CN112281278A - Flame-retardant polyester rolling curtain fabric and preparation method thereof - Google Patents
Flame-retardant polyester rolling curtain fabric and preparation method thereof Download PDFInfo
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- CN112281278A CN112281278A CN202011102917.4A CN202011102917A CN112281278A CN 112281278 A CN112281278 A CN 112281278A CN 202011102917 A CN202011102917 A CN 202011102917A CN 112281278 A CN112281278 A CN 112281278A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/04—Pigments
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
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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
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of 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
- D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
- D06C15/02—Calendering, pressing, ironing, glossing or glazing textile fabrics between co-operating press or calender rolls
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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
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
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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
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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Abstract
The invention discloses a preparation method of a flame-retardant polyester roller shutter fabric, which is prepared by blending high-viscosity copolymerized flame-retardant polyester chips, color master batches and functional materialsThe flame-retardant polyester roller shutter fabric obtained by performing dope colored spinning, grey cloth weaving, high-temperature cleaning in a dye factory and high-temperature setting treatment consists of 100 percent of colored polyester fibers containing flame-retardant functional materials, the flame-retardant polyester roller shutter fabric is uncoated and does not contain a stiffening agent, and the gram weight of the flame-retardant polyester roller shutter fabric is 175-550 g/m2The oxygen index is 33.2-40.5%. The prepared flame-retardant polyester roller shutter fabric can meet the mandatory fire-fighting technical standard GB 8624B 1 level in public places in China, the oxygen index value reaches more than 33 percent, the requirements of no deformation and no folding can be met without coating, stiffening agent and other similar substances, the use function of the roller shutter fabric is met, and the production quality is stable and controllable.
Description
Technical Field
The invention relates to the technical field of flame-retardant materials, in particular to a flame-retardant polyester roller shutter fabric and a preparation method thereof.
Background
Because a large amount of flammable and combustible materials are used in public places, fire disasters occur continuously, crowd death and crowd injuries are caused, and great loss is caused to the safety of lives and properties of people. The twenty-sixth … … indoor decoration and the fire-proof performance of the decorative material are newly added in the 'fire-fighting law' revised and implemented in 2009 in China and must meet the national standard; … … the indoor decoration and decoration of the dense place should use non-combustible and fire-retardant materials according to the requirement of fire-fighting technical standard. "wherein, the fire-fighting technical standard belonging to the grade of the flame-retardant material is the flame-retardant grade 1 of the standard GB20286-2006 flame-retardant product and component combustion performance requirement and identification in public places and the mandatory standard B1 of the standard GB8624-2012 combustion performance grading of building materials and products. The public security department in 2015 1 month 8 days, the emergency management department in 2019 4 months 29 days have issued "notice on prevention of major fire safety risks and enhancement of fire safety management of personnel dense places", and in the notice, "the personnel dense places are strictly prohibited to illegally use flammable and combustible material for decoration". That is, the finishing material of the place where people gather must use the "nonflammable material" of fire protection technical standards GB20286-2006 flame retardant grade 1 and GB8624-2012B1 according to the regulation of "fire protection act" of article 26. In public places such as office buildings (rooms), waiting halls, train high-speed rails and the like in places with dense people in China, a large number of roller shutters with sun-shading functions are used all the time. However, few fire-resistant and fire-retardant rolling curtains are available that meet the fire-retardant material level specified by the laws, regulations and standards of our country. Therefore, the fireproof and flame-retardant rolling curtain has a very large market space, and the demand is increasing day by day.
The existing general technology for producing the flame-retardant roller shutter curtain is to adopt a mode of dyeing polyester fiber cloth and then coating the polyester fiber cloth with materials such as PVC and the like added with a flame retardant, and the production method and the product occupy the leading position in the market. However, the products are poor, and the technicians in China perform a plurality of tests for improving the flame retardance of the products by using the technology, and the aim is to enable the oxygen index (LOI value) to reach more than 32%, but the best oxygen index of the products is only 31% through inspection, and the products actually sold and used in the market basically do not reach 30% of the oxygen index. The obvious defects of the technical scheme are that the product can not meet the requirements of fire safety standard GB8624-2012B1 grade (LOI is more than or equal to 32.0%) fire-retardant materials, and the environment-friendly degree of the coating production process is poor. There is proposed a new coating method, for example, in utility model No. 201820497145.0, a flame retardant layer, an antifouling layer and an antibacterial layer are sequentially coated on a base fabric, and a large amount of combustible organic substances are used to bind with the base fabric while the base fabric is coated with the flame retardant layer, so that the flame retardant property of the added flame retardant is greatly reduced by the combustible organic substances. The roller shutter fabric can not meet the requirements of GB8624-2012B 1-grade (LOI is more than or equal to 32.0%) fire-retardant materials. The other type of the prior art adopts the technical scheme that the copolymerization flame-retardant polyester fiber is woven and dyed, a stiffening agent is added during shaping, and then the redundant stiffening agent is removed through cooking, so that the oxygen index reaches 32 percent, but the success is not achieved. The reason is that due to the characteristics of the copolymerized flame-retardant polyester fiber, the flame-retardant fabric gradually becomes soft, deformed and wrinkled in the using process after dyeing and shaping, the using function of the roller shutter fabric cannot be met, the stiffening agent is added to improve and achieve the stiffening effect, but the improvement obviously reduces the flame retardance and even changes the flame retardance into non-flame-retardant, and even if the redundant stiffening agent is removed by methods such as cooking and the like, only a part of the stiffening agent is remained, and the good flame-retardant effect cannot be obtained. Therefore, the technology has barriers and is not qualified to be marketed.
Therefore, the flame retardant property is required to meet the requirements of GB8624-2012B1 grade (flame-retardant material), and the use function of the flame-retardant roller shutter fabric is required to be free from deformation and wrinkle in the use process, so that the flame retardant roller shutter fabric is an urgent requirement of the current flame-retardant roller shutter fabric.
Disclosure of Invention
The invention aims to provide a flame-retardant polyester roller shutter fabric and a preparation method thereof, which can meet the mandatory fire-fighting technical standard GB 8624B 1 level in public places in China, enable the oxygen index value to reach more than 33 percent, can meet the requirements of no deformation and no wrinkle without a coating, a stiffening agent and other similar substances, meet the use function of the roller shutter fabric, and have stable and controllable production quality.
