CN112482036A - Processing technology of bottom fly - Google Patents
Processing technology of bottom fly Download PDFInfo
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- CN112482036A CN112482036A CN202011324341.6A CN202011324341A CN112482036A CN 112482036 A CN112482036 A CN 112482036A CN 202011324341 A CN202011324341 A CN 202011324341A CN 112482036 A CN112482036 A CN 112482036A
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- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0006—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using woven fabrics
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
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- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
- C08G18/341—Dicarboxylic acids, esters of polycarboxylic acids containing two carboxylic acid groups
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
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- C08G18/348—Hydroxycarboxylic acids
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
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- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3855—Low-molecular-weight compounds having heteroatoms other than oxygen having sulfur
- C08G18/3857—Low-molecular-weight compounds having heteroatoms other than oxygen having sulfur having nitrogen in addition to sulfur
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/71—Monoisocyanates or monoisothiocyanates
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
- D06N3/0025—Rubber threads; Elastomeric fibres; Stretchable, bulked or crimped fibres; Retractable, crimpable fibres; Shrinking or stretching of fibres during manufacture; Obliquely threaded fabrics
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
- D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
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- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/146—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes characterised by the macromolecular diols used
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
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- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
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- D06N2209/00—Properties of the materials
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Abstract
The application relates to a processing technology of a bottom fly, which relates to a bottom fly main body, wherein the bottom fly main body comprises an intermediate layer and reinforcing layers bonded on two sides of the intermediate layer, the intermediate layer is formed by weaving warps and wefts, the warps adopt chinlon with the fineness of 15D-20D, the warp density is 1000-minus-one 1005, the wefts adopt spandex, and the weft density is 950-minus-one 955; the fineness range of the spandex is 20D-30D; the processing technology of the bottom fly main body comprises the following steps: s1, weaving a middle layer by adopting the nylon and the spandex with the fineness according to the warp density and the weft density; s2, uniformly coating the reinforcing layer on the upper surface and the lower surface of the middle layer after hot melting by using a hot melting machine to form the reinforcing layer, and carrying out hot melting on the surface of the middle layer and preliminarily bonding the reinforcing layer and the middle layer; and S3, blowing hot air by using a hot air blower to enable the reinforcing layer to be further bonded with the middle layer to obtain the bottom fly main body. This application has the effect that prevents the zip fastener and cliies the end front of a garment.
Description
Technical Field
The application relates to the technical field of clothes, in particular to a processing technology of a bottom fly.
Background
Along with the improvement of the daily living standard of people, the requirements of people on various performances of clothes are higher and higher.
Zippers are commonly used as connectors for left and right front flaps of garments, and in a disassembled state, the zippers are left and right halves which are sewn to the left and right front flaps, respectively. Because the lining of the clothes is generally made of light, thin and smooth cloth, and the lining is looser than the outer surface of the clothes and has more redundancy, people who pass through the clothes mostly encounter the problem that the lining of the clothes is twisted into the zipper, so that the zipper is blocked, and the clothes can not be pulled up and opened. In the existing clothes, a bottom front fly (also called a passing surface or a welt) with the width of a few centimeters is arranged between a zipper and a lining to be used as transition, so that the probability that the lining is twisted into the zipper can be reduced.
With respect to the related art in the above, the inventors consider that: the fabric of the bottom front of the garment is soft, and the bottom front of the garment is still inevitably easy to clamp in the zipper closing process to be improved.
Disclosure of Invention
In order to prevent the zipper from clamping the bottom fly, the application provides a processing technology of the bottom fly.
