CN112981815B - Pure cotton fabric and preparation method and application thereof - Google Patents
Pure cotton fabric and preparation method and application thereof Download PDFInfo
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- CN112981815B CN112981815B CN202110175693.8A CN202110175693A CN112981815B CN 112981815 B CN112981815 B CN 112981815B CN 202110175693 A CN202110175693 A CN 202110175693A CN 112981815 B CN112981815 B CN 112981815B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C19/00—Breaking or softening of fabrics
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Abstract
The invention relates to a pure cotton fabric and a preparation method and application thereof. The preparation method comprises the following steps: desizing pure cotton grey cloth to obtain desized fabric; performing liquid ammonia mercerization on the desized fabric to obtain a liquid ammonia mercerized fabric; beating the liquid ammonia mercerized fabric to obtain a beaten fabric; sanding treatment is carried out on the flapping fabric, the mesh number of sanding media for sanding treatment is 400-1200 meshes, the feeding speed for sanding treatment is 8-30 m/min, the tension of a large cylinder for sanding treatment is 15-45 kg, and the energy of a small cylinder is 1000-1400 r/min. The method ensures that the prepared pure cotton fabric has both good tearing strength and good softness, and both sides of the fabric have soft handfeel.
Description
Technical Field
The invention relates to the technical field of cotton fabric processing, in particular to a pure cotton fabric and a preparation method and application thereof.
Background
Pure cotton fabric is a textile material widely used in garment processing. Clothing made of pure cotton fabric often has good air permeability and warm keeping performance. With the diversified development of clothing products, the quality requirements of consumers on pure cotton fabrics are higher and higher. For example, consumers desire pure cotton fabrics that have good softness while having good tear strength, among other properties. However, it is often difficult to obtain a soft hand while maintaining good tear strength of the current pure cotton fabrics obtained by conventional methods.
Disclosure of Invention
Based on the above, there is a need for a pure cotton fabric with both tearing strength and softness, and a preparation method and application thereof.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a preparation method of pure cotton fabric comprises the following steps:
desizing pure cotton grey cloth to obtain desized fabric;
performing liquid ammonia mercerization on the desized fabric to obtain a liquid ammonia mercerized fabric;
beating the liquid ammonia mercerized fabric to obtain a beaten fabric;
and carrying out sanding treatment on the beating fabric, wherein the mesh number of a sanding medium for sanding treatment is 400-1200 meshes, the feeding speed for sanding treatment is 8-30 m/min, the tension of a large cylinder for sanding treatment is 15-45 kg, and the energy of a small cylinder is 1000-1400 r/min.
In one embodiment, the time of the beating treatment is 35min to 150min, and the temperature of the beating treatment is 85 ℃ to 120 ℃.
In one embodiment, the beating process is a mechanical dry beating process, the beating times of the mechanical dry beating process are 6 times, and the beating speed is 200m/min, 300m/min, 400m/min, 500m/min, 600m/min and 700m/min in sequence.
In one embodiment, the sanding medium of the sanding process is a carborundum sanding roller.
In one embodiment, the sanding process comprises the steps of:
and (3) sequentially passing the flapping fabrics through a plurality of carborundum sanding rollers with different meshes.
In one embodiment, the diamond grinding rollers with different mesh numbers are 600 meshes and 400 meshes respectively, and a plurality of 600-mesh diamond grinding rollers and a plurality of 400-mesh diamond grinding rollers are alternately arranged in sequence.
In one embodiment, the 600 mesh emery sanding roller and the 400 mesh emery sanding roller rotate in opposite directions.
In one embodiment, the feeding speed of the liquid ammonia mercerization is 30-65 m/min, and the soaking time of the desized fabric in the liquid ammonia is 10-25 s.
A pure cotton fabric prepared by the preparation method as described in any one of the above embodiments.
The application of the pure cotton fabric in the production of ready-made clothes is described.