On one hand, the invention provides a preparation method of a flame-retardant polyester roller shutter fabric, which is characterized in that high-viscosity copolymerized flame-retardant polyester chips, color master batches and functional materials are blended to carry out stock solution coloring spinning, grey cloth weaving and dye factory treatment, and comprises the following steps:
step 1, adding color master batches and functional materials into a copolymerized flame-retardant polyester slice with a phosphorus content of 5500-7100 ppm and a viscosity of 0.72-0.95 dL/g, and performing colored spinning and post-spinning on a stock solution to obtain colored functional flame-retardant terylene DTY (draw textured yarn) network yarns and/or colored functional flame-retardant terylene ATY (oriented textured yarn);
step 2, weaving the colored functional flame-retardant polyester DTY interlaced yarn and/or the colored functional flame-retardant polyester ATY into colored functional flame-retardant polyester gray fabric;
and 3, adding a weak alkaline cleaning agent into the colored functional flame-retardant gray fabric for treatment at the temperature of 100-120 ℃ or adding a desizing agent for desizing, cleaning at the temperature of 80-95 ℃ again, and then shaping on a shaping machine at the temperature of 165-205 ℃ and at the speed of 15-30 m/min to obtain the flame-retardant polyester roller shutter fabric.
The copolymerized flame-retardant polyester chip is adopted as a raw material so as to ensure that the combustion performance of the roller shutter fabric reaches more than 33 percent of oxygen index, and the copolymerized flame-retardant polyester chip is commercially available.
The high-viscosity copolymerized flame-retardant polyester slice is adopted as a raw material, because the molecular weight of the high-viscosity copolymerized flame-retardant polyester is higher than that of the conventional copolymerized flame-retardant polyester, the molecular chain length of the copolymerized flame-retardant polyester is long, the slippage space between molecules is reduced, the flame-retardant polyester DTY network yarn and/or flame-retardant polyester ATY with high breaking strength can be obtained by spinning, the stiffness of the fiber is increased, the fiber is woven into grey cloth by weaving, the grey cloth is subjected to high-temperature treatment by a dye factory to shrink the fiber, and the high-temperature shaping is carried out to fix the fiber and the extensibility and stiffness of the fabric, so that the fabric is not deformed and wrinkled, and the use function of the; when the fabric is not coated, and stiffening agents and similar substances are not added, the combustion performance of the roller shutter fabric is not affected by combustible organic substances and reaches the level of a flame-retardant material, and the material components of the roller shutter fabric are kept to be composed of 100% of colored functional flame-retardant polyester fibers.
If the viscosity of the copolymerized flame-retardant polyester chip is low, such as the viscosity is below 0.7dL/g, the breaking strength of the spun fiber is low and the spun fiber is soft, and the produced fabric cannot be stiff and smooth, is easy to soften and wrinkle, and cannot be used as a roller shutter fabric; however, if the viscosity of the copolymerized flame-retardant polyester chip is more than 1.0dL/g, spinning and network adding of multi-F DTY are difficult, the breaking strength of the spun fiber reaches more than 6.5dL/g, the weaving is difficult, the stiffness of the woven grey cloth after treatment is high, the fabric is difficult to roll or cannot be rolled and compacted, and the copolymerized flame-retardant polyester chip cannot be used as a roller shutter fabric.
The color master batch is added and blended with the copolymerized flame-retardant polyester chip to carry out dope colored spinning, so that the advantages are two, firstly, the light-resistant color fastness of the fabric woven by the color spinning is at least 1 grade or even more than 2 grades higher than that of the dyed fabric, and the high standard requirement of the roller shutter fabric on the light-resistant color fastness can be met; and secondly, the dope dyed spinning does not additionally increase the environmental pollution during spinning, namely, dyeing is not needed in a dye factory, and no dyeing wastewater is discharged, so that the dope dyed spinning is environment-friendly. The addition amount of the color master batch is determined according to the color requirement, and the preferable conditions are not determined.
One or more of the antibacterial master batch, the ultraviolet-resistant master batch and the negative ion master batch are added and blended together in the stock solution coloring spinning, so that the roller shutter fabric has the additional functions of resisting bacteria and mildew, and/or has the additional functions of resisting ultraviolet rays and shielding ultraviolet rays, and/or has the additional function of releasing negative ions while having high flame retardance and high light fastness.
Preferably, in step 1, the "functionality (performance)" of the fiber is formed by one or more functional materials of antibacterial master batch, ultraviolet-resistant master batch and anion master batch, and the addition amounts are respectively 0-4.8 wt%. The antibacterial master batch, the ultraviolet resistant master batch and the negative ion master batch are commercially available.
Preferably, in step 1, the dope-dyed spinning is melt spinning, and the spinning conditions are as follows: and drying the mixture of the copolymerized flame-retardant polyester chip, the color master batch and the functional material until the water content is below 35ppm, the temperature is 263-288 ℃, and the melt pressure is 15.5-19.5 MPa.
Preferably, the colored functional flame-retardant polyester DTY interlaced yarn is 108-512 dtex/36-144 f (or 97-461D/36-144 f), and the breaking strength is 3.6-6.1 cN/dtex; the color functional flame-retardant polyester ATY is 233-694 dtex/72-144 f (or 198-625D/72-144 f), and the breaking strength is 3.6-6.1 cN/dtex.
Preferably, in the step 2, during weaving, the colored functional flame-retardant polyester DTY interlaced yarn is warp yarn and/or weft yarn, and the colored functional flame-retardant polyester ATY is warp yarn and/or weft yarn. That is, the prepared grey cloth can be woven by colored functional flame-retardant polyester DTY network yarns or colored functional flame-retardant polyester ATY, or woven by colored functional flame-retardant polyester DTY network yarns or colored functional flame-retardant polyester ATY.
Preferably, in the step 3, the colored functional flame-retardant gray fabric is treated by adding a weakly alkaline cleaning agent or added with a desizing agent in a high-temperature jig dyeing machine cylinder for desizing for 10-20 minutes, and the secondary cleaning treatment time is 10-15 minutes.
Preferably, the fabric is dried before shaping, and the drying and shaping conditions are as follows: and (3) taking the fabric out of the jig dyeing machine cylinder, drying the fabric by a multi-roller steam dryer, and setting the fabric by a tentering setting machine at the temperature of 165-205 ℃ and at the speed of 10-30 m/min.
Preferably, the shading rate of the fabric which is not subjected to the calendering treatment after the high-temperature setting can reach 95-98%, but if the shading rate of the fabric is 99-100%, the fabric needs to be subjected to the calendering treatment, namely, the fabric is calendered for 1-4 times on a calender under the conditions that the temperature is controlled to be 110-160 ℃, the pressure is 5.5-11 MPa, and the speed is 10-25 m/min. After the fabric is subjected to calendaring treatment, the flatness, the stiffness and the brightness are increased, so that the shading effect of the fabric is further improved.
Preferably, in order to obtain a fabric having openness and light-transmitting properties: for the fabrics with small openness and light transmission, if the shading rate is 90-95%, the degree of the reduction of the warp and weft linear density is small during weaving, and slippage cannot be generated by the self stability of the fibers; however, for the fabric with large openness and high light transmittance, if the shading rate is 80-90%, because the degree of reducing the warp and weft density is large, and the yarns have intermittence and are easy to slide, a non-flame-retardant low-melting-point polyester yarn with the melting point of 120-150 ℃ is synchronously configured with the weft yarn during weaving to weave, and the low-melting-point polyester yarn is melted and bonded with other fibers during high-temperature shaping to fix the fiber position. The shading rate of the fabric with the openness and the light transmission is 80-95%.
