Textile fabric with fireproof performance and preparation process thereof

Abstract

The invention discloses a textile fabric with fireproof performance, which comprises an upper layer fabric, a middle layer fabric and a lower layer fabric, bonding layers are bonded between the upper layer fabric and the middle layer fabric and between the middle layer fabric and the lower layer fabric, and the upper layer fabric, the middle layer fabric and the lower layer fabric are formed by interweaving transverse warps and vertical wefts. According to the invention, the upper layer fabric, the middle layer fabric, the lower layer fabric and the bonding layer are matched, and the upper layer fabric formed by blending the metal wires, the linen fibers and the flame-retardant fibers can play a good wear-resistant role and a certain flame-retardant role in use; meanwhile, static electricity can be conducted out in time through the conductive wires contained in the middle-layer fabric, the multiple layers are connected together through the bonding layer with the flame retardant, and therefore the flame-retardant and fireproof performance of the fabric is further improved, and through padding treatment of the waterproof agent, the whole fabric is resistant to abrasion, not prone to pilling and good in antistatic, waterproof and fireproof performance.

Description

Technical Field

[0001] The present invention relates to the technical field related to textile fabrics, and in particular to a textile fabric with fireproof performance and a preparation process thereof. Background Art

[0002] Fabric is the material used to make clothing. As one of the three elements of clothing, fabric can not only interpret the style and characteristics of clothing, but also directly affect the color and shape of clothing. Fabric is an important material in people's daily life. Existing fabrics are mainly made of synthetic fibers. This kind of synthetic polymer material can produce a lot of toxic and corrosive smoke during thermal decomposition and combustion, which can easily cause secondary damage in fires.

[0003] Because textile fabrics are mostly made of cotton thread and chemical fiber, this kind of fabric does not have good fire retardant and waterproof effects, and is relatively easy to burn. Therefore, before being made into finished clothes, they need to be placed in a dry and ventilated warehouse. They must not be exposed to sparks, and the warehouse must be ventilated in time to prevent the fabric from being damaged by moisture. Although there are flame retardant, arc proof and waterproof fabrics on the market, the functions of these fabrics are single. The processed products only have separate flame retardant, arc proof or fire proof functions, with single functions, poor effects, and poor comfort of the fabrics. Summary of the invention

[0004] The purpose of the present invention is to provide a textile fabric with fire retardant performance and a preparation process thereof, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a textile fabric with fire-retardant performance, comprising an upper fabric, a middle fabric and a lower fabric, wherein an adhesive layer is bonded between the upper fabric and the middle fabric, and between the middle fabric and the lower fabric, and the upper fabric, the middle fabric and the lower fabric are interwoven with each other in a horizontal warp and vertical weft manner.

[0006] Preferably, the upper fabric is made of a blend of metal wire, flax fiber and flame-retardant fiber, and the mass ratio of the metal wire, flax fiber and flame-retardant fiber is 3:4:2.

[0007] Preferably, the middle layer fabric is used as the antistatic layer, and the conductive yarn is twisted together with polyester-cotton yarn to obtain the conductive yarn, and the conductive yarn is intermittently woven into the weaving process to obtain the antistatic layer, and the mass ratio of the conductive yarn to the polyester-cotton yarn is 1:3.

[0008] Preferably, the lower fabric is made by blending acrylic fiber and wool fiber as raw materials, and the mass ratio of acrylic fiber to wool fiber is 1:60.

[0009] Preferably, the yarn count of the upper fabric is 45S-50S, and the density is 280-290 yarns / 10cm; the yarn count of the middle fabric is 45S-55S, and the density is 270-280 yarns / 10cm; the yarn count of the lower fabric is 55S-70S, and the density is 300-315 yarns / 10cm.

[0010] Preferably, the components and weight proportions of the adhesive layer are 30-35 parts of rosin resin, 15-20 parts of butyl acrylate, 15-20 parts of polymaleic vinyl acid, 55-60 parts of polyurethane and 1-3 parts of magnesium hydroxide flame retardant.

