "second" are used only for descriptive purposes to distinguish objects such as substances from each other, and should not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. For example, without departing from the scope of the embodiments of the present application, the first XX may also be referred to as the second XX, and similarly, the second XX may also be referred to as the first XX. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0201] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for preparing a light and thin all-cotton three-proof fabric, characterized in that: The following steps are involved: S1. Long-staple cotton is used as raw material to prepare 80-100S / 1 high-count cotton yarn through compact spinning process; S2. The high-count cotton yarn is prepared into a fabric by a weaving process, and the fabric is pre-treated; the pre-treatment includes singeing, cold-batch desizing and mercerizing; S3. Dyeing the pre-treated fabric, washing after dyeing, and adjusting the pH value of the fabric to between 4 and 5; S4. Apply three anti-additives to the dyed and washed fabric for finalizing; S5. Pre-shrink the shaped fabric to control the shrinkage rate of the fabric within 3%; and obtain the light and thin all-cotton three-proof fabric.

2. The preparation method according to claim 1, characterized in that: In step S1, the compact spinning process comprises the following steps: Opening and cleaning cotton: the raw cotton fiber should be Xinjiang long-staple cotton with a fiber length of more than 33mm; Carding: The cotton rolls after opening and cleaning are further carded by a carding machine. The cylinder speed is set at 330-350r / min, the doffer speed is 6.2-6.4 / min, the licker-in speed is 810-830r / min, the cylinder cover gauge is 0.25mm / 0.3mm / 0.2mm / 0.25mm / 0.3mm, and the cylinder doffer gauge is 0.13mm. The actual dry weight of the carded sliver is 12.5g. Drawing: The carded sliver obtained after carding is drawn using a two-pass drawing process, with the total drafting multiple set to 6.2, the drawing frame output speed to 16-20m / min, the first-pass delivery speed to 220m / min, and the last-pass delivery speed to 200m / min; Roving: Set the front roller speed to 4.22-4.69m / min and the spindle speed to 480r / min; Spinning: set the small roller gauge to 18x34mm, roller speed to 190rpm, and back zone drafting multiple to 1.4; Winding: Set the drum speed to 1200m / min and the winding tension to 8.0cN.

3. The preparation method according to claim 1, characterized in that: In step S1, the high-count cotton yarn has an average yarn strength of 270-290 cN / Tex, a yarn evenness CV of 11-14%, -50% thin sections of (3±1) pieces / km, +50% thick sections of (55±10) pieces / km, +200% cotton knots of (20±5) pieces / km, a yarn hairiness index H value of 2.0-5.0, and a yarn twist of 1300-1600 twists / m.

4. The preparation method according to claim 1, characterized in that: In step S2, the high-count cotton yarn is prepared into fabric through a weaving process and a sizing process; Sizing process: starch 80-90kg / m 3 , PVA 30-45kg / m 3 , solid content 11%, sizing ink printing length 35-40m / m 3 , moisture regain 4.6-5.8%, sizing tank temperature ≥90℃, viscosity 9-10s, sizing speed 4.1m / min, cylinder tension 27±1kN, warp beam tension 13±2kN, sizing rate controlled at 16-18.5%.

5. The preparation method according to claim 1, characterized in that: In step S2, the pre-treatment process includes the following steps: Singeing: adopt one reverse and two forward singeing process, the flame temperature is 1000-1100℃, the speed is 110-120m / min, the cloth surface becomes smooth, the quality requirement is ≥4 level; Cold stack desizing: Use soda ash 50-70g / L, hydrogen peroxide 15g / L, cold stack scouring agent TF-125LA 10g / L, penetrant ERKANTOL NR 1-2g / L, stack at room temperature for 24 hours and then wash with water, the desizing rate is more than 80%; Mercerizing: light mercerizing process is adopted, the caustic soda concentration is 20-24g / L, the machine speed is 60-70m / min, the temperature is controlled at 15-25℃, and the rolling rate is 65%-75%.

6. The preparation method according to claim 1, characterized in that: In step S3, the dyeing process comprises the following steps: The mercerized cloth is dyed with reactive dyes on a continuous pad dyeing machine. The process is: padding dye solution → hot air pre-drying → drum drying → stacking → padding salt and alkali solution → steam fixation → cold water washing → hot water washing → soap washing → weak acid washing; After dyeing, the fabric is thoroughly washed, and the continuous or jet washing machine washes the fabric multiple times.

7. The preparation method according to claim 1, characterized in that: In step S4, the three-proof auxiliary agent includes the following raw materials: Waterproof and oil-proof agent PHOBOL NB-NH 40-50g / L Crosslinking agent PHOBOL EXT.SFB 25-35g / L Softener Megasoft CEC-01 6-12g / L.

8. The preparation method according to claim 1, characterized in that: In step S4, the baking temperature during the shaping process is 170° C. and the time is 1 minute.

9. A light and thin cotton three-proof fabric, characterized in that: The fabric is prepared by the preparation method according to any one of claims 1 to 8.

10. The light and thin cotton three-proof fabric according to claim 9, characterized in that: The specification of the fabric is 80sx80s+80s+20D, and the warp and weft density is 190x130.

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