Preferably, in the step 1, the colored functional flame-retardant polyester DTY interlaced yarn is obtained by further heating and drafting colored functional flame-retardant polyester POY; the colored functional flame-retardant polyester ATY is obtained by further heating, drafting and air-texturing the colored functional flame-retardant polyester POY in an air texturing machine, or is obtained by further heating and air-texturing the colored functional flame-retardant polyester FDY in the air texturing machine.
On the other hand, the flame-retardant polyester roller shutter fabric is prepared by the preparation method, the flame-retardant polyester roller shutter fabric is made of 100% of colored polyester fibers containing flame-retardant functional materials, the flame-retardant polyester roller shutter fabric is free of a coating and stiffening agents and similar substances, and the gram weight of the flame-retardant polyester roller shutter fabric is 175-550 g/m2The oxygen index is 33.2-40.5%.
The combustion performance grade of the GB8624-2012 standard in China is graded as follows:
class a, non-combustible materials (and articles);
grade B1, flame retardant material (and product), LOI greater than or equal to 32.0%;
b2 grade, combustible material (and product), LOI greater than or equal to 26.0%;
class B3, flammable material (and product), no performance requirements.
The oxygen index (LOI) of the flame-retardant roller shutter fabric provided by the invention is 33.2-40.5% and is higher than 32.0%, so that the flame-retardant roller shutter fabric belongs to a flame-retardant grade product, and the flame-retardant effect is obvious.
Further, in the present invention,
manufacturing colored functional flame-retardant polyester fibers:
the preparation method comprises the steps of adding a certain amount of copolymerized flame-retardant polyester chips with the viscosity of 0.75-0.98 dL/g and the phosphorus content of 5500-7200 ppm according to the required color, adding a certain amount of color master batches according to the required color, adding 0-4.8 wt% of one or more functional materials of antibacterial master batches, ultraviolet-resistant master batches and negative ion master batches according to the antibacterial function, uniformly mixing, drying in a drying tower until the water content is reduced to 35ppm or below, carrying out stock solution colored spinning by using melt spinning equipment, and spinning at the spinning temperature of 265-285 ℃ and the melt pressure of 15.5-19.5 MPa to obtain the colored functional flame-retardant polyester POY. The colored functional flame-retardant polyester POY is further processed on a draw texturing machine to obtain colored functional flame-retardant polyester DTY interlaced yarn; the colored functional flame-retardant polyester POY is further processed on an air texturing machine to obtain the colored functional flame-retardant polyester ATY. Or directly spinning the polyester FDY into the colored functional flame-retardant polyester FDY by using melt spinning equipment, and further processing the polyester FDY on an air texturing machine to obtain the colored functional flame-retardant polyester ATY.
According to the technical scheme, one or more functional materials of the antibacterial master batch, the ultraviolet-resistant master batch and the anion master batch are added, and are relatively complicated to embody in the fiber obtained by spinning one by one, and are uniformly referred to as functionality for short, namely, the phosphorus content of the obtained colored functional flame-retardant polyester DTY network yarn and the obtained colored functional flame-retardant polyester ATY is 5300-7000 ppm (namely 0.53-0.70 wt%).
The colored functional flame-retardant polyester DTY interlaced yarn obtained by the technical scheme is 108-512 dtex (or 97-461D), the colored functional flame-retardant polyester ATY is 220-722 dtex (or 198-650D), and the breaking strength is 3.6-6.1 cN/dtex.
Weaving colored functional flame-retardant polyester gray fabric:
the weaving method 1: according to the square meter grammage and the requirement of style tissue of the fabric, selecting a proper specification in the colored functional flame-retardant polyester DTY, weaving the colored functional flame-retardant polyester grey fabric by plain weave, twill weave, variable plain weave and variable twill weave on a water jet loom or a rapier loom under the condition that the warp and weft directions of the colored functional flame-retardant polyester DTY are the same specification or the weft direction is greater than the warp linear density, or weaving the colored functional flame-retardant polyester grey fabric by jacquard weave on an electronic dobby loom.
The weaving method 2: according to the square meter grammage and the requirement of style tissue of the fabric, selecting a proper specification in the colored functional flame-retardant polyester DTY network yarn and a proper specification in the colored functional flame-retardant polyester ATY, and weaving by plain weave, twill weave, variable plain weave and variable twill weave on a water jet loom or a rapier loom under the condition of proper warp and weft density to obtain colored functional flame-retardant polyester gray fabric, or weaving by jacquard weave on an electronic dobby loom to obtain the colored functional flame-retardant polyester gray fabric.
The weaving method 3: according to the square meter grammage and the requirement of style tissue of the fabric, selecting a proper specification in the colored functional flame-retardant polyester ATY, weaving the warp direction and the weft direction of the colored functional flame-retardant polyester ATY with the same specification or with the weft direction being larger than the linear density of the warp direction under the condition of proper warp and weft density by using plain weave, twill weave, variable plain weave and variable twill weave on a water jet loom or a rapier loom, or weaving the colored functional flame-retardant polyester grey cloth by using jacquard weave on an electronic dobby loom.
The weaving method 4: selecting a proper specification from the colored functional flame-retardant polyester DTY and/or ATY according to the square meter grammage and the style tissue requirements of the fabric, and weaving the fabric with smaller aperture ratio and light transmission by using the same specification in the warp direction and the weft direction or using the linear density of the weft direction which is greater than that in the warp direction, so as to reduce the degree of smaller density of the warp direction and the weft direction, such as the fabric with the shading ratio of 90-95%; the fabric with large aperture ratio and light transmittance can be obtained by reducing the degree of large warp and weft density, and if the fabric is 80-90% of shading rate, a non-flame-retardant low-melting-point polyester yarn with a melting point lower than the setting temperature is arranged to be woven with weft yarns in a synchronous beating-up method.
When weaving, when the breaking strength of the spun fiber with lower slice viscosity is below 5.0cN/dtex and the heavy network degree is better, the warp can be directly woven without sizing; if the spun fiber with higher slice viscosity has breaking strength of more than 5.0cN/dtex and the heavy network degree is worse, the warp yarn needs to be woven after sizing.
When weaving, the warp and weft density is large, so that the requirement of the full shading or nearly full shading roller shutter fabric (sun-shading fabric) can be met, and the warp and weft density is small, so that the requirement of the aperture ratio or semi-shading roller shutter fabric (sun-shading fabric) can be met.
