CN115522311A - Ultraviolet-proof all-cotton fabric manufacturing process - Google Patents
Ultraviolet-proof all-cotton fabric manufacturing process Download PDFInfo
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- CN115522311A CN115522311A CN202211116765.2A CN202211116765A CN115522311A CN 115522311 A CN115522311 A CN 115522311A CN 202211116765 A CN202211116765 A CN 202211116765A CN 115522311 A CN115522311 A CN 115522311A
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- 238000009999 singeing Methods 0.000 claims abstract description 14
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- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 8
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- 235000011152 sodium sulphate Nutrition 0.000 claims description 4
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Images
Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
- D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/38—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using reactive dyes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/82—Textiles which contain different kinds of fibres
- D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
- D06P3/8219—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and amide groups
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- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
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- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/061—Load-responsive characteristics elastic
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/22—Physical properties protective against sunlight or UV radiation
Abstract
A manufacturing process of an ultraviolet-proof all-cotton fabric comprises the steps of weaving to obtain soft and elastic all-cotton gray cloth by adjusting the proportion of cotton fibers and spandex fibers; sequentially carrying out a cloth loosening process, a blank fixing process and a singeing process on the all-cotton grey cloth to obtain a relatively smooth all-cotton fabric; performing a vat-dropping dyeing process, and by adapting and processing the ultraviolet absorbent and the dye in the dyeing stage, adopting an exhaustion method mode, enabling the ultraviolet absorbent and the reactive dye to be used in the same bath in the dyeing stage and linking with cotton fibers to realize the dye-uptake and fixation; and (5) drying and shaping. Through the matching and process research of the ultraviolet absorbent and the dye in the dyeing stage and the innovative adoption of an exhaustion method mode, the ultraviolet absorbent and the reactive dye are used in the same bath in the dyeing stage and are permanently linked with the cotton fiber, so that the dye-uptake and the fixation effect are excellent.
Description
Technical Field
The invention relates to the technical field of fabrics, and relates to a manufacturing process of an ultraviolet-proof all-cotton fabric.
Background
The existing sun-proof clothes are made of relatively fine chemical fiber woven materials, are light, thin and easy to carry, but have poor air permeability and hygroscopicity, are easy to smolder and sweat when worn, and are not good in body feeling comfort.
The cotton fabric is the preferred material for summer clothing because of the characteristics of air permeability, sweat absorption, softness and no stimulation. However, because the chemical structure of the cotton fiber does not contain functional groups which can absorb in the near ultraviolet region, the ultraviolet protection capability of the cotton fiber, especially undyed pure white fabric, is very weak.
Therefore, the anti-ultraviolet functional finishing of the cotton fabric can have good wearing comfort and protection.
Disclosure of Invention
The invention mainly solves the technical problem of how to carry out ultraviolet-resistant functional finishing on cotton fabrics, so that the cotton fabrics have good wearing comfort and protection.
According to a first aspect, an embodiment provides a process for manufacturing an ultraviolet-proof all-cotton fabric, which comprises the following steps:
by adjusting the proportion of the cotton fibers and the spandex fibers, weaving to obtain the soft and elastic combined all-cotton gray cloth;
sequentially carrying out a cloth loosening process, a blank fixing process and a singeing process on the all-cotton grey cloth to obtain a relatively smooth all-cotton fabric;
performing a vat-dropping dyeing process, and enabling the ultraviolet absorbent and the reactive dye to be used in one bath in the dyeing stage by adopting an exhaustion method through the matching and process of the ultraviolet absorbent and the dye in the dyeing stage and linking with cotton fibers to realize the dye-uptake and fixation;
and (5) drying and shaping.
Optionally, the cylinder dropping dyeing process is performed by adapting and processing the ultraviolet absorber and the dye at the dyeing stage in a way of an exhaustion method, and the ultraviolet absorber and the reactive dye are used in one bath at the dyeing stage and are linked with the cotton fiber to realize the dye-uptake and fixation, and the process comprises the following steps:
using a normal temperature and normal pressure dyeing machine, and taking 80 percent of the weight of the effective load cloth as a calculation standard to ensure that the parameters of the dyeing process machine reach the following values: the bath ratio is less than 1:10, the meter weight is 245g/m-250g/m, the web length: 80m-100m, main pump speed: 45 percent, the lifting motor is more than or equal to 300m/min, anhydrous sodium sulphate is added to fix the ultraviolet absorbent at the temperature of 80 ℃, and then, a complete absorption method is adopted: adding 1-3% of color fixing agent and wet fastness promoter, controlling pH at 6-7, temperature at 40% and time at 30 min.