The preparation method of the pure cotton fabric comprises the following steps: desizing pure cotton grey cloth to obtain desized fabric; performing liquid ammonia mercerization on the desized fabric to obtain a liquid ammonia mercerized fabric; beating the liquid ammonia mercerized fabric to obtain a beating fabric; sanding treatment is carried out on the flap fabric, the mesh number of sanding media for sanding treatment is 400-1200 meshes, the feeding speed for sanding treatment is 8-30 m/min, the tension of a large cylinder for sanding treatment is 15-45 kg, and the energy of a small cylinder is 1000-1400 r/min. In the preparation method, desizing treatment is carried out on pure cotton grey cloth, then liquid ammonia mercerizing treatment is carried out on the desized fabric, then beating treatment is carried out on the liquid ammonia mercerizing fabric, and then sanding treatment is carried out on the beating fabric. Through the cooperation of the treatment methods, the internal skeleton structure of the fabric can be effectively improved, the fabric is soft and fluffy, the peach skin-like hand feeling is given to the fabric, the fabric can still keep good tearing strength while good softness is obtained, the prepared pure cotton fabric has good tearing strength and good softness, the comfort degree of the pure cotton fabric is effectively improved, and the service life of the pure cotton fabric is effectively prolonged. In addition, through the cooperation of the treatment methods, the pure cotton fabric can obtain good tearing strength and softness, and meanwhile, the softness difference of the two sides of the fabric can be effectively reduced.
Detailed Description
The present invention will be described in detail with reference to the following embodiments in order to make the aforementioned objects, features and advantages of the invention more comprehensible. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
An embodiment of the invention provides a preparation method of a pure cotton fabric. The preparation method comprises the following steps: desizing pure cotton grey cloth to obtain desized fabric; performing liquid ammonia mercerization on the desized fabric to obtain a liquid ammonia mercerized fabric; beating the liquid ammonia mercerized fabric to obtain a beating fabric; sanding treatment is carried out on the flap fabric, the mesh number of sanding media for sanding treatment is 400-1200 meshes, the feeding speed for sanding treatment is 8-30 m/min, the tension of a large cylinder for sanding treatment is 15-45 kg, and the energy of a small cylinder is 1000-1400 r/min.
The pure cotton fabric has the advantages of strong air permeability, good heat retention and the like, but due to the characteristics of the cotton fiber, the pure cotton fabric is often compact, so that the problem of poor tearing resistance of the pure cotton fabric is easy to occur in the using process. In order to improve the tearing strength of the pure cotton fabric, the traditional method usually uses more chemical agents to treat the pure cotton fabric, so that the tearing strength of the pure cotton fabric can be improved to a certain extent, but the use of the chemical agents usually makes the obtained pure cotton fabric have stiff hand feeling and is difficult to obtain soft hand feeling. Namely, the conventional method has difficulty in well satisfying both good tear strength and good softness. In this regard, the inventor has studied the preparation method of the pure cotton fabric by combining the properties of the pure cotton fabric, and has obtained a preparation method of the pure cotton fabric which can effectively give consideration to both tearing strength and softness of the pure cotton fabric as in this embodiment. In the preparation method, desizing treatment is carried out on pure cotton grey cloth, then liquid ammonia mercerizing treatment is carried out on desized fabric, beating treatment is carried out on the liquid ammonia mercerizing fabric, and then sanding treatment is carried out on the beating fabric. Through the cooperation of the treatment methods, the internal skeleton structure of the fabric can be effectively improved, the fabric becomes soft and fluffy, the peach skin-like hand feeling is given to the fabric, the fabric can still keep good tearing strength while good softness is obtained, the prepared pure cotton fabric has good tearing strength and good softness, the comfort degree of the pure cotton fabric is effectively improved, and the service life of the pure cotton fabric is effectively prolonged.
In addition, through the cooperation of the treatment methods, the pure cotton fabric can obtain good tearing strength and softness, and meanwhile, the softness difference of the two sides of the fabric can be effectively reduced. That is, in the pure cotton fabric obtained by the conventional method, the surface with wool often has better softness, and the surface without wool is obviously harder, so that the quality of the pure cotton fabric is difficult to meet the high requirement of consumers on the softness of the pure cotton fabric. In the preparation method in the embodiment, the softness difference between the two sides of the fabric can be greatly reduced through the cooperation of the treatment methods, and the overall quality of the pure cotton fabric is well improved.