Post-processing the colored functional flame-retardant polyester fabric:
the colored functional flame-retardant polyester grey fabric can be used as a roller shutter fabric only by post-processing, and the method comprises the following steps:
the colored functional flame-retardant polyester gray fabric is treated by adding a proper amount of alkalescent cleaning agent into the unbleached gray fabric in a dye factory and a jig dyeing machine cylinder and then is cleaned by tap water; and adding a proper amount of desizing agent into the sized gray fabric for desizing, then cleaning with a small amount of neutral cleaning agent, carrying out weakly alkaline cleaning treatment or desizing treatment at the temperature of 100-120 ℃ for 10-20 minutes, then discharging the treatment solution, cleaning again at the temperature of 85-95 ℃ for 10-15 minutes, taking out of the cylinder, drying on a multi-roller steam dryer, shaping by using a tentering shaping machine at the temperature of 165-210 ℃ at the speed of 10-30 m/min, inspecting, rolling and packaging the fabric to obtain the flame-retardant polyester roller shutter fabric.
For the full-shading roller shutter fabric, the flame-retardant polyester roller shutter fabric obtained after the weaving by increasing the warp and weft density, the high-temperature treatment in a dye factory and the high-temperature setting can reach 95-98% of shading rate, but in order to enable the fabric to obtain better shading effect and smoothness and brightness of the fabric, if the shading rate is required to reach 99-100%, the fabric formed on the tentering and setting machine is calendered on a calender for 1-4 times under the conditions of temperature of 110-160 ℃, pressure of 5.5-11 MPa and speed of 10-25 m/min, and the flame-retardant polyester roller shutter fabric is obtained after the fabric is inspected, rolled and packaged.
The flame-retardant polyester roller shutter fabric is excellent in flame retardant property through detection, the oxygen index of the flame-retardant polyester roller shutter fabric reaches 33.2-40.5%, the light fastness of the flame-retardant polyester roller shutter fabric reaches more than 5 levels, and the flame-retardant polyester roller shutter fabric has the functions of antibacterial property, ultraviolet resistance, negative ions and the like.
Advantageous effects
1. The high-viscosity copolymerized flame-retardant polyester chips are used as raw materials, high-breaking-strength DTY interlaced yarn and/or ATY can be obtained through spinning, the length of molecular chains and the sliding space between molecules are reduced, so that the stiffness of fibers is increased, the fibers are woven into grey cloth, the grey cloth is subjected to high-temperature cleaning treatment in a dye house to shrink the fibers, and the fibers and the extensibility and stiffness of the fabric are fixed through high-temperature shaping, so that the fabric is not deformed and wrinkled, and the using function of the roller shutter fabric is met.
2. The flame-retardant polyester chip copolymer is adopted to control a certain phosphorus content to produce the roller shutter fabric, and the fabric does not pass through a coating, is not added with stiffening agents and other similar substances, so that the excellent combustion performance of the roller shutter fabric provided by the invention is ensured, and the flame-retardant material grade of GB 8624B 1 grade (LOI is more than or equal to 32%) is reached.
3. One or more of antibacterial, uvioresistant and negative ion master batches are added to carry out dope dyeing spinning simultaneously, so that the roller shutter fabric has the value-added function or additional function effects of antibacterial effect, uvioresistant effect and negative ion effect simultaneously, and the multipurpose use function of the flame-retardant polyester roller shutter fabric is met.
Detailed Description
The present invention will be further described with reference to the structures or terms used herein. The description is given for the sake of example only, to illustrate how the invention may be implemented, and does not constitute any limitation on the invention.
Example 1
The purpose of this embodiment is to make the fibrous raw materials of the fire-retardant polyester roller shutter fabric, namely gray functional fire-retardant polyester DTY interlaced yarn, gray functional fire-retardant polyester ATY.
Taking 500kg of copolymerized flame-retardant polyester chips with the phosphorus content of 7100ppm and the viscosity of 0.74dL/g, which are produced by Sichuan east materials science and technology, as a main raw material, adding 16kg of gray master batches and 21kg of antibacterial master batches which are produced by Suzhou Baoli company and required by color matching, blending and uniformly stirring, drying in a drying tower until the water content is reduced to 30ppm, using a 36-hole spinneret plate on a melt spinning machine, gradually adjusting the spinning temperature to 273-275 ℃, controlling the melt pressure to 15.8MPa and the spinning speed to 2800 m/min in the material releasing process at the beginning of spinning, and winding to form 188dtex/36f gray functional flame-retardant polyester POY with the weight of 422 kg.
After the 188dtex/36f gray functional flame-retardant polyester POY is stored for 8 hours:
(11) taking 122kg of gray functional flame-retardant polyester POY, and adjusting proper temperature, speed, nozzle pressure and other drafting processes on a single POY on a texturing machine to perform drafting deformation and networking to obtain 112 kg/36 f gray functional flame-retardant polyester DTY (draw textured yarn) network yarn;
(12) and taking 155kg of gray functional flame-retardant polyester POY, and performing drafting deformation and networking on double doubled yarns on a draw texturing machine by adjusting suitable drafting processes such as temperature, speed, nozzle pressure and the like to obtain 143kg of 222dtex/72f gray functional flame-retardant polyester DTY interlaced yarn.
(13) Taking 145kg of gray functional flame-retardant polyester POY, merging 2 yarns on an air textured yarn machine, heating and drafting, and carrying out air texturing to obtain 233dtex/72f (210D/72f) gray functional flame-retardant polyester ATY with a slight terry and 131kg of weight.
The obtained gray functional flame-retardant polyester DTY interlaced yarn and ATY are detected, and the breaking strength is as follows: (11)3.7 cN/dtex; (12)3.7 cN/dtex; (13)3.9 cN/dtex.
Example 2
The purpose of this example is to make the fibrous raw materials of the fire-retardant dacron functional roller shutter surface fabric, namely blue functional fire-retardant dacron interlaced set silk.
530kg of copolymerized flame-retardant polyester chips which are custom-produced by Sichuan Dong materials science and technology shares company and have the phosphorus content of 6500ppm and the viscosity of 0.95dL/g is taken as a main raw material, 18kg of blue master batch, 18kg of antibacterial master batch, 16kg of ultraviolet-resistant master batch and 16kg of negative ion master batch which are produced by Suzhou Baoli Di company and required by color matching are added, the mixture is uniformly mixed and stirred, the mixture is dried in a drying tower until the water content is reduced to 28ppm, a 48-hole spinneret plate is used on a melt spinning machine, the spinning temperature is gradually adjusted to 283-285 ℃, the melt pressure is controlled to be about 19.2MPa, the spinning speed is 2700 m/min, and the mixture is wound and molded to obtain 281dtex/48f blue functional flame-retardant polyester POY with the weight of 465 kg.
