Method for manufacturing a nylon polyethylene interwoven double-coated fabric and product

Abstract

The application provides a manufacturing method and product of a nylon-polyethylene interwoven double-sided coating fabric, comprising the following steps: 1) spinning yarn; 2) fabric weaving; 3) cold piling in flat state; 4) acid dyeing; 5) tentering and setting; 6) fabric waterproof finishing; 7) calender finishing; 8) PU coating finishing on the front side of the fabric; and 9) silicone coating finishing on the back side of the fabric. The nylon-polyethylene interwoven fabric has the characteristics of light weight, flame resistance, durable waterproofness, high tear resistance, ultraviolet resistance, smoothness and comfort, etc. through the interwoven fabric structure with good strength, pre-dyeing and finishing treatment, one-side PU waterproof, flame-resistant and ultraviolet-resistant finishing and one-side silicone coating technology. In addition, the acid dyeing produces a double-color interwoven effect that the nylon is colored but the polyethylene is not colored; the application expands the development space and has good environmental protection characteristics, safe production operation, and the final product is non-toxic, non-side effect and has good functional durability.

Description

Technical Field

[0001] This invention belongs to the field of textile technology and relates to a UV-resistant, waterproof, water-pressure resistant, and flame-retardant fabric, particularly a method and product for manufacturing a nylon-polyethylene interwoven double-sided coated fabric. Background Technology

[0002] In certain special environments in the outdoor field, some camping equipment such as tents need to have properties such as ultra-light weight, high tear resistance, durability and water resistance, flame retardancy, UV resistance, and slip resistance.

[0003] While current outdoor gear in this field possesses certain of the aforementioned properties, the fabrics are heavy and inconvenient to carry, have poor tear resistance, insufficient waterproof and pressure-sensitive durability, poor UV resistance, and are not smooth enough. To improve the functionality of the fabric and give it characteristics such as ultra-lightweight, high tear resistance, durable waterproofing, flame retardancy, UV resistance, and smoothness, there is an urgent need to develop a comprehensive, multi-functional fabric. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a method and product for manufacturing a double-sided coated nylon-polyethylene interwoven fabric that utilizes the excellent properties of each fiber through a specific processing technique to achieve all-around multifunctionality.

[0005] The objective of this invention can be achieved through the following technical solution: A method for manufacturing a nylon-polyethylene interwoven double-sided coated fabric, comprising the following steps:

[0006] 1) Yarn spinning:

[0007] First, the ethanol solutions of ethylenediamine and oxalic acid are stirred and mixed at a temperature above 60°C in an equimolar ratio. After neutralization to form a salt, the solution precipitates out. After filtration, alcohol washing, and drying, a 63% aqueous solution is finally prepared.

[0008] 2) Fabric weaving:

[0009] The 20D nylon yarn prepared in step 1) is made by arranging 20D nylon and polyethylene warp yarns in a 24:2 ratio, inserting 3 26 reeds, and weaving 20D nylon and polyethylene weft yarns in a 21:2 ratio.

[0010] 3) Flat-width cold reactor treatment:

[0011] The formula used is: 30% liquid alkali 30-40g / l, penetrant 2g / l, refining agent 5g / l, degreasing agent 2g / l. Mix and stir evenly to prepare the liquid. Put the fabric into the padding trough to immerse in the liquid, and then stack it.

[0012] 4), Acid dyeing:

[0013] The treated and washed grey fabric in step 3) is put into a normal temperature jig dyeing machine for dyeing operation, and the dyed fabric is washed out of the cylinder;

[0014] 5), tentering setting:

[0015] The fabric is set by a setting machine;

[0016] 6), waterproof finishing of the fabric:

[0017] The fabric is treated by a setting machine by padding waterproof agent, using the formula: waterproof agent 710G: 60G / L, and then baking;

[0018] 7), calender finishing:

[0019] The waterproof finished fabric is treated by a calender;

[0020] 8), PU coating finishing on the front of the fabric:

[0021] The front of the fabric is coated by a roll coater with single-sided PU glue, and the formula of the PU glue is: bottom general glue HX-928T: 80 parts, soft dry method resin HX-8021: 50 parts, flame-retardant oil FR-30: 40 parts, halogen-free flame-retardant powder-2: 20 parts, melamine bridging agent: 5 parts, melamine accelerator: 2.5 parts, matt powder OK412: 5 parts, flow leveling smooth agent NH-3777: 1 part, and UV anti-ultraviolet powder: 2 parts.