In one specific example, the method for preparing the pure cotton fabric comprises the following steps: desizing pure cotton grey cloth to obtain desized fabric; performing liquid ammonia mercerization on the desized fabric to obtain a liquid ammonia mercerized fabric; beating the liquid ammonia mercerized fabric to obtain a beaten fabric; sanding treatment is carried out on the flap fabric, the mesh number of sanding media for sanding treatment is 400-1200 meshes, the feeding speed for sanding treatment is 8-30 m/min, the tension of a large cylinder for sanding treatment is 15-45 kg, and the energy of a small cylinder is 1000-1400 r/min. The pure cotton fabric with good tearing strength, good softness and small difference of softness of two surfaces can be prepared by sequentially carrying out desizing treatment, liquid ammonia mercerizing treatment, beating treatment and sanding treatment on the pure cotton grey cloth.
In a preferred embodiment, the production process according to the invention is particularly suitable for producing combed yarn cotton fabrics. The combed yarn pure cotton fabric prepared by the preparation method disclosed by the invention can be used for obtaining the pure cotton fabric with better softness, better tearing strength and smaller difference of two sides of the fabric. That is, in this preferred embodiment, the cotton fabric is a combed yarn pure cotton fabric. The preparation method of the pure cotton fabric comprises the following steps: desizing combed yarn pure cotton grey cloth to obtain desized fabric; performing liquid ammonia mercerization on the desized fabric to obtain a liquid ammonia mercerized fabric; beating the liquid ammonia mercerized fabric to obtain a beaten fabric; sanding treatment is carried out on the flap fabric, the mesh number of sanding media for sanding treatment is 400-1200 meshes, the feeding speed for sanding treatment is 8-30 m/min, the tension of a large cylinder for sanding treatment is 15-45 kg, and the energy of a small cylinder is 1000-1400 r/min.
It is understood that, in one specific example, the pure cotton fabric is prepared by the following method: desizing combed yarn pure cotton grey cloth to obtain desized fabric; performing liquid ammonia mercerization on the desized fabric to obtain a liquid ammonia mercerized fabric; beating the liquid ammonia mercerized fabric to obtain a beating fabric; sanding treatment is carried out on the flap fabric, the mesh number of sanding media for sanding treatment is 400-1200 meshes, the feeding speed for sanding treatment is 8-30 m/min, the tension of a large cylinder for sanding treatment is 15-45 kg, and the energy of a small cylinder is 1000-1400 r/min. The pure cotton fabric with better softness, stronger tearing strength and smaller difference of two sides of the fabric can be prepared by sequentially carrying out desizing treatment, liquid ammonia mercerizing treatment, beating treatment and sanding treatment on the combed yarn pure cotton grey cloth.
Further, the pure cotton gray fabric is preferably a pure cotton woven fabric gray fabric. More preferably, the pure cotton grey cloth has a yarn count of 40S to 100S. As several choices of pure cotton grey cloth yarn count, the pure cotton grey cloth yarn count can be selected to be 40S, 50S, 60S, 80S/2 or 100S/2, etc.
It is understood that in the method for preparing a pure cotton fabric, when the beating fabric is subjected to the sanding treatment, the number of meshes of the sanding medium for the sanding treatment may be, but is not limited to, 400 meshes, 500 meshes, 600 meshes, 700 meshes, 800 meshes, 900 meshes, 1000 meshes, 1100 meshes, and 1200 meshes. The feed rate of the sanding treatment may be, but is not limited to, 8m/min, 9m/min, 10m/min, 11m/min, 12m/min, 13m/min, 14m/min, 15m/min, 18m/min, 20m/min, 25m/min, 28m/min, and 30m/min. The large cylinder tension for the sanding process may be, but is not limited to, 15kg, 16kg, 17kg, 18kg, 19kg, 20kg, 21kg, 22kg, 23kg, 24kg, 25kg, 26kg, 27kg, 28kg, 29kg, 30kg, 32kg, 35kg, 38kg, 40kg, 42kg, and 45kg. The small cylinder energies of the sanding process may be, but are not limited to, 1000 rpm, 1100 rpm, 1200 rpm, 1300 rpm, and 1400 rpm. Preferably, the feed rate for the sanding process is 12m/min, the large cylinder tension is 25kg, and the small cylinder energy is 1400 rpm.