After the 281dtex/48f blue functional flame-retardant polyester POY is stored for 8 hours:
(21) taking 100kg of blue functional flame-retardant polyester POY, and adjusting proper temperature, speed, nozzle pressure and other drafting processes on a single polyester POY on a texturing machine to perform drafting deformation and networking to obtain 92kg of 167dtex/48f blue functional flame-retardant polyester DTY network yarn;
(22) taking 142kg of blue functional flame-retardant polyester POY, and adjusting the proper temperature, speed, nozzle pressure and other drafting processes on a draw texturing machine to perform drafting deformation and networking on the two doubled yarns to obtain 336dtex/96f blue functional flame-retardant polyester DTY network yarn 131 kg;
(23) 223kg of blue functional flame-retardant polyester POY is taken, three parallel yarns are subjected to drafting deformation and networking on a draw texturing machine by adjusting proper drafting processes such as temperature, speed, nozzle pressure and the like, and 210kg of 500dtex/144f blue functional flame-retardant polyester DTY network yarn is obtained.
The prepared blue functional flame-retardant polyester DTY interlaced yarn has the breaking strength as follows: (21)5.8 cN/dtex; (22)6.1 cN/dtex; (23)6.0 cN/dtex.
Example 3
The purpose of this example is to make the fibrous raw material of the functional roll of curtain surface fabric of fire-retardant dacron, namely light grey functional fire-retardant dacron ATY.
Taking 600kg of copolymerized flame-retardant polyester chips which are custom-produced by Sichuan east materials science and technology, and have the phosphorus content of 5500ppm and the viscosity of 0.86dL/g as main raw materials, adding 21.6kg of gray-green master batches, 21.6kg of antibacterial master batches and 19kg of ultraviolet-resistant master batches which are produced by Suzhou Baoli company and required by color matching, blending and uniformly stirring, drying in a drying tower until the water content is reduced to 18ppm, using a 48-hole spinneret plate on a fully drawn yarn spinning machine, gradually adjusting the spinning temperature to 265-267 ℃ in the material releasing process at the beginning of spinning, controlling the melt pressure to be about 18.3MPa, the spinning speed to be 4200 m/min, and performing winding forming to obtain 166dtex/48f light gray functional flame-retardant polyester FDY with the weight of 522 kg.
Processing 166dtex/48f light gray functional flame-retardant polyester FDY into ATY by an air texturing yarn machine:
(31) taking 100kg light gray functional flame-retardant polyester FDY, combining and heating two yarns, and carrying out air deformation processing to obtain 348dtex/96f light gray functional flame-retardant polyester ATY with a slight looped pile, wherein the weight of the ATY is 90 kg;
(32) taking light gray functional flame-retardant polyester FDY with the weight of 180kg, combining and heating 3 yarns, and carrying out air deformation processing to obtain 522dtex/144f light gray functional flame-retardant polyester ATY with a slight looped pile with the weight of 163 kg;
(33) the light gray functional flame-retardant polyester FDY with the weight of 242kg is taken, 4 yarns are combined and heated, and the slightly looped pile 694dtex/192f light gray functional flame-retardant polyester ATY with the weight of 220kg is obtained through air deformation processing.
The prepared light gray functional flame-retardant polyester ATY is detected, and the breaking strength is as follows: (31)4.6 cN/dtex; (32)4.7 cN/dtex; (33)4.7 cN/dtex.
Example 4
The purpose of this embodiment is to make fire-retardant dacron functional roll up curtain surface fabric.
Weaving colored functional flame-retardant polyester gray fabric: taking 60kg of the 112dtex gray functional flame-retardant polyester DTY interlaced yarn of the embodiment (11) as a warp yarn, wherein the upper warp density is 80 pieces/cm, and the upper width is 176 cm; the 222dtex gray functional flame-retardant polyester DTY network yarn of the embodiment (12) is taken as a weft yarn, a double-warp single-weft plain weave is adopted to increase the weft density on a loom to weave as much as possible by using a heavy water jet loom, the loom is stopped when the number of meters of the grey fabric reaches 60 meters, the weft yarn is replaced by 233dtex gray functional flame-retardant polyester ATY of the embodiment (13), the weft density on the loom is increased as much as possible by using the double-warp single-weft plain weave to continue weaving, and the total number of the colored functional flame-retardant polyester grey fabric is 125 meters (wherein the 222dtex weft yarn is 65 meters, and the 233dtex weft yarn is 60 meters).
Post-processing the colored functional flame-retardant fabric: delivering the colored functional flame-retardant grey cloth to a dye factory, winding the grey cloth on a transverse roller in a high-temperature jig dyeing machine, adding 400kg of tap water into a machine tank, adding a proper amount of alkalescent cleaning agent, stirring uniformly, and heating to 1 DEG CWashing at 20 deg.C for 15 min, cooling to below 70 deg.C, draining water, washing with 350kg of tap water at 90 deg.C for 12 min, draining water, taking out of the cylinder, drying the fabric with multi-roller steam dryer, tentering at 175 deg.C, controlling proper overfeed, shaping at 20 m/min, inspecting, and rolling to obtain final product with width of 150cm and weight of 175g/m254 meters of flame-retardant polyester functional rolling screen fabric (41); obtaining a finished product with the width of 150cm and the gram weight of 183g/m2The flame-retardant polyester functional rolling curtain fabric (42) is 50 meters.
The finished fabric is good in stiffness and smoothness, and the oxygen index is detected as follows: (41) the fabric accounts for 36.8%; (42) the fabric content is 37.2%.
Example 5
The purpose of this embodiment is to make fire-retardant dacron functional roll up curtain surface fabric.
Weaving colored functional flame-retardant gray fabric: taking 80kg of the 167dtex blue functional flame-retardant polyester DTY interlaced yarn of the embodiment (21) as a reverse bobbin, drawing warp and sizing, and feeding warp with density of 66 pieces/cm and width of 225 cm; taking 336dtex blue functional flame-retardant polyester DTY interlaced yarn of the embodiment (22) as weft yarn, using a heavy water jet loom to increase the weft density of the weaving on a loom as much as possible by using a double-warp single-weft plain weave, stopping the loom when the number of the meters of the grey fabric reaches 60 meters, replacing the weft yarn with 500dtex blue functional flame-retardant polyester DTY interlaced yarn of the embodiment (23), and using the double-warp single-weft plain weave to increase the weft density of the loom as much as possible to continue the weaving to obtain 128 meters of colored functional flame-retardant polyester grey fabric (wherein 336dtex blue weft yarn is 65 meters and 500dtex blue weft yarn is 63 meters).
Post-processing the colored functional flame-retardant fabric: delivering the colored functional flame-retardant polyester blank cloth to a dye factory, winding the colored functional flame-retardant polyester blank cloth on a transverse roller in a high-temperature jig dyeing machine, adding about 400kg of tap water into a machine tank, adding a proper amount of desizing agent, heating to 105 ℃, desizing for 20 minutes, cooling to below 70 ℃, draining, injecting 350kg of tap water and a small amount of neutral cleaning agent, cleaning for 15 minutes at 90 ℃, draining, taking out of a cylinder, drying the fabric by a multi-roller steam dryer, putting on a tentering setting machine, controlling proper overfeeding at 180 ℃, setting at the speed of 22 m/min, rolling, passing through a three-roller mirror calender, and processing at the temperature of 115 ℃, the pressure of 10.6MPa and the speed of 16 m/min by a three-roller mirror calenderCalendering the front and back sides of the fabric twice under the piece, inspecting the cloth, and rolling to obtain a finished product with the weight of 240g/m and the weight of 200cm255 meters of flame-retardant polyester functional rolling screen fabric (51); obtaining the finished product with the width of 200cm and 262g/m2The flame-retardant polyester functional rolling screen fabric (52) is 53 m.