[0011] The present invention also provides a preparation process of a textile fabric with fire retardant performance, comprising the following specific steps:

[0012] Step 1: prepare the upper fabric, mix the metal wire, flax fiber and flame retardant fiber in a mass ratio of 3:4:2, obtain the yarn by drawing, roving and spun yarn winding, and use plain weave on a rapier loom, with a machine width of 180m, a warp density of 260 strands / 10cm, and a weft density of 240 strands / 10cm;

[0013] Step 2: prepare the lower fabric, firstly alternately arrange the weft yarns of a blend of wool fiber and acrylic fiber and a blend of polyester filament and acrylic fiber, the feeding length of each yarn is: 290-335mm / 100N for wool fiber and 110-120mm / 100N for acrylic fiber, and then use single-sided weaving method to weave all loops into a flat structure;

[0014] Step 3: preparing the middle layer fabric, selecting polyester-cotton yarn as the raw material for weaving the antistatic layer, twisting the conductive yarn with the polyester-cotton yarn to obtain the conductive yarn, and intermittently weaving black carbon fiber conductive filaments during the weaving process to obtain the middle layer fabric;

[0015] Step 4: Coat an adhesive layer on the upper surface of the lower fabric, and use a pressing machine to melt-bond the middle fabric to the upper surface of the lower fabric, respectively, at a melting bonding temperature of 120-130°C, a pressure of 120-135 Pa, and a time of 8-12 seconds;

[0016] Step 5: Coat the adhesive layer on the upper surface of the middle fabric, and then use a pressing machine to melt-bond the middle fabric and the upper fabric. The melting bonding temperature is 130-140°C, the pressure is 120-135Pa, and the time is 8-12s;

[0017] Step 6: The fabric prepared in step 5 is immersed in a waterproofing agent at a pressure of 2-2.5 kg / cm 2 , liquid carrying rate 75~78%:

[0018] Step 7: Dry the cloth, bake the cloth at 120-135℃ for 4-5min:

[0019] Step 8: Heat setting of the fabric: use a baking setting machine to keep the dried fabric at a constant temperature between 120 and 130°C for 45 to 60 minutes.

[0020] Technical effects and advantages of the present invention:

[0021] The present invention utilizes an upper fabric layer, a middle fabric layer, a lower fabric layer and an adhesive layer in a coordinated arrangement. The upper fabric layer made by blending metal wire, flax fiber and flame-retardant fiber can not only play a good wear-resistant role but also have a certain flame-retardant role when in use. At the same time, the conductive wire contained in the middle fabric layer can conduct static electricity in time, so that the fabric has an anti-static effect. At the same time, the adhesive layer with a flame retardant is used to connect the multiple layers together, thereby further improving the flame retardant and fireproof performance of the fabric. After the waterproof agent impregnation treatment, the entire fabric is wear-resistant and not easy to pilling, and has good anti-static, waterproof and fireproof properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the overall front internal structure of the present invention.

[0024] In the figure: 1, upper fabric; 2, middle fabric; 3, adhesive layer; 4, lower fabric. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The present invention provides Figure 1-2 A fire-resistant textile fabric shown in the figure comprises an upper fabric 1, a middle fabric 2 and a lower fabric 4, an adhesive layer 3 is bonded between the upper fabric 1 and the middle fabric 2 and between the middle fabric 2 and the lower fabric 4, and the upper fabric 1, the middle fabric 2 and the lower fabric 4 are interwoven with each other in a horizontal warp and vertical weft manner.

[0027] Furthermore, the upper fabric 1 is made of a blend of metal wire, flax fiber and flame retardant fiber, and the mass ratio of the metal wire, flax fiber and flame retardant fiber is 3:4:2. The metal wire can enhance the wear resistance of the upper fabric 1. At the same time, the flax fiber has good hygroscopicity, which can help the human body quickly absorb and dissipate excess heat, providing a comfortable wearing experience, especially in a hot environment. The flax fiber contains natural antibacterial ingredients, such as linolenic acid, which can effectively inhibit bacterial growth and thus have a certain antibacterial effect. The flax fiber has good anti-fouling and anti-static properties, which helps to maintain the cleanliness of clothes and reduce the discomfort caused by static electricity; the flame retardant fiber will not melt when exposed to fire, produces low smoke and does not release toxic gases, and washing and friction will not affect the flame retardant properties.

[0028] Furthermore, the middle layer fabric 2 serves as an antistatic layer, and is made of conductive yarn twisted together with polyester-cotton yarn. The conductive yarn is intermittently woven into the weaving process to obtain an antistatic layer. The mass ratio of the conductive yarn to the polyester-cotton yarn is 1:3. The conductive yarn can enhance the conductive properties of the overall fabric, and can quickly and evenly eliminate the static electricity generated by the human body and clothing, as well as the static electricity generated on the surface of clothing when in contact with the outside world. It is permanent and resistant to washing, and can eliminate the harm of static electricity to the human body, and eliminate the static electricity generated when the human body moves or puts on and takes off.