In the preparation method of the embodiment, the beating fabric is subjected to the sanding treatment by selecting the appropriate mesh number of sanding media, a small feeding speed, a low large cylinder tension and a large small cylinder energy, so that the internal structure of the beating fabric can be further finished, the obtained pure cotton fabric keeps good tearing strength, and the softness of the pure cotton fabric is improved. Meanwhile, in the preparation method, the surface of the pure cotton fabric can show a peach skin velvet-like hand feeling by matching with the sanding treatment, so that the comfort level of the pure cotton fabric is improved. In addition, by matching with the sanding treatment, both sides of the pure cotton fabric can have good softness, the consistency of the softness of both sides of the pure cotton fabric is effectively improved, the difference of the softness of both sides of the pure cotton fabric is reduced, and the quality of the pure cotton fabric is improved. It will also be appreciated that the mesh size of the sanding medium, feed rate, large cylinder tension, and small cylinder energy during the sanding process may be selected and combined arbitrarily among the parameters listed above, respectively.
Preferably, the sanding medium of the sanding process is a emery sanding roller. The beating fabric is sanded through the carborundum sanding roller, so that a better sanding effect can be obtained, and meanwhile, the fabric can be effectively prevented from being damaged. Specifically, the sanding process comprises the following steps: the beating fabric is sequentially passed through a plurality of carborundum sanding rollers with different meshes. The lapping fabric is sequentially lapped through the plurality of carborundum sanding rollers with different mesh numbers, the uniformity of sanding can be effectively improved, the plurality of carborundum sanding rollers with different mesh numbers are matched for use, the sanding effect of the sanding rollers can be better complemented, and the sanding effect is improved.
Further preferably, the emery sanding rollers of different mesh numbers have mesh numbers of 600 mesh and 400 mesh, respectively. The method is characterized in that a 600-mesh carborundum sanding roller and a 400-mesh carborundum sanding roller are adopted to sequentially roughen the patting fabric, the patting fabric sequentially passes through a plurality of 600-mesh carborundum sanding rollers and 400-mesh carborundum sanding rollers, corresponding feeding speed, large cylinder tension and small cylinder energy are matched, desizing treatment, liquid ammonia mercerizing treatment and patting treatment are matched, the peach skin effect on the surface of the pure cotton fabric can be more obvious, and the softness and the quality of the pure cotton fabric are improved.
Still further preferably, a plurality of 600-mesh diamond grinding rolls and a plurality of 400-mesh diamond grinding rolls are alternately arranged in sequence. At the moment, in the sanding process of the flapping fabric, the emery sanding roller shows periodic change, so that the sanding effect is better complemented, and the sanding effect is favorably improved. Still further preferably, there are 12 emery sanding rollers of 600 mesh and 12 emery sanding rollers of 400 mesh. When the number of the carborundum sanding rollers is too small, a good sanding effect is difficult to achieve, and when the number of the carborundum sanding rollers is too large, energy consumption is increased, and meanwhile, excessive sanding possibly damages the fabric. Still further preferably, the 600-mesh diamond grinding roll and the 400-mesh diamond grinding roll are rotated in opposite directions.
As an alternative to the sanding process, a LAFER sanding machine was used for the sanding process.