The finished fabric is good in stiffness and smoothness, and the oxygen index is detected as follows: (51) the fabric content is 37.7%; (52) the fabric content is 38.5%.
Example 6
The purpose of this embodiment is to make fire-retardant dacron functional roll up curtain surface fabric.
Weaving colored functional flame-retardant polyester gray fabric: taking 70kg of 336dtex blue functional flame-retardant polyester DTY interlaced yarn of the embodiment (22), using a rewinding cylinder as warp yarn, drawing warp and sizing, feeding warp density 52 pieces/cm, and feeding width 176 cm; the 500dtex blue functional flame-retardant polyester DTY interlaced yarn of the embodiment (23) is taken as a weft, a heavy water jet loom is used for weaving on a double-warp double-weft change plain weave to increase the weft density as much as possible, the loom is stopped when the number of the grey cloth meters reaches 60 meters, the weft is replaced by 522dtex light gray functional flame-retardant polyester ATY of the embodiment (32), and the weaving is continued on the weft density machine by increasing the weft density as much as possible by the double-warp double-weft change plain weave to obtain 128 meters of colored functional flame-retardant polyester grey cloth (wherein the 500dtex blue weft is 64 meters, and the 522dtex gray weft is 64 meters).
Post-processing the colored functional flame-retardant fabric: delivering the colored functional flame-retardant polyester blank cloth to a dye factory, winding the colored functional flame-retardant polyester blank cloth on a transverse roller in a high-temperature jig dyeing machine, adding about 400kg of tap water into a machine groove, adding a proper amount of desizing agent, heating to 110 ℃, desizing for 20 minutes, cooling to below 70 ℃, draining, injecting 350kg of tap water and a small amount of neutral cleaning agent, cleaning for 15 minutes at 85 ℃, draining, taking out of a cylinder, drying the fabric by a multi-roller steam dryer, putting on a tentering setting machine, controlling proper overfeeding at 200 ℃, setting at a speed of 25 m/min, rolling, performing three-roller mirror surface calender, calendering the front and back surfaces of the fabric respectively for 1 time at a temperature of 150 ℃, a pressure of 5.8MPa and a speed of 15 m/min, inspecting and rolling to obtain a finished product with a width of 150cm and a weight of 421g/m254 meters of flame-retardant polyester functional rolling curtain fabric (61); obtaining finished product with the width of 150cm and 438g/m2The flame-retardant polyester functional rolling screen fabric (62) is 53 m.
The finished fabric is good in stiffness and smoothness, and the oxygen index is detected as follows: (61) 40.5 percent of fabric; (62) the fabric content is 38.7%.
Example 7
The purpose of this embodiment is to make fire-retardant dacron functional roll up curtain surface fabric.
Weaving colored functional flame-retardant polyester gray fabric: the 694dtex light gray functional flame retardant terylene ATY of the embodiment (33) is taken to weigh 80kg, a rewinding is used as warp yarn, the density of the upper warp is 32 pieces/cm, and the width of the upper warp is 175 cm; the 694dtex light gray functional flame retardant polyester ATY of the embodiment (33) is taken as weft yarn, weaving is carried out by a rapier dobby loom with the weft density of 12+12 picks/cm on a double-warp double-pick small jacquard weave, when the number of the gray fabric meters reaches 60 meters, the loom is stopped, the weft yarn is still the 694dtex light gray functional flame retardant polyester ATY of the embodiment (33), the weave is changed into a double-warp three-pick small jacquard weave, the weft density of 8.5+8.5+8.5 picks/cm on the loom is continuously woven, and 122 meters of colored functional flame retardant polyester gray fabric is obtained (wherein the double-weft 694dtex gray weft yarn is 60 meters, and the three-weft 694dtex gray weft yarn is 62 meters).
Post-processing the colored functional flame-retardant fabric: delivering the colored functional flame-retardant polyester blank cloth to a dye factory, winding the colored functional flame-retardant polyester blank cloth on a transverse roller in a high-temperature jig dyeing machine, adding about 400kg of tap water into a cylinder, adding a proper amount of alkalescent cleaning agent, uniformly stirring, heating to 115 ℃, circularly cleaning for 15 minutes, cooling to below 70 ℃, draining, injecting 350kg of tap water, cleaning for 12 minutes at 90 ℃, draining, discharging from the cylinder, drying the fabric by a multi-roller steam drying machine, tentering by an upper setting machine at 205 ℃, controlling proper overfeeding, setting at the speed of 25 m/min, inspecting and rolling to obtain a finished product with the width of 150cm and the weight of 526g/m2The flame-retardant polyester functional rolling curtain fabric (71) is 50 meters; obtaining a finished product with the width of 150cm and the gram weight of 543g/m2The flame-retardant polyester functional rolling screen fabric (72) is 53 m.
The finished fabric is good in stiffness and smoothness, has certain small openness and light transmittance, and is detected to have an oxygen index: (71) the fabric accounts for 36.2%; (72) the fabric content is 35.8%.
Example 8
The purpose of this embodiment is to make fire-retardant dacron functional roll up curtain surface fabric.
Weaving colored functional flame-retardant polyester gray fabric: taking the 222dtex gray functional flame-retardant polyester DTY of the embodiment (12) with the weight of 70kg, using a rewinding cylinder as a warp yarn, and arranging 60 warps/cm on a machine and 175cm in width of the machine; the 522dtex light gray functional flame-retardant polyester ATY and 83dtex of the embodiment (32) with melting point of 150 ℃ non-flame-retardant polyester yarns are taken as weft yarns, a rapier loom is used for weaving with weft density of 14+14 weft/cm on a double-warp double-weft twill weave, when the number of meters of the grey cloth reaches 60 meters, the rapier loom is stopped, the weft yarns are replaced by 694dtex light gray functional flame-retardant polyester ATY and 83dtex with melting point of 150 ℃ non-flame-retardant polyester yarns of the embodiment (33) for using the weft yarns, and the weft density of 12.5+12.5 weft/cm on the loom is also used for continuous weaving on the double-warp double-weft weave, so that 130 meters of colored functional flame-retardant grey cloth is obtained (wherein 522dtex light grey weft yarns are 65 meters and 694.