[0022] 9), silicone coating finishing on the back of the fabric:

[0023] The back of the fabric is coated by a roll coater with single-sided silicone, and the formula of the silicone glue is: silicone 660: 100 parts, bridging agent 6A: 2 parts, catalyst 6C: 1 part, and halogen-free flame-retardant powder 860S: 5 parts.

[0024] In the above method for manufacturing the nylon-polyethylene interwoven double-coated fabric, in step 1), the ethanol solution of ethylenediamine and the ethanol solution of oxalic acid are mixed in an autoclave, the temperature of the autoclave ranges from 220 to 240℃, the pressure ranges from 1.7 to 1.8MPa, and the pre-polycondensation pressure maintaining time is 2h.

[0025] In the above method for manufacturing the nylon-polyethylene interwoven double-coated fabric, in step 3), after the padding of the liquid, the fabric is squeezed by a mangle to make the liquid evenly distributed on the fabric, and then the fabric is stacked for not less than 48h.

[0026] In the above method for manufacturing the nylon-polyethylene interwoven double-coated fabric, in step 4), the initial dyeing temperature is 40℃, the temperature rising rate is 1℃ / min, and the temperature is raised to 95℃ and maintained for 40min.

[0027] In the method for manufacturing the nylon-polyethylene interwoven double-coated fabric, the temperature of the setting machine in step 5) is 160 DEG C, and the speed is 30 m / min.

[0028] In the method for manufacturing the nylon-polyethylene interwoven double-coated fabric, the temperature of the setting machine in step 6) is 180 DEG C, the speed is 30-40 m / min, the calender pressure is 3 kg, and the effective width of the setting is 152 cm.

[0029] In the method for manufacturing the nylon-polyethylene interwoven double-coated fabric, the temperature of the calender in step 7) is 120 DEG C, the pressure is 6 MPa, and the speed is 30 m / min.

[0030] In the method for manufacturing the nylon-polyethylene interwoven double-coated fabric, after the PU glue coating in step 8), baking is performed, the baking temperature is 150 DEG C, the viscosity of the glue is 21000-23000 mPas, the dry glue consumption is 12-13 g / m2, and the effective width of the fabric is 150 cm.

[0031] In the method for manufacturing the nylon-polyethylene interwoven double-coated fabric, after the silicon glue coating in step 9), baking is performed, the baking temperature is 150 DEG C, the viscosity of the glue is 5000 mPas, the dry glue consumption is 3-4 g / m2, and the effective width of the fabric is 150 cm.

[0032] A product comprising the anti-ultraviolet waterproof water pressure resistant and thin flame-retardant fabric manufactured by the method for manufacturing the nylon-polyethylene interwoven double-coated fabric.

[0033] Compared with the prior art, the method for manufacturing the nylon-polyethylene interwoven double-coated fabric and the product have the following beneficial effects:

[0034] The present application adopts 20D nylon and polyethylene thread two-component fiber interweaving, and overcomes the shortcomings of the prior art, such as no waterproof and oil-proof performance and camouflage performance of the protective clothing, poor wearability, no high tear of the tent fabric, no smoothness, poor waterproof durability, poor flame retardation, and large weight of the product, etc. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1This is a flowchart illustrating the manufacturing process of a double-sided coated nylon-polyethylene interwoven fabric. Detailed Implementation

[0036] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0037] Example 1

[0038] like Figure 1 As shown, the method for manufacturing this nylon-polyethylene interwoven double-sided coated fabric includes the following steps:

[0039] 1) Yarn spinning:

[0040] First, ethanol solutions of ethylenediamine and ethylenediamine are stirred and mixed at a temperature above 60°C in an equimolar ratio. After neutralization to form a salt, the salt precipitates out. After filtration, alcohol washing, and drying, a 63% aqueous solution is finally prepared. Nylon 66 salt undergoes condensation polymerization under high temperature conditions, accompanied by the removal of water, to generate linear high molecular weight nylon 66.

[0041] In step 1), the ethanol solution of ethylenediamine and the ethanol solution of oxalic acid are mixed in an autoclave. The temperature range of the autoclave is about 220-240℃, the pressure range is 1.7-1.8MPa, and the pre-polymerization pressure holding time is 2h.

[0042] 2) Fabric weaving:

[0043] The 20D nylon yarn prepared in step 1) is made by arranging 20D nylon and polyethylene warp yarns in a 24:2 ratio, inserting 3 26 reeds, and weaving 20D nylon and polyethylene weft yarns in a 21:2 ratio.