The processing technology of the bottom fly adopts the following technical scheme:
a processing technology of a bottom fly relates to a bottom fly main body, the bottom fly main body comprises an intermediate layer and reinforcing layers bonded on two sides of the intermediate layer, the intermediate layer is formed by weaving warps and wefts, the warps adopt chinlon with the fineness of 15D-20D, the warp density is 1000-graded sand 1005, the wefts adopt spandex, and the weft density is 950-graded sand 955; the fineness range of the spandex is 20D-30D; the processing technology of the bottom fly main body comprises the following steps:
s1, weaving a middle layer by adopting the nylon and the spandex with the fineness according to the warp density and the weft density;
s2, uniformly coating the reinforcing layer on the upper surface and the lower surface of the middle layer after hot melting by using a hot melting machine to form the reinforcing layer, and carrying out hot melting on the surface of the middle layer and preliminarily bonding the reinforcing layer and the middle layer;
and S3, blowing hot air by using a hot air blower to enable the reinforcing layer to be further bonded with the middle layer to obtain the bottom fly main body.
By adopting the technical scheme, the chinlon has the characteristics of higher tensile strength and better wear resistance; spandex is a polyurethane fiber and has excellent elasticity; the middle layer obtained by weaving the nylon and the spandex in a mixed mode has the advantages of the nylon and the spandex, namely, the middle layer has high strength and excellent elasticity, and meanwhile, the reinforcing layer can be coated conveniently. The upper surface and the lower surface of the middle layer are coated with the reinforcing layers, so that the bottom fly can be stiff, and the bottom fly can be effectively prevented from being clamped in the zipper closing process.
Optionally, the reinforcing layer comprises the following components in parts by weight:
60-80 parts of 1, 12-dodecanediol;
10-12 parts of hexadecyl isocyanate;
1-2 parts of titanium tert-butoxide.
By adopting the technical scheme, the hexadecyl isocyanate and the 1, 12-dodecanediol have long carbon chains, and the tert-butyl titanium is used as a catalyst, so that hydroxyl groups in the hexadecyl isocyanate and the 1, 12-dodecanediol react, the molecular weight can be increased, the acting force between molecules is increased, and when a formed reinforcing layer is subjected to a stretching action and is broken, a larger external tension action is required, so that the reinforcing layer has higher toughness, and meanwhile, the reinforcing layer can endow the bottom fly body with the characteristics of smoothness, stiffness, thickness and fullness, so that the bottom fly body has higher hardness while keeping comfort, and the problem that the existing bottom fly body is softer and is easy to clamp by a zipper is solved.
Optionally, the reinforcing layer further comprises 2-3 parts by weight of phthalic anhydride.
By adopting the technical scheme, a benzene ring structure with larger steric hindrance can be introduced by adding phthalic anhydride, so that the interaction between molecular chains is increased, and the intrinsic viscosity of the system is increased; the introduction of the phthalic anhydride can generate a synergistic effect with the hexadecyl isocyanate, and the phthalic anhydride can react with the hexadecyl isocyanate to improve the reaction activity of the hexadecyl isocyanate, so that the reaction product of the hexadecyl isocyanate and the 1, 12-dodecanediol can be increased, the molecular weight and the intermolecular acting force can be increased, and the toughness of the reinforcing layer can be further improved; on the other hand, phthalic anhydride may also act as a catalyst for the crosslinking reaction.
Optionally, the reinforcing layer further comprises 0.1-0.2 parts by weight of a chain extender.
By adopting the technical scheme, the chain extender promotes the reaction of the 1, 12-dodecanediol and the hexadecyl isocyanate.
Optionally, the chain extender is a mixture of dimethylthiotoluenediamine and dimethylolpropionic acid.
By adopting the technical scheme, the dimethylthiotoluenediamine and the dimethylolpropionic acid are used as chain extenders of the 1, 12-dodecanediol and the hexadecyl isocyanate to promote the reaction activity of the hexadecyl isocyanate, so that the hexadecyl isocyanate is reacted with the 1, 12-dodecanediol more, the product with high molecular weight is improved, the intermolecular force is further improved, and the purpose of improving the strength of the reinforcing layer is achieved.
Optionally, the weight ratio of the dimethylthiotoluenediamine to the dimethylolpropionic acid is 1: 1.
By adopting the technical scheme, the dimethylthiotoluenediamine and the dimethylolpropionic acid are used as chain extenders of the 1, 12-dodecanediol and the hexadecyl isocyanate, so that the breaking strength, the elongation and the bonding strength of the generated reinforcing layer are high.