Optionally, through adjusting the ratio of cotton fiber and spandex fiber, weave and obtain the soft elasticity combination's cotton greige cloth entirely and include:
the yarn is 50S cotton yarn and 20D spandex, wherein the cotton yarn is prepared from 50% of long stapled cotton and 50% of fine stapled cotton, and the spandex is lycra fiber.
Optionally, the method further includes: the fabric is woven by using a knitting single-side circular knitting machine, the machine is adjusted to be 28G 30', and the knitting single-side circular knitting machine comprises a row of needles and triangular rows, wherein one cycle of the row of needles is 2 needles in total, and one cycle of the three rows of needles is 1 wool in total.
Optionally, the cloth loosening process includes the steps of: and taking out the gray cloth, placing the gray cloth on a cloth loosening machine, drawing the gray cloth and fixing the gray cloth at a corresponding position, and turning on an operation switch to start cloth loosening.
Optionally, the embryo fixing process includes the steps of: and (3) using a blank fixing machine, setting the temperature at 190-200 ℃, realizing blank fixing treatment, fixing the cloth, and avoiding crease or dead mark generated by shrinkage of the blank cloth in the cylinder-dropping dyeing process.
Optionally, the singeing process includes the steps of: singeing the gray cloth by using a singeing machine, controlling the speed at 80-100m/min and the flame temperature at 800-900 ℃ to burn off hairiness on the surface of the gray cloth and make the fabric smooth.
Optionally, the drying and shaping include the steps of:
cutting and pressing water into the wet cloth;
the setting machine is used in the design, wherein the setting machine parameter is: the temperature is (160-165 ℃) multiplied by 8, the width: 165cm, rolling pressure of 4.0Kg, total excess of 12-16%, machine speed of 23-26 m/min, air quantity of upper 95% and lower 90%, and tail spray humidification rate of 45-60%.
Optionally, the method further includes:
pre-shrinking, namely pre-shrinking the fabric by using a pre-shrinking machine to control the shrinkage rate of the fabric;
inspecting the cloth and warehousing, inspecting the cloth by using a cloth inspecting machine, and packaging and warehousing by using an automatic packaging machine.
Optionally, the step of checking the cloth warehouse further comprises: screening the specification and the internal quality of the finished fabric, comprising the following steps: and (3) screening the grammage, the width, the shrinkage, the washing distortion rate, the pH value, the washing color fastness, the dry friction color fastness, the wet friction color fastness, the perspiration stain color fastness, the light and perspiration composite color fastness, the formaldehyde content, the ultraviolet ray resistance, the elasticity, the contact cool feeling coefficient and the air permeability.
According to the manufacturing process of the ultraviolet-proof all-cotton fabric of the embodiment, the proportion of the cotton fibers and the spandex fibers is adjusted, the all-cotton gray cloth combined with the softness and the elasticity is obtained through weaving, then the adaptation and the process research of the ultraviolet absorbent and the dye in the dyeing stage are carried out on the all-cotton gray cloth, the mode of an absorption method is innovatively adopted, the ultraviolet absorbent and the reactive dye are used in the same bath in the dyeing stage and are in permanent connection with the cotton fibers, and the ultraviolet-proof all-cotton fabric has excellent dyeing rate and fixation effect. Compared with the traditional ultraviolet-proof chemical fiber fabric, the sun-proof fabric has the advantages of air permeability, sweat absorption, softness, elasticity, cool touch feeling, no stimulation and the like due to the all-cotton material and the elastic structure; meanwhile, the ultraviolet absorbent is tightly combined with cotton fiber, the tested UPF is more than 50, and the washing fastness is higher.
Drawings
Fig. 1 is a flow chart of a process for manufacturing an ultraviolet-proof all-cotton fabric provided by the embodiment;
FIG. 2 is a graph of a cylinder-dropping dyeing process provided in this embodiment;
fig. 3 is a schematic diagram of the knitting needle arrangement and the cam arrangement of the cotton greige cloth provided in this embodiment.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of clearly describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where a certain sequence must be followed.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
As known from the background art, the existing sun-proof fabric is basically made of fiber woven fabric, is air-tight and low in wearability, and cotton fabric has the characteristics of air permeability, sweat absorption, softness and no stimulation, but has low protective performance, so that an ultraviolet-proof all-cotton fabric manufacturing process needs to be provided, and the cotton fabric sun-proof fabric is obtained.