[0044] 3) Flat-width cold reactor treatment:

[0045] The formula used is: 30% liquid alkali 30-40g / l, penetrant 2g / l, refining agent 5g / l, degreasing agent 2g / l. Mix and stir evenly to prepare the liquid. Put the fabric into the padding trough to immerse in the liquid, and then stack it.

[0046] In step 3), after the impregnation of the fabric is completed, the fabric is squeezed by a rolling mill to make the fabric evenly distributed on the fabric, and then the stacking time is not less than 48 hours.

[0047] 4), Acid dyeing:

[0048] After the greige fabric has been cleaned in step 3), it is placed in a room temperature dyeing machine for dyeing. The dyed greige fabric is then washed out of the dyeing vat.

[0049] In step 4), the cylinder entry dyeing temperature is 40℃, the temperature rising rate is 1℃ / min, and the temperature is raised to 95℃ and kept for 40min.

[0050] 5), drawing setting:

[0051] The shaped fabric is treated by a setting machine;

[0052] In step 5), the temperature of the setting machine is 160℃, and the speed is 30m / min.

[0053] 6), waterproof finishing of the fabric:

[0054] The fabric is treated by a setting machine for immersion waterproof agent treatment, and the formula is: waterproof agent 710G: 60G / L, and then baking;

[0055] In step 6), the temperature of the setting machine is 180℃, the speed is 30-40m / min, the calender pressure is 3kg, and the effective width of setting is 152cm.

[0056] 7), calender finishing:

[0057] The waterproof finished fabric is treated by a calender; thus, better gloss and flatness are obtained.

[0058] In step 7), the temperature of the calender is 120℃, the pressure is 6MPa, and the speed is 30m / min.

[0059] 8), PU coating finishing on the front of the fabric:

[0060] The front of the fabric is treated by a roll coater for single-sided PU glue coating finishing, and the formula of the PU glue is: bottom universal glue HX-928T: 80 parts, soft dry method resin HX-8021: 50 parts, flame-retardant oil FR-30: 40 parts, halogen-free flame-retardant powder-2: 20 parts, melamine bridging agent: 5 parts, melamine accelerator: 2.5 parts, matt powder OK412: 5 parts, flow smooth agent NH-3777: 1 part, and UV anti-ultraviolet powder: 2 parts; through coating PU glue, single-sided anti-ultraviolet and flame-retardant effects are realized.

[0061] In step 8), after the PU glue coating is completed, baking is carried out, the baking temperature is 150℃, the glue viscosity is 21000mPas-23000mPas, the dry glue consumption is 12-13g / ㎡, and the effective width of the fabric is 150cm.

[0062] 9), silicone coating finishing on the back of the fabric:

[0063] The back of the fabric is treated by a roll coater for single-sided silicone coating finishing, and the formula of the silicone glue is: silicone 660: 100 parts, bridging agent 6A: 2 parts, catalyst 6C: 1 part, and halogen-free flame-retardant powder 860S: 5 parts.

[0064] In step 9), after the completion of the silicon glue coating, baking is performed at a temperature of 150 DEG C, the viscosity of the glue is 5000 mPas, the dry glue consumption is 3-4 g / m2, and the effective width of the fabric is 150 cm.

[0065] Compared with the prior art, the method for manufacturing the nylon-polyethylene interwoven double-sided coated fabric has the following beneficial effects:

[0066] The present application adopts 20D nylon and polyethylene thread two-component fiber interweaving, through the interwoven good strength weaving structure of nylon and polyethylene thread, pretreatment before dyeing and finishing, one side PU waterproof, flame-retardant, ultraviolet resistant and one side silicon glue coating and other process technologies, so that the fabric has the characteristics of light weight, flame retardant, durable waterproof, high tear resistance, ultraviolet resistance, smoothness and comfort. In addition, after acid dyeing, the double-color interweaving effect of nylon coloring but polyethylene not coloring is produced; thereby the fabric has a wider development space, and has good environmental protection characteristics, production operation safety, and the final product is non-toxic, non-side effect and good functional durability.

[0067] Example Two

[0068] Based on example one, the difference of the present example is:

[0069] A product comprising the ultraviolet resistant, waterproof, water pressure resistant and flame-retardant thin fabric manufactured by the method for manufacturing the nylon-polyethylene interwoven double-sided coated fabric. The product can be protective clothing, tents and other fabric products.