[0029] Furthermore, the lower fabric 4 is made of a blend of acrylic and wool fibers as raw materials, and the mass ratio of acrylic to wool fibers is 1:60. Wool has good thermal insulation properties because it contains an air layer inside. Especially in cold environments, wool fabrics can help maintain body temperature and provide a comfortable wearing experience. Wool fibers are soft and comfortable to the touch, and are more natural than synthetic fibers. They do not feel stiff, giving users a pleasant experience. Wool has a strong moisture absorption capacity and can absorb a large amount of moisture in a humid environment. It can absorb more than 29% of its own weight in moisture in a saturated state, which helps regulate body temperature. Wool fibers have a high elastic recovery rate and can maintain their original shape even when stretched to a certain extent. Even after being worn and used for a long time, wool fabric can still maintain its original shape. Acrylic fabric has similar properties to wool, and its elasticity even exceeds that of wool. It has a good rebound rate under large-scale pulling, and acrylic fiber is fluffy, feels soft to the touch, and has good warmth retention. Acrylic fabric has good corrosion resistance to acids, alkalis, oxidants and other chemicals, making the fabric more durable. Acrylic fabric has a high melting point and good high temperature resistance, which makes it very safe to use in high temperature environments. Acrylic is easy to dye, with bright and long-lasting colors, which can make the fabric more beautiful. Acrylic is not easily eaten by insects and is easy to use.

[0030] Furthermore, the yarn count of the upper fabric 1 is 45S~50S, and the density is 280 strands / 10cm~290 strands / 10cm, the yarn count of the middle fabric 2 is 45S~55S, and the density is 270 strands / 10cm~280 strands / 10cm, and the yarn count of the lower fabric 4 is 55S~70S, and the density is 300 strands / 10cm~315 strands / 10cm.

[0031] Specifically, the components and weight portions of the adhesive layer 3 are 30-35 parts of rosin resin, 15-20 parts of butyl acrylate, 15-20 parts of polyvinyl maleate, 55-60 parts of polyurethane and 1-3 parts of magnesium hydroxide flame retardant. 30-35 parts of rosin resin, 15-20 parts of butyl acrylate, 15-20 parts of polyvinyl maleate and 55-60 parts of polyurethane are sent into a mixer in a certain proportion for stirring and mixing to ensure that the raw materials are fully and evenly mixed together. The stirring time and speed need to be determined according to the specific formula and production requirements to ensure that the viscosity and viscosity of the hot melt adhesive meet the requirements. The mixed materials are placed in a melting device to melt the mixed raw materials, which can be achieved by heating. Commonly used melting equipment includes melting pots, melting tanks, etc. The melting temperature is determined according to the characteristics of the raw materials and product requirements, usually between 100-200°C, and the melted raw materials need to be filtered. Use a filter to filter out impurities and foreign matter to ensure the quality of the hot melt adhesive. The accuracy and service life of the filter need to be selected according to the production scale and product requirements, so that hot melt adhesive can be made. Hot melt adhesive is the most commonly used type of adhesive in textiles, especially clothing processing, and is widely used in the bonding of non-woven fabrics, carpet seams, clothing linings, zippers, etc. Hot melt adhesive used in the textile industry must have good bonding strength, excellent softness, and water resistance. In the process of making hot melt adhesive, magnesium hydroxide flame retardant is added, so that the hot melt adhesive can also have a certain flame retardant effect.

[0032] Preparation process of the present invention:

[0033] The upper fabric 1 is prepared by mixing metal wire, flax fiber and flame retardant fiber in a mass ratio of 3:4:2, and obtaining the grey yarn by drawing, roving and spun yarn winding, and plain weaving is adopted on a rapier loom, with a machine width of 180 m, a warp density of 260 yarns / 10 cm, and a weft density of 240 yarns / 10 cm;

[0034] To prepare the lower fabric 4, firstly, alternately arrange the weft yarns of a blend of wool fiber and acrylic fiber and a blend of polyester filament and acrylic fiber, and feed the yarns of each yarn in a length of 290-335 mm / 100 N for wool fiber and 110-120 mm / 100 N for acrylic fiber, and then use a single-sided weaving method to weave all loops into a planar structure;

[0035] A middle layer fabric 2 is prepared, polyester-cotton yarn is selected as the raw material for weaving the antistatic layer, conductive yarn is twisted with polyester-cotton yarn to obtain conductive yarn, and black carbon fiber conductive filaments are intermittently woven into the yarn during the weaving process to obtain the middle layer fabric 2;

[0036] Coat the adhesive layer 3 on the upper surface of the lower fabric 4, and use a pressing machine to melt-bond the middle fabric 2 and the upper surface of the lower fabric 4 respectively, with the melting bonding temperature of 120-130°C, the pressure of 120-135Pa, and the time of 8-12s;

[0037] Coating an adhesive layer 3 on the upper surface of the middle fabric 2, and then using a pressing machine to melt-bond the middle fabric 2 and the upper fabric 1, the melting bonding temperature is 130-140°C, the pressure is 120-135Pa, and the time is 8-12s;