According to the ultraviolet-proof all-cotton fabric manufacturing process in the embodiment, the proportion of the cotton fibers and the spandex fibers is adjusted, the all-cotton gray cloth combined with the softness and the elasticity is obtained through weaving, then the all-cotton gray cloth is subjected to adaptation and process research on the ultraviolet absorbent and the dye in the dyeing stage, the mode of an exhaustion method is innovatively adopted, the ultraviolet absorbent and the reactive dye are used in the same bath in the dyeing stage and are in permanent connection with the cotton fibers, and the ultraviolet-proof all-cotton fabric manufacturing process has excellent dyeing rate and fixation effect. Compared with the traditional ultraviolet-proof chemical fiber fabric, the sun-proof fabric has the advantages of air permeability, sweat absorption, softness, elasticity, cool touch feeling, no stimulation and the like due to the all-cotton material and the elastic structure; meanwhile, the ultraviolet absorbent is tightly combined with the cotton fiber, the tested UPF is more than 50, and the washing fastness is higher.
Referring to fig. 1 to 3, the present embodiment provides a manufacturing process of an ultraviolet-proof all-cotton fabric, including:
In this embodiment, according to the standard that the pore transmittance is less than 5%, the long stapled cotton is preferably matched with the elastic fiber, and the high-count, high-density, light and thin knitted plain structure is woven by the high-stitch-count circular knitting machine, so that the fabric is comfortable and elastic, and the sun-proof fabric manufactured by using the air has the advantages of air permeability, sweat absorption, softness, elasticity, cool touch, no stimulation and the like due to the all-cotton material and the elastic structure.
In this embodiment, through adjusting the ratio of cotton fiber and spandex fiber, weave the cotton greige cloth that obtains soft elasticity combination includes: the yarn adopts 50S cotton yarn and 20D spandex, wherein the cotton yarn adopts the proportion of 50 percent of long stapled cotton and 50 percent of fine stapled cotton, the strength and the wear resistance of the fabric can be enhanced by adding the long stapled cotton, and the spandex adopts Lycra fiber with better elastic stretching and recovery. The yarn is woven by combining a knitting single-side circular knitting machine, the machine is adjusted to be 28G 30', as shown in figure 3, the yarn comprises a row of needles and a triangular row, wherein 2 needles are in one cycle in the row of needles, and 1 wool is in one cycle in the three-way row.
It should be noted that the gray cloth used in this embodiment is all the cotton gray cloth obtained by the above weaving process.
And 2, sequentially carrying out a cloth loosening process, a blank fixing process and a singeing process on the all-cotton blank cloth to obtain the bright and clean all-cotton fabric.
The cloth loosening process comprises the following steps: and taking out the gray cloth, placing the gray cloth on a cloth loosening machine, drawing the gray cloth and fixing the gray cloth at a corresponding position, and turning on an operation switch to start cloth loosening.
The blank fixing process comprises the following steps: and (3) using a blank fixing machine, setting the temperature at 190-200 ℃, realizing blank fixing treatment, fixing the cloth, and avoiding crease or dead mark generated by shrinkage of the blank cloth in the cylinder-dropping dyeing process.
The singeing process comprises the following steps: singeing the grey cloth by using a singeing machine, controlling the speed at 80-100m/min and the flame temperature at 800-900 ℃ to burn down hairiness on the surface of the grey cloth, so that the fabric is smooth and clean.
The fabric obtained by the cloth loosening process, the blank fixing process and the singeing process is neat and smooth and has stronger wear resistance.
And 3, performing a vat-dropping dyeing process, and enabling the ultraviolet absorbent and the reactive dye to be used in one bath in the dyeing stage by adopting a suction exhaustion method through the matching and process of the ultraviolet absorbent and the dye in the dyeing stage and linking with the cotton fiber to realize the dye-uptake and fixation.
In this embodiment, an atmospheric-temperature and atmospheric-pressure dyeing machine, such as a rison atmospheric-temperature and atmospheric-pressure overflow dyeing machine, is used, and parameters of the dyeing process machine are made to reach the following value by taking 80% of the effective load cloth as a calculation standard: the bath ratio is less than 1:10, the rice weight is 245g/m-250g/m, the web length: 80m-100m, main pump speed: 45% and the lifting motor is larger than or equal to 300m/min, please refer to fig. 2 in combination, a graph of the relationship between temperature and time in the cylinder-dropping dyeing process adopted in the embodiment, wherein:
a is 0.1-0.5g/l penetration enhancer;
a is 0.5g/l dye bath regulator;
b is 1.0-2.0% of ultraviolet absorbent (relative to the weight of the fabric);
b is X% direct dye;
c is 10g-20g/l anhydrous sodium sulphate (1/5 and 4/5).