[0070] Compared with the prior art, the product has the following beneficial effects:

[0071] The present application adopts 20D nylon and polyethylene thread two-component fiber interweaving, through the interwoven good strength weaving structure of nylon and polyethylene thread, pretreatment before dyeing and finishing, one side PU waterproof, flame-retardant, ultraviolet resistant and one side silicon glue coating and other process technologies, so that the fabric has the characteristics of light weight, flame retardant, durable waterproof, high tear resistance, ultraviolet resistance, smoothness and comfort. In addition, after acid dyeing, the double-color interweaving effect of nylon coloring but polyethylene not coloring is produced; thereby the fabric has a wider development space, and has good environmental protection characteristics, production operation safety, and the final product is non-toxic, non-side effect and good functional durability.

[0072] The specific embodiments described herein are merely illustrative of the spirit of the application. Various modifications or changes in the specific embodiments described herein can occur to those skilled in the art to which the application pertains without departing from the spirit of the application, and it is understood that such modifications or changes are to be considered as within the scope of the application as defined by the appended claims.

Claims

1. A method of making a nylon polyethylene interwoven double-coated fabric, characterized by, Comprising the following steps: 1) Yarn spinning: First, the ethanol solution of ethylenediamine and the ethanol solution of oxalic acid are mixed at an equal molar ratio at a temperature above 60°C, neutralized into a salt, and then precipitated, filtered, alcohol washed, dried, and finally configured into a 63% aqueous solution; In step 1), the ethanol solution of ethylenediamine and the ethanol solution of oxalic acid are mixed in an autoclave, the autoclave temperature range is about 220-240°C, the pressure range is 1.7-1.8 MPa, and the pre-polycondensation pressure holding time is 2h; 2) Fabric weaving: The 20D nylon yarn prepared in step 1) is arranged according to a ratio of 24:2 of 20D nylon warp and polyethylene, and woven with 26 reeds and 3 threads, and the 20D nylon and polyethylene are weft-knitted in a ratio of 21:2; 3) Flat cold stacking treatment: The formula is: 30% liquid alkali 30-40g / l, penetrant 2g / l, refining agent 5g / l, and deoiling agent 2g / l, which are mixed and stirred uniformly to configure the liquid, the fabric is immersed in the liquid in the material rolling tank, and then the stacking treatment is carried out; In step 3), after completing the immersion of the liquid, the fabric is extruded by the rolling mill to make the liquid evenly distributed on the fabric, and then the stacking time is not less than 48h; 4) Acid dyeing: The fabric treated in step 3) is washed and put into a normal temperature jigger for dyeing operation, and the dyed fabric is washed out of the cylinder; In step 4), the initial dyeing temperature is 40°C, the temperature rising rate is 1°C / min, the temperature is raised to 95°C and kept for 40min; 5) Tentering and setting: The fabric is set by a setting machine; In step 5), the temperature of the setting machine is 160°C, and the speed is 30m / min; 6) Fabric waterproof finishing: The fabric is treated with waterproof agent by a setting machine, and the formula is: waterproof agent 710G:60G / L, and then baking is carried out; In step 6), the temperature of the setting machine is 180°C, the speed is 30-40m / min, the rolling mill pressure is 3kg, and the effective door width of setting is 152cm; 7) Pressing finishing: The waterproof finished fabric is treated by a press; In step 7), the temperature of the press is 120°C, the pressure is 6MPa, and the speed is 30m / min; 8) Front PU coating finishing of fabric: The front of the fabric is coated with single-sided PU glue by a rolling machine, and the formula of PU glue is: bottom general glue HX-928T:80 parts, soft dry method resin HX-8021:50 parts, flame-retardant oil FR-30:40 parts, halogen-free flame-retardant powder-2:20 parts, melamine bridging agent:5 parts, melamine accelerator:2.5 parts, matt powder OK412:5 parts, smooth and smooth agent NH-3777:1 part, and UV anti-ultraviolet powder:2 parts; In step 8), after the PU glue coating is completed, baking is carried out, the baking temperature is 150°C, the glue viscosity is 21000-23000mPas, the dry glue consumption is 12-13g / ㎡, and the effective door width of the fabric is 150cm; 9) Silicone coating finishing on the back of the fabric: The reverse side of the fabric is coated with silicone glue by using a rolling machine. The silicone glue formula is: silicone 660:100 parts, bridging agent 6A:2 parts, catalyst 6C:1 part, and halogen-free flame-retardant powder 860S:5 parts. In step 9), after the silicone coating is completed, baking is performed at a temperature of 150 DEG C. The viscosity of the glue is 5000 mPas, the dry glue consumption is 3-4 g / m2, and the effective width of the fabric is 150 cm.

2. A product characterized by, The anti-ultraviolet waterproof water pressure resistant and flame-retardant thin fabric prepared by the method for preparing the nylon polyethylene interwoven double-sided coated fabric of claim 1.

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