Post-processing the colored functional flame-retardant fabric: delivering the colored functional flame-retardant grey cloth to a dye factory, winding the colored functional flame-retardant grey cloth on a transverse roller in a high-temperature jig dyeing machine, adding about 400kg of tap water into a machine groove, adding a proper amount of alkalescent cleaning agent, uniformly stirring, heating to 105 ℃, circularly cleaning for 15 minutes, cooling to below 70 ℃, draining, injecting 350kg of tap water, cleaning for 12 minutes at 90 ℃, draining, discharging, drying the fabric by a multi-roller steam dryer, putting the fabric on a tentering setting machine, controlling proper negative overfeeding at 175 ℃, setting at the speed of 18 m/min to melt low-melting point polyester fibers, bonding the low-melting point polyester fibers with warps and wefts together, inspecting the cloth, and rolling to obtain a finished product with the width of 150cm and the weight of 312g2The flame-retardant polyester functional rolling screen fabric (81) is 53 m; obtaining finished product with the width of 150cm and 331g/m2The flame-retardant polyester functional rolling screen fabric (82) is 53 m.
The finished fabric is good in stiffness and smoothness, has certain large openness and light transmittance, and is detected to have an oxygen index: (81) the fabric content is 34.3%; (82) the fabric content is 33.9%.
Example 9
The purpose of this embodiment is to make fire-retardant dacron functional roll up curtain surface fabric.
Weaving colored functional flame-retardant polyester gray fabric: 60kg of 348dtex light gray functional flame-retardant polyester ATY yarn in the embodiment (31) is taken, a rewinding is used as warp yarn, the warp density of a machine is 48 pieces/cm, and the width of the machine is 175 cm; the 522dtex light gray functional flame-retardant polyester ATY and 111dtex non-flame-retardant polyester yarn with the melting point of 150 ℃ in the embodiment (32) are taken as weft yarns, a rapier loom is used for weaving with the weft density of 13+13 picks/cm on a double-warp double-weft twill weave, the loom is stopped after the number of the grey cloth reaches 60 meters, the weft yarns are replaced by 694dtex light gray functional flame-retardant polyester ATY and 111dtex non-flame-retardant polyester yarn with the melting point of 150 ℃ in the embodiment (33) are taken as weft yarns, the loom is also used for continuous weaving with the weft density of 12+12 picks/cm on the double-warp double-weft weave, and 125 meters of the colored functional flame-retardant polyester grey.
Post-processing the colored functional flame-retardant fabric: delivering the colored functional flame-retardant grey cloth to a dye factory, winding the colored functional flame-retardant grey cloth on a transverse roller in a high-temperature jig dyeing machine, adding about 400kg of tap water into a machine groove, adding a proper amount of alkalescent cleaning agent, uniformly stirring, heating to 108 ℃, cleaning for 15 minutes, discharging water after cooling to below 70 ℃, then injecting 350kg of tap water, cleaning for 15 minutes at 90 ℃, discharging water, discharging from a cylinder, drying the fabric by a multi-roller steam dryer, putting the fabric on a tentering setting machine, controlling proper negative overfeeding at 165 ℃, setting at the speed of 20 m/min, then inspecting the cloth, and rolling to obtain a finished product with the width of 150cm and the gram weight of 345g/m2The flame-retardant polyester functional rolling curtain fabric (91) is 51 meters; obtaining finished product with the width of 150cm and 368g/m2The flame-retardant polyester functional rolling screen fabric (92) is 52 meters.
The finished fabric is good in stiffness and smoothness, has certain large openness and light transmittance, and is detected to have an oxygen index: (91) 33.2 percent of fabric; (92) the fabric content is 33.8%.
Comparative example 1
Weaving, dyeing and shaping by adopting the flame-retardant polyester fiber raw material to obtain the flame-retardant air duct fabric. However, even if the setting temperature is increased to be stiff during setting, the cloth gradually becomes soft along with the passage of time, becomes wrinkled in the winding process, and cannot meet the requirements of the roller shutter fabric. Referring to the method of producing woven fabric by using flame-retardant raw materials and adding a stiffening agent after dyeing in the prior art, the test is as follows:
the method comprises the following steps: the grey cloth woven by the flame-retardant polyester fiber raw material fiber is dyed into grey in a dye factory, and is dehydrated, opened and dried by a multi-roller steam dryer to obtain dry fabric.
The flame retardance of the fabric is simply tested: the lighter is used for ignition for many times in the vertical direction, the fabric is not combusted, after the flame of the lighter leaves, no flame appears at the ignition damaged part of the fabric surface, and only little white smoke exists.
The flame retardant property of the fabric is excellent.
Step two: the method for stiffening the fabric with excellent flame retardant property comprises the following steps:
and (3) the dried fabric passes through a water tank containing a stiffening agent before entering a setting machine, the excess liquid carrying amount is removed through extrusion of a compression roller, and the fabric is set at the temperature of 200 ℃ of the setting machine to obtain the treated stiffened flame-retardant polyester fabric, wherein the stiffening degree of the fabric is suitable for being used as a roller shutter fabric.
Simple test of flame retardancy: the flame of the lighter is used for igniting the fabric in the vertical direction, the flame of the lighter can be quickly burnt after contacting the fabric, the flame can be continuously extinguished, and the black smoke is large and dense. The treated stiff flame-retardant polyester fabric has poor flame retardance and basically has no flame retardance.
Step three: after 50-60% of the stiffening agent of the treated stiffened flame-retardant polyester surface is removed by steam fumigation, the stiffening degree is reduced, and the treated stiffened flame-retardant polyester surface can still be used as a roller shutter fabric.
And then carrying out a flame retardance test: the flame of the lighter is used for igniting the fabric in the vertical direction, the flame is still burnt after contacting the fabric, the burning flame is smaller than that of the prior lighter but is also continuously not extinguished all the time, and the black smoke is also larger. The treated stiffened flame-retardant polyester fabric still has poor flame retardance even after most of stiffening agents are removed, and cannot meet the flame-retardant grade index requirement of GB8624-2012B 1.
Comparative example 2
Spinning: the copolymerization flame-retardant polyester with the viscosity of 1.15dL/g is used for colored spinning to obtain 167dtex/48f colored flame-retardant polyester DTY interlaced yarn, and the yarn has high stiffness and poor interlacing effect. The yarn was tested to have a breaking strength of 7.2 cN/dtex.
Weaving: the yarn has high stiffness and poor network points, so that the difficulties of the procedures of drawing warp, weaving and the like in the weaving process are increased. The woven colored flame-retardant gray fabric becomes very stiff.
Cleaning treatment: when the colored flame-retardant gray fabric is washed in a dye factory, the fabric on the reel of the jig dyeing vat cannot be normally and tightly rolled due to the high stiffness of the fabric surface, and the washing operation is difficult, but the colored flame-retardant gray fabric is still washed according to the method in the embodiment 4, taken out of the vat, adjusted and determined on a tentering and setting machine at proper temperature and speed, and then set, so that the stiffness of the obtained fabric is high, and the fabric cannot be tightly and tightly rolled when being rolled.