It is to be noted that the anhydrous sodium sulphate is added at 80 ℃ to fix the UV absorber, after which the exhaustion method is used: adding 1-3% of color fixing agent and wet fastness promoter, controlling pH at 6-7, temperature at 40% and time at 30 min.
And 4, drying and shaping.
In this embodiment, the purpose of the cloth drying process is to press water into a wet cloth in a slitting mode.
The shaping process aims at adding cool soft oil for shaping. The setting machine used for setting may be, for example, a letter door Fuji 8-box setting machine. Wherein the parameters of the setting machine are as follows: the temperature is (160-165 ℃) multiplied by 8, the width: 165cm, rolling pressure of 4.0Kg, total excess of 12-16%, machine speed of 23-26 m/min, air quantity of upper 95% and lower 90%, and tail spray humidification rate of 45-60%.
In this embodiment, after the drying and sizing are completed, the pre-shrinking and the cloth inspection are performed for storage.
In this embodiment, the fabric is preshrunk by using a preshrunk machine to control the shrinkage rate of the fabric.
In this embodiment, a cloth inspecting machine is used for inspecting cloth, and an automatic packaging machine is used for packaging and warehousing. Wherein, check and distribute the warehouse and still include: screening the specification and the internal quality of the finished fabric, comprising the following steps: the color fastness to gram weight, breadth, shrinkage, washing distortion factor, pH value, washing color fastness, dry rubbing color fastness, wet rubbing color fastness, perspiration stain color fastness, light perspiration composite color fastness, formaldehyde content, ultraviolet ray resistance, elasticityAnd screening the contact cool feeling coefficient and the air permeability. Specifically, in this embodiment, the specification and the internal quality requirements of the finished fabric are gram weight: 160 +/-5 g/m 2 The width: 165cm, shrinkage: the content of W/L is more than or equal to-5% and less than or equal to +2%, the washing torsion rate is within 4%, the pH value is 4-8.5, and the color fastness to washing is as follows: grade 4 or more, dry rubbing fastness: grade 4 or more, and color fastness to wet rubbing: grade 3 or more (grade 2-3 for dark adults), fastness to perspiration: grade 3-4 or more, light fastness: dark color is more than or equal to grade 4, light color is more than or equal to grade 3, light and sweat resistance composite color fastness is as follows: not less than grade 3-4, formaldehyde content: less than or equal to 75mg/Kg. And the indexes of ultraviolet resistance, elasticity, contact cool feeling coefficient and air permeability are as follows:
| item | Method standard | Standard requirements of |
| Ultraviolet ray resistance | GB/T 18830-2019 | UPF＞50，T(UVA)AV％＜5 |
| Elasticity | FZ/T 70006-2004 | The transverse constant force elongation is more than or equal to 80 percent |
| Coefficient of contact cooling | GB/T 35263-2017 | q-max(j/(cm 2 ·s))≥0.15 |
| Air permeability | GB/T 5453-1997 | Air permeability (mm/s) is more than or equal to 100 |
According to the ultraviolet-proof all-cotton fabric manufacturing process in the embodiment, the proportion of the cotton fibers and the spandex fibers is adjusted, the all-cotton gray cloth combined with the softness and the elasticity is obtained through weaving, then the adaptation and the process research of the ultraviolet absorbent and the dye in the dyeing stage are carried out on the all-cotton gray cloth, the mode of an exhaustion method is innovatively adopted, the ultraviolet absorbent and the reactive dye are used in the same bath in the dyeing stage and are in permanent connection with the cotton fibers, and the ultraviolet-proof all-cotton fabric manufacturing process has excellent dyeing rate and fixation effect. Compared with the traditional ultraviolet-proof chemical fiber fabric, the sun-proof fabric has the advantages of air permeability, sweat absorption, softness, elasticity, cool touch feeling, no stimulation and the like due to the all-cotton material and the elastic structure; meanwhile, the ultraviolet absorbent is tightly combined with the cotton fiber, the tested UPF is more than 50, and the washing fastness is higher.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (10)
1. A manufacturing process of an ultraviolet-proof all-cotton fabric is characterized by comprising the following steps:
the soft and elastic combined all-cotton gray cloth is obtained by weaving by adjusting the proportion of the cotton fiber and the spandex fiber;
sequentially carrying out a cloth loosening process, a blank fixing process and a singeing process on the all-cotton gray cloth to obtain a relatively smooth all-cotton fabric;
performing a vat-dropping dyeing process, and enabling the ultraviolet absorbent and the reactive dye to be used in one bath in the dyeing stage by adopting an exhaustion method through the matching and process of the ultraviolet absorbent and the dye in the dyeing stage and linking with cotton fibers to realize the dye-uptake and fixation;
and drying and shaping.