In the preparation process of the pure cotton fabric, as a plurality of specific condition parameters of the beating treatment, the beating treatment time is 35-150 min, and the beating treatment temperature is 85-120 ℃. Specifically, the time of the beating process may be, but is not limited to, 35min, 36min, 37min, 38min, 39min, 40min, 41min, 42min, 43min, 44min, 45min, 50min, 60min, 70min, 80min, 90min, 100min, 110min, 120min, 130min, 140min, and 150min. The temperature of the beating treatment may be, but is not limited to, 85 ℃, 86 ℃, 87 ℃, 88 ℃, 89 ℃, 90 ℃, 91 ℃, 92 ℃, 93 ℃, 94 ℃, 95 ℃, 100 ℃, 105 ℃, 110 ℃, 115 ℃ and 120 ℃. It will be appreciated that the time and temperature of the beating process may be arbitrarily selected and combined correspondingly among the above listed parameters, respectively. Preferably, the time for the beating process is 40min and the temperature for the beating process is 90 ℃.
Specifically, the tapping process is a mechanical tapping process. Further, the beating process is a mechanical dry beating process, the beating times of the mechanical dry beating process are 6 times, and the beating speed of each time is 200m/min, 300m/min, 400m/min, 500m/min, 600m/min and 700m/min in sequence. As an alternative to the mechanical beating device, the beating process employs an AIRO QUATTRO beater.
In the preparation process of the pure cotton fabric, as some specific condition parameters of liquid ammonia mercerization, the feeding speed of the liquid ammonia mercerization is 30-65 m/min, and the soaking time of the desized fabric in the liquid ammonia is 10-25 s. Specifically, the feed rate of the liquid ammonia mercerization may be, but is not limited to, 30m/min, 35m/min, 40m/min, 50m/min, 55m/min, 56m/min, 57m/min, 58m/min, 59m/min, 60m/min, 61m/min, 62m/min, 63m/min, 64m/min, and 65m/min. The immersion time of the desized fabric in liquid ammonia may be, but is not limited to, 10s, 11s, 12s, 13s, 14s, 15s, 16s, 17s, 18s, 19s, 20s, 21s, 22s, 23s, 24s, and 25s. It is understood that the feeding speed of the mercerization of liquid ammonia and the immersion time of the desized fabric in the liquid ammonia can be respectively arbitrarily selected and combined correspondingly in the parameters listed above. Preferably, the feeding speed of the mercerization of the liquid ammonia is 60m/min, and the soaking time of the desized fabric in the liquid ammonia is 20s. It is understood that the liquid ammonia mercerization can be performed on a liquid ammonia mercerizer.
In a specific example, the method further comprises the following steps after the desizing treatment of the pure cotton grey cloth and before the liquid ammonia mercerization treatment of the desized fabric: and carrying out alkali liquor mercerization on the desized fabric, wherein the time of the alkali liquor mercerization is 55-70 s, and the baume degree of the alkali liquor is 18-50 Bee. For example, the mercerization time of the lye can be 55s, 58s, 60s, 62s, 65s, 68s and 70s, and the baume degree of the lye is 18 DEG Be, 20 DEG Be, 22 DEG Be, 24 DEG Be, 25 DEG Be, 30 DEG Be, 35 DEG Be, 40 DEG Be, 45 DEG Be and 50 DEG Be. It is understood that the time of mercerization of the lye and the baume degree of the lye may be correspondingly selected and combined arbitrarily among the parameters listed above, respectively. Preferably, the mercerization time of the alkali liquor is 60s, and the baume degree of the alkali liquor is 24 DEG Be. It is also understood that the lye is a sodium hydroxide solution. The alkaline mercerizing treatment can be carried out on a mercerizing machine.
Optionally, the method further includes the following steps after the liquid ammonia mercerized fabric is beaten and before the beaten fabric is sanded: performing softening oil treatment on the flapping fabrics, wherein the feeding speed of the softening oil treatment is 50-100 m/min, and the concentration of the softening oil during the softening oil treatment is 50-120 g/L. Specifically, the feed rate of the super-softening oil treatment may be 50m/min, 55m/min, 60m/min, 65m/min, 70m/min, 75m/min, 80m/min, 85m/min, and 90m/min. The softening oil concentration in the softening oil treatment may be 50g/L, 60g/L, 70g/L, 80g/L, 90g/L, 100g/L, 110g/L and 120g/L. It will be appreciated that the feed rate for the over-softening treatment and the softening concentration at the time of the over-softening treatment may be correspondingly selected and combined arbitrarily among the parameters listed above, respectively. Preferably, the feeding speed of the over-softening oil treatment is 80m/min, and the softening oil concentration of the over-softening oil treatment is 120g/L. It is also understood that the soft oil is a silicone soft oil. The over-softening oil treatment can be performed on a setting machine.