And (3) effect comparison: the flame retardance of the fabric is not different from that of the fabric in example 4, and the light fastness reaches more than 5 grades. However, the cloth surface is too stiff to be normally used as the rolling curtain fabric.
Comparative example 3
Spinning: using a copolymerized flame-retardant polyester chip with the viscosity of 0.86dL/g and the phosphorus content of 6500ppm to carry out spinning without adding color master batches to obtain 167dtex/48f flame-retardant polyester DTY interlaced yarn, wherein the breaking strength is 4.8cN/dtex,
weaving: the 167dtex/48f flame-retardant terylene DTY interlaced yarn is weaved in a rapier loom by double-warp and double-weft plain weave to obtain the flame-retardant terylene cloth by increasing the warp and weft density as much as possible.
And (3) post-treatment: according to the method of the embodiment 4, the flame-retardant polyester fabric with better stiffness is obtained by dyeing the grey fabric into grey in a winding dyeing machine of a dyeing mill, cleaning, post-treating and sizing.
And (3) effect comparison: 1) the flame-retardant polyester fabric has good stiffness and is suitable for being used as a roller shutter fabric;
2) and testing the light fastness of the fabric, wherein the result is grade 3 and is close to grade 4. The method produces a light fastness which is significantly reduced compared to example 4.
Comparative example 4
Selecting 3 flame-retardant coating roller shutter fabrics obtained from users and markets, wherein the flame-retardant test data are as follows:
1) the gram weight is 320g/m2The flame-retardant coating roller shutter has the oxygen index: 28.9 percent.
2) The gram weight is 295g/m2The flame-retardant coating roller shutter has the oxygen index: 29.8 percent.
3) The gram weight is 383g/m2The flame-retardant coating roller shutter has the oxygen index: 25.5 percent.
According to the colored functional flame-retardant polyester fiber and flame-retardant polyester roller shutter fabric obtained in the embodiment, the effect data are as follows:
Claims (10)
1. a preparation method of flame-retardant polyester roller shutter fabric is characterized in that high-viscosity copolymerized flame-retardant polyester chips and color master batches are blended to carry out dope colored spinning, grey cloth weaving and dye factory treatment, and the preparation method comprises the following steps:
step 1, adopting a copolymerized flame-retardant polyester slice with a phosphorus content of 5500-7100 ppm and a viscosity of 0.72-0.95 dL/g, adding color master batches and functional materials, and performing dope colored spinning and post-spinning to obtain colored functional flame-retardant terylene DTY (draw textured yarn) interlaced yarn or colored functional flame-retardant terylene ATY (oriented yarn);
step 2, weaving the colored functional flame-retardant polyester DTY interlaced yarn and/or the colored functional flame-retardant polyester ATY into colored functional flame-retardant gray fabric;
and 3, adding a weak alkaline cleaning agent into the colored functional flame-retardant gray fabric for treatment at the temperature of 100-120 ℃ or adding a desizing agent for desizing, cleaning at the temperature of 80-95 ℃ again, and then shaping on a shaping machine at the temperature of 165-205 ℃ and at the speed of 15-30 m/min to obtain the flame-retardant polyester roller shutter fabric.
2. The preparation method of the flame-retardant polyester roller shutter fabric according to claim 1, wherein in the step 1, the functionality is formed by one or more functional materials of antibacterial master batches, ultraviolet-resistant master batches and negative ion master batches added during dope dyeing spinning, and the addition amount of the functional materials is 0-4.8 wt% respectively.
3. The preparation method of the flame-retardant polyester roller shutter fabric according to claim 1, wherein in the step 1, the dope dyed spinning is melt spinning, and the spinning conditions are as follows: drying the mixture of the high-viscosity copolymerized flame-retardant polyester chip, the color master batch and the functional material until the water content is below 35ppm, the temperature is 263-288 ℃, and the melt pressure is 15.5-19.5 MPa.
4. The preparation method of the flame-retardant polyester roller shutter fabric according to claim 1, wherein in the step 1, the colored functional flame-retardant polyester DTY interlaced yarn is 108 to 512dtex/36 to 144f, the breaking strength is 3.6 to 6.1cN/dtex, the colored functional flame-retardant polyester ATY is 220 to 722dtex/72 to 192f, and the breaking strength is 3.6 to 6.1 cN/dtex.
5. The method for preparing the flame-retardant polyester roller shutter fabric according to claim 1, wherein in the step 2, the colored functional flame-retardant polyester DTY interlaced yarn is warp yarn and/or weft yarn, and the colored functional flame-retardant polyester ATY is warp yarn and/or weft yarn.
6. The preparation method of the flame-retardant polyester roller shutter fabric according to claim 1, wherein in the step 3, the colored functional flame-retardant gray fabric is treated by adding a weak alkaline cleaning agent or desizing agent into a high-temperature jig dyeing machine cylinder for desizing for 10-20 minutes, and the secondary cleaning time is 10-15 minutes.
7. The preparation method of the flame-retardant polyester roller shutter fabric according to claim 1, wherein in the step 3, in order to meet the operation of the fabric with 99-100% of shading rate or high brightness: and (3) after high-temperature setting, calendering for 1-4 times by a calender under the conditions of the temperature of 110-160 ℃, the pressure of 5.5-11 MPa and the speed of 10-25 m/min.
8. The preparation method of the flame-retardant polyester roller shutter fabric according to claim 1 or 5, wherein the operation for obtaining the fabric with the light shading rate of 80-90% is as follows: and (3) synchronously configuring a non-flame-retardant polyester yarn with 55-111 dtex and a melting point of 120-150 ℃ with the weft yarn during weaving of the grey fabric in the step 2, and melting the low-melting-point polyester yarn and bonding other fibers together during shaping in the step 3.
9. The method for preparing the flame-retardant polyester roller shutter fabric according to claim 1, wherein in the step 1, the colored functional flame-retardant polyester DTY is obtained by further heating and drafting the colored functional flame-retardant polyester POY obtained by dope colored spinning, and the colored functional flame-retardant polyester ATY is obtained by further heating, drafting and air texturing the colored functional flame-retardant polyester POY obtained by dope colored spinning on an air texturing machine, or the colored functional flame-retardant polyester FDY obtained by dope colored spinning is further heated and air texturing on the air texturing machine.
10. The flame-retardant polyester roller shutter fabric is characterized by being prepared by the preparation method of any one of claims 1 to 9, the flame-retardant polyester roller shutter fabric is made of 100% colored polyester fibers containing flame-retardant functional materials, the flame-retardant polyester roller shutter fabric is free of coating and stiffening agents, and the gram weight of the flame-retardant polyester roller shutter fabric is 175-550 g/m2The oxygen index is 33.2-40.5%.
Priority Applications (1)
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