[0038] The fabric after bonding is dipped in the impregnation liquid containing waterproof agent, with a pressure of 2-2.5kg / cm2 and a liquid rate of 75-78%:

[0039] Dry the cloth, bake the cloth at 120-135℃ for 4-5min:

[0040] The fabric is heat-set by using a baking setting machine to keep the dried fabric at a constant temperature between 120 and 130 degrees Celsius for 45 to 60 minutes.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A textile fabric with fire retardant properties, characterized in that: The invention comprises an upper fabric (1), a middle fabric (2) and a lower fabric (4), wherein an adhesive layer (3) is bonded between the upper fabric (1) and the middle fabric (2) as well as between the middle fabric (2) and the lower fabric (4), and the upper fabric (1), the middle fabric (2) and the lower fabric (4) are interwoven in a horizontal warp and vertical weft manner.

2. The fire-resistant textile fabric according to claim 1, characterized in that: The upper fabric (1) is made of a blend of metal wire, flax fiber and flame-retardant fiber, and the mass ratio of the metal wire, flax fiber and flame-retardant fiber is 3:4:

2.

3. The fire-resistant textile fabric according to claim 1, characterized in that: The middle layer fabric (2) is used as an antistatic layer. The conductive yarn is twisted together with a polyester-cotton yarn to obtain a conductive yarn. The conductive yarn is intermittently woven into the weaving process to obtain the antistatic layer. The mass ratio of the conductive yarn to the polyester-cotton yarn is 1:

3.

4. The fire-resistant textile fabric according to claim 1, characterized in that: The lower fabric (4) is made by blending acrylic fiber and wool fiber as raw materials, and the mass ratio of the acrylic fiber to the wool fiber is 1:

60.

5. The fire-resistant textile fabric according to claim 1, characterized in that: The yarn count of the upper fabric (1) is 45S-50S, and the density is 280-290 yarns / 10cm; the yarn count of the middle fabric (2) is 45S-55S, and the density is 270-280 yarns / 10cm; the yarn count of the lower fabric (4) is 55S-70S, and the density is 300-315 yarns / 10cm.

6. The fire-resistant textile fabric according to claim 1, characterized in that: The components and weight proportions of the adhesive layer (3) are 30-35 parts of rosin resin, 15-20 parts of butyl acrylate, 15-20 parts of polymaleic vinyl acid, 55-60 parts of polyurethane and 1-3 parts of magnesium hydroxide flame retardant.

7. A process for preparing a textile fabric with fire retardant properties according to any one of claims 1 to 6, characterized in that: The specific usage steps are as follows: Step 1: preparing an upper fabric (1), mixing metal wire, flax fiber and flame retardant fiber in a mass ratio of 3:4:2, obtaining a yarn by drawing, roving and spun winding, and weaving the yarn on a rapier loom in a plain weave manner, with a machine width of 180 m, a warp density of 260 yarns / 10 cm, and a weft density of 240 yarns / 10 cm; Step 2: preparing the lower fabric (4), firstly, alternately arranging the weft yarns of a blend of wool fiber and acrylic fiber and a blend of polyester filament and acrylic fiber, the feeding length of each yarn is: 290-335 mm / 100N for wool fiber and 110-120 mm / 100N for acrylic fiber, and then using a single-sided weaving method, all loops are woven into a flat structure; Step 3: preparing a middle layer fabric (2), selecting polyester-cotton yarn as the raw material for weaving the antistatic layer, twisting the conductive yarn with the polyester-cotton yarn to obtain conductive yarn, and intermittently weaving black carbon fiber conductive filaments during the weaving process to obtain the middle layer fabric (2); Step 4: coating the adhesive layer (3) on the upper surface of the lower fabric (4), and using a pressing machine to melt-bond the middle fabric (2) and the upper surface of the lower fabric (4) respectively, at a melting bonding temperature of 120-130° C., a pressure of 120-135 Pa, and a time of 8-12 seconds; Step 5: coating an adhesive layer (3) on the upper surface of the middle fabric (2), and then using a pressing machine to melt-bond the middle fabric (2) and the upper fabric (1), wherein the melting bonding temperature is 130-140°C, the pressure is 120-135 Pa, and the time is 8-12 seconds; Step 6: The fabric prepared in step 5 is immersed in a waterproofing agent at a pressure of 2-2.5 kg / cm 2 , liquid carrying rate 75~78%: Step 7: Dry the cloth, bake the cloth at 120-135℃ for 4-5min: Step 8: Heat setting of the fabric: use a baking setting machine to keep the dried fabric at a constant temperature between 120 and 130°C for 45 to 60 minutes.

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