In one specific example, the method further comprises the following steps after the softening treatment and before the sanding treatment of the beating fabric: the fabric after the oil softening treatment is subjected to a peracid treatment for adjusting the pH of the fabric surface. Further, the fabric after the softening oil treatment is subjected to peracid treatment to adjust the surface pH of the fabric to 4.5 to 7.5. The pH value of the fabric surface is adjusted to a required range according to production requirements so as to further improve the quality of the pure cotton fabric. It is understood that the peracid treatment can be performed on a setter.
In another specific example, the sanding treatment of the patted fabric further comprises the following steps: and performing preshrinking treatment on the fabric after the sanding treatment. Further, the feeding speed of the pre-shrinking treatment is 30-80 m/min. For example, the feed rate of the preshrinking process may be, but is not limited to, 30m/min, 35m/min, 40m/min, 45m/min, 48m/min, 50m/min, 55m/min, 60m/min, 65m/min, 70m/min, 75m/min, and 80m/min. Preferably, the feeding speed of the pre-shrinking treatment is 50m/min. The shrinkage rate of the fabric is reduced through the preshrinking treatment, and meanwhile, the softness of the hand feeling of the fabric can be further improved. It will be appreciated that the pre-shrinking process may be performed on a pre-shrinking machine.
Yet another embodiment of the present invention provides a pure cotton fabric. The pure cotton fabric is prepared by any preparation method. The pure cotton fabric is good in softness and tearing strength, the difference of the two sides of the fabric is small, the quality of ready-made clothes can be greatly improved, and the wearing comfort of the ready-made clothes is improved.
In addition, the invention also provides an application of the pure cotton fabric in the preparation of ready-made clothes. In particular, the ready-made garment is a shirt, a sports garment or a leisure garment.
The following are specific examples.
Example 1
The product information of the pure cotton grey cloth in this embodiment is: the combed yarn pure cotton grey cloth has yarn count warps and wefts of 40S and density of 120 multiplied by 80.
The preparation method of the pure cotton fabric in the embodiment comprises the following steps:
s101: and (4) carrying out singeing treatment on the pure cotton grey cloth to obtain the singed fabric. The cotton fabric grey cloth reaches the desizing standard through singeing treatment. The singeing method adopts a conventional singeing process.
S102: and (4) desizing the singed fabric to obtain a desized fabric. The desizing method adopts a conventional desizing process.
S103: and (3) carrying out alkali liquor mercerization on the desized fabric on a mercerizing machine to obtain alkali liquor mercerized fabric. In the mercerizing treatment of the alkali liquor, the alkali liquor is sodium hydroxide solution, the mercerizing treatment time of the alkali liquor is 60s, and the baume degree of the alkali liquor is 24 Bee.
S104: and performing liquid ammonia mercerization on the alkali liquor mercerized fabric on a liquid ammonia mercerizing machine to obtain the liquid ammonia mercerized fabric. The feeding speed of the liquid ammonia mercerization is 60m/min, and the soaking time of the alkali liquor mercerized fabric in the liquid ammonia is 20s.
S105: and (3) mechanically dry-beating the liquid ammonia mercerized fabric on an AIRO QUATTRO beating machine to obtain the beating fabric. The time of the mechanical dry-beating treatment is 40min, the temperature of the mechanical dry-beating treatment is 90 ℃, the beating times of the mechanical dry-beating treatment are 6 times, and the beating speed of each time is 200m/min, 300m/min, 400m/min, 500m/min, 600m/min and 700m/min in sequence.
S106: and (4) performing softening treatment on the flapped fabric on a setting machine to obtain the softened oil fabric. The soft oil is polysiloxane soft oil. The feeding speed of the over-softening oil treatment is 80m/min, and the concentration of the softening oil during the over-softening oil treatment is 120g/L.