Optionally, the reinforcing layer further comprises 0.8-1 part of a cross-linking agent by weight.
By adopting the technical scheme, the cross-linking agent enables linear or slightly branched chain type macromolecules formed by the 1, 12-dodecanediol and the hexadecyl isocyanate to be converted into a three-dimensional network structure, so that the bonding firmness of the reinforcing layer and the middle layer can be improved, and the purpose of stiffening the bottom fly main body is achieved.
Optionally, the cross-linking agent is ethylenediamine.
By adopting the technical scheme, the ethylenediamine has double functional groups, so that the linear crosslinking formed by the 1, 12-dodecanediol and the hexadecyl isocyanate is easily caused, the connection strength of the ethylenediamine and the hexadecyl isocyanate is improved, the bonding stability between the reinforcing layer and the middle layer is favorably improved, the toughness of the reinforcing layer is favorably improved, and the tensile strength of the middle layer is further improved.
To sum up, the application comprises the following beneficial technical effects:
1. the upper surface and the lower surface of the middle layer are coated with the reinforcing layers, so that the bottom fly can be stiff, and the bottom fly can be effectively prevented from being clamped in the zipper closing process;
2. phthalic anhydride is added to introduce a benzene ring structure with larger steric hindrance, so that the interaction between molecular chains is increased, and the intrinsic viscosity of the system is increased; the introduction of the phthalic anhydride can generate a synergistic effect with the hexadecyl isocyanate, and the phthalic anhydride can react with the hexadecyl isocyanate to improve the reaction activity of the hexadecyl isocyanate, so that the reaction product of the hexadecyl isocyanate and the 1, 12-dodecanediol can be increased, the molecular weight and the intermolecular acting force can be increased, and the toughness of the reinforcing layer can be further improved;
3. the ethylenediamine has bifunctional groups, easily causes the cross-linking between the linear types formed by the 1, 12-dodecanediol and the hexadecyl isocyanate, improves the connection strength of the two, is favorable for improving the bonding stability between the reinforcing layer and the middle layer, and is also favorable for improving the toughness of the reinforcing layer and further improving the tensile strength of the middle layer.
Drawings
FIG. 1 is a cross-sectional view of a bottom flap body according to an embodiment of the present application.
In the figure, 1, an intermediate layer, 2 and a reinforcing layer.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses a processing technology of a bottom fly.
Example 1
A processing technology of a bottom fly, referring to fig. 1, relates to a bottom fly body, and the bottom fly body comprises an intermediate layer 1 and reinforcing layers 2 arranged on the upper surface and the lower surface of the intermediate layer 1. The middle layer 1 is formed by weaving warps and wefts, wherein the warps are made of chinlon with the fineness of 15D-20D, the warp density is 1000-minus-plus 1005, the wefts are made of spandex, and the weft density is 950-minus-plus 955; the fineness range of the spandex is 20D-30D; the processing technology of the bottom fly main body comprises the following steps:
s1, weaving the middle layer 1 by adopting the chinlon and the spandex with the fineness according to the warp density and the weft density;
s2, weighing the required components in parts by weight, preliminarily mixing 60 parts of 1, 12-dodecanediol, 10 parts of hexadecyl isocyanate and 1 part of tert-butyl titanium, heating to 120 ℃ at 1.33KPa, adding 2 parts of phthalic anhydride, continuing to react for 30min, heating to about 160 ℃, continuing to stir for 30min to generate a prepolymer, then adding 0.05 part of dimethylthio toluenediamine and 0.05 part of dimethylol propionic acid, further reacting to generate polyurethane, finally adding 0.8 part of ethylenediamine for reaction, and grinding and sieving under an anaerobic condition to obtain powdery polyurethane hot melt adhesive for later use; the contents of the components are shown in the following table 1;
s3, uniformly coating the reinforcing layer 2 in the step S2 on the upper surface and the lower surface of the middle layer 1 after hot melting by a hot melting machine to form the reinforcing layer 2, and carrying out hot melting on the surface of the middle layer 1 and preliminarily bonding the reinforcing layer 2 and the middle layer 1;