2. The process for preparing the ultraviolet-proof all-cotton fabric according to claim 1, wherein the doffing dyeing process is carried out by adapting the ultraviolet absorber and the dye in the dyeing stage and using the ultraviolet absorber and the reactive dye in the same bath in the dyeing stage in a way of exhaustion, and linking the ultraviolet absorber and the reactive dye with cotton fibers to realize the dyeing rate and fixation, and comprises the following steps:
using a normal temperature and normal pressure dyeing machine, and taking 80 percent of the weight of the effective load cloth as a calculation standard to ensure that the parameters of the dyeing process machine reach the following values: the bath ratio is less than 1:10, the rice weight is 245g/m-250g/m, the web length: 80m-100m, main pump speed: 45 percent, the lifting motor is more than or equal to 300m/min, anhydrous sodium sulphate is added to fix the ultraviolet absorbent at the temperature of 80 ℃, and then, a complete absorption method is adopted: adding 1-3% of color fixing agent and wet fastness promoter, controlling pH at 6-7, temperature at 40% and time at 30 min.
3. The manufacturing process of the ultraviolet-proof all-cotton fabric as claimed in claim 1, wherein the step of weaving the all-cotton gray cloth with the soft and elastic combination by adjusting the ratio of the cotton fibers to the spandex fibers comprises the following steps:
the yarn is 50S cotton yarn and 20D spandex, wherein the cotton yarn is prepared from 50% of long stapled cotton and 50% of fine stapled cotton, and the spandex is lycra fiber.
4. The process for manufacturing the ultraviolet-proof all-cotton fabric according to claim 3, further comprising the following steps: the fabric is woven by using a knitting single-side circular knitting machine, the machine adjustment is 28G 30', and the knitting single-side circular knitting machine comprises a row of needles and a triangular row, wherein 2 needles are arranged in one cycle of the row of needles, and 1 wool is arranged in one cycle of the triangular row.
5. The manufacturing process of the ultraviolet-proof all-cotton fabric according to claim 1, wherein the cloth loosening process comprises the following steps: and taking out the gray cloth, placing the gray cloth on a cloth loosening machine, pulling the gray cloth and fixing the gray cloth at a corresponding position, and starting to loosen the cloth by turning on an operation switch.
6. The manufacturing process of the ultraviolet-proof all-cotton fabric according to claim 1, wherein the blank fixing process comprises the following steps: and (3) using a blank fixing machine, setting the temperature at 190-200 ℃, realizing blank fixing treatment, fixing the cloth, and avoiding the blank cloth from shrinking to generate creases or dead marks during the cylinder-dropping dyeing process.
7. The manufacturing process of the ultraviolet-proof all-cotton fabric according to claim 1, wherein the singeing process comprises the steps of: singeing the grey cloth by using a singeing machine, controlling the speed at 80-100m/min and the flame temperature at 800-900 ℃ to burn down hairiness on the surface of the grey cloth, so that the fabric is smooth and clean.
8. The manufacturing process of the ultraviolet-proof all-cotton fabric according to claim 1, wherein the step of drying and shaping comprises the following steps:
cutting and pressing water into the wet cloth;
the setting machine is used in the design, wherein the setting machine parameter is: the temperature is (160-165 ℃) multiplied by 8, the width: 165cm, rolling pressure of 4.0Kg, total excess of 12-16%, machine speed of 23-26 m/min, air quantity of upper 95% and lower 90%, and tail spray humidification rate of 45-60%.
9. The manufacturing process of the ultraviolet-proof all-cotton fabric as claimed in claim 1, further comprising:
pre-shrinking, namely pre-shrinking the fabric by using a pre-shrinking machine to control the shrinkage rate of the fabric;
inspecting the cloth and warehousing, inspecting the cloth by using a cloth inspecting machine, and packaging and warehousing by using an automatic packaging machine.
10. The process for making the ultraviolet-proof all-cotton fabric according to claim 9, wherein the step of checking the cloth and warehousing further comprises the following steps: screening the specification and the internal quality of the finished fabric, which comprises the following steps: and (3) screening the grammage, the width, the shrinkage, the washing distortion rate, the pH value, the washing color fastness, the dry friction color fastness, the wet friction color fastness, the perspiration stain color fastness, the light and perspiration composite color fastness, the formaldehyde content, the ultraviolet ray resistance, the elasticity, the contact cool feeling coefficient and the air permeability.
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