S107: and (3) performing peracid treatment on the super-soft oil fabric on a setting machine to adjust the pH of the fabric surface to 7 to obtain peracid fabric.
S108: and (3) sanding the peracid fabric by using a LAFER sanding machine to obtain the sanded fabric. The sanding medium is emery sanding rollers, and there are 12 emery sanding rollers of 600 meshes and 12 emery sanding rollers of 400 meshes. The 12 emery sanding rollers with 600 meshes and the 12 emery sanding rollers with 400 meshes are alternately arranged in sequence, and the rotation directions of the emery sanding rollers with 600 meshes and the emery sanding rollers with 400 meshes are opposite. The feeding speed of sanding treatment is 12m/min, the tension of the large cylinder is 25kg, and the energy of the small cylinder is 1400 revolutions per minute.
S109: and carrying out preshrinking treatment on the sanded fabric on a preshrinking machine. The feeding speed of the pre-shrinking treatment is 50m/min.
After the preshrinking treatment, the pure cotton fabric in this example was obtained.
Example 2
The present embodiment is different from embodiment 1 in that: in S108, the feeding speed of sanding is 8m/min, the tension of a large cylinder of the sanding is 45kg, and the energy of a small cylinder of the sanding is 1000 r/min.
Example 3
The present embodiment is different from embodiment 1 in that: in S108, the feeding speed of the sanding treatment is 30m/min, the tension of a large cylinder of the sanding treatment is 15kg, and the energy of a small cylinder of the sanding treatment is 1400 revolutions per minute.
Comparative example 1
This comparative example differs from example 1 in that: in this embodiment, the pure cotton grey cloth is compact yarn pure cotton grey cloth, and the warp and weft yarns with yarn count are 40S and have a density of 120 × 80.
Comparative example 2
This comparative example differs from example 1 in that: the preparation method comprises the following steps in sequence: singeing treatment, desizing treatment, alkali liquor mercerizing treatment, liquid ammonia mercerizing treatment, softening oil treatment, peracid treatment, sanding treatment and preshrinking treatment. The methods and parameters of the respective processes are the same as those of the examples.
Comparative example 3
This comparative example differs from example 1 in that: the preparation method sequentially comprises the following steps: singeing treatment, desizing treatment, alkali liquor mercerizing treatment, liquid ammonia mercerizing treatment, mechanical dry beating treatment, over-softening oil treatment, peracid treatment and preshrinking treatment. The methods and parameters of the respective processes are the same as those of the examples.
Comparative example 4
This comparative example differs from example 1 in that: in S108, the mesh number of the emery sanding roller is 400 meshes and 220 meshes respectively.
Comparative example 5
This comparative example differs from example 1 in that: in S108, the mesh number of the emery sanding roller is 300 meshes and 220 meshes respectively.
Comparative example 6
This comparative example differs from example 1 in that: in S108, the feeding speed of the sanding treatment is 35m/min, and the large cylinder tension is 50kg.
Comparative example 7
This comparative example differs from example 1 in that: in S108, the feeding speed of the sanding treatment is 35m/min, the tension of the large cylinder is 50kg, and the energy of the small cylinder is 900 revolutions per minute.
Test example
5 gray fabric samples of the same batch are correspondingly selected in the examples 1 to 3 and the comparative examples 1 to 7 respectively for preparation, so that corresponding cotton fabrics are obtained.
The pure cotton fabrics of examples 1 to 3 and comparative examples 1 to 7 were subjected to a tear strength test and a softness test, respectively. The method for testing the softness comprises the following steps: the hand touch method is used for evaluation, a plurality of people are used for grading and grading, then an average value is taken, the higher the score is, the better the score is, and otherwise the hand feeling is poor (the number of people is 5 people in different departments, the evaluation method is a recognized and feasible test method in the textile industry), and the more + the more the + the better the hand feeling is (for example, the softness + + + of the fabric is one grade better than the + +); the highest evaluation grades for smoothness and softness of cotton fabrics are all "+ + + +", the lowest evaluation grades are all "+".
Among them, the results of the softness test of example 1 and comparative example 1 are shown in table 1.
TABLE 1
The softness test results and tear strength test results of examples 1 to 3 and comparative examples 2 to 7 are shown in table 2.
TABLE 2
As can be seen from table 2, the pure cotton fabrics of examples 1 to 3 had good tear strength and good softness, and the difference in softness between both sides of the pure cotton fabric was smaller.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A preparation method of a pure cotton fabric is characterized by comprising the following steps:
desizing combed yarn pure cotton grey cloth to obtain desized fabric;
carrying out alkali liquor mercerization on the desized fabric, wherein the time of the alkali liquor mercerization is 55s to 70s, and the baume degree of the alkali liquor is 18-50 Bee;
performing liquid ammonia mercerization on the fabric subjected to the alkali liquor mercerization to obtain a liquid ammonia mercerized fabric, wherein the feeding speed of the liquid ammonia mercerization is 30-65 m/min, and the soaking time of the fabric subjected to the alkali liquor mercerization in liquid ammonia is 10-25s;
performing mechanical dry-beating treatment on the liquid ammonia mercerized fabric to obtain a beating fabric; the time of the mechanical dry beating is 35min to 150min, the temperature of the mechanical dry beating is 85 ℃ to 120 ℃, the beating times of the mechanical dry beating are 6 times, and the beating speed of each time is 200m/min, 300m/min, 400m/min, 500m/min, 600m/min and 700m/min in sequence;
performing soft oil treatment on the flapping fabric, wherein the feeding speed of the soft oil treatment is 50-100 m/min, and the concentration of the soft oil during the soft oil treatment is 50-120 g/L;
performing peracid treatment on the fabric after the softening oil treatment to adjust the surface pH of the fabric to 4.5-7.5;
sanding the fabric after the peracid treatment, wherein a sanding medium for the sanding treatment is a carborundum sanding roller, and the sanding treatment comprises the following steps: and (2) enabling the fabric after peracid treatment to sequentially pass through a plurality of emery sanding rollers with different meshes, wherein the meshes of the emery sanding rollers with different meshes are 600 meshes and 400 meshes respectively, the emery sanding rollers with 600 meshes and the emery sanding rollers with 400 meshes are sequentially and alternately arranged, the rotating directions of the emery sanding rollers with 600 meshes and the emery sanding rollers with 400 meshes are opposite, the feeding speed of sanding treatment is 8-30 m/min, the tension of a large cylinder for sanding treatment is 15kg-45kg, and the energy of a small cylinder is 1000-1400 rpm.
2. The method for preparing a pure cotton fabric according to claim 1, wherein the time of the mechanical dry-beating treatment is 40min, and the temperature of the mechanical dry-beating treatment is 90 ℃.
3. The method of claim 1, wherein the sanding process has a feed rate of 12m/min, a large cylinder tension of 25kg, and a small cylinder energy of 1400 rpm.
4. The method of making purified cotton fabric of any one of claims 1~3 wherein the mercerization time of the lye is 60 seconds and the baume of the lye is 24 ° B.
5. The method of claim 1~3, wherein the feed rate of said mercerization of liquid ammonia is 60m/min and the immersion time of said desized fabric in liquid ammonia is 20s.
6. The method of making a purified cotton fabric of claim 1~3 wherein there are 12 emery sanding rollers of 600 mesh and 12 emery sanding rollers of 400 mesh.
7. The method of making a purified cotton fabric of any one of claims 1~3 wherein the infeed rate for the over-softening is 80m/min and the concentration of the softening oil is 120g/L for the over-softening; and/or the softening oil is polysiloxane softening oil when the softening oil is treated.
8. The method of making a purified cotton fabric of any of claims 1~3 further comprising the step after said sanding: pre-shrinking the fabric after sanding; the feeding speed of the pre-shrinking treatment is 30-80 m/min.
9. A pure cotton fabric prepared by the method of any one of claims 1~8.
10. Use of the pure cotton fabric of claim 9 for making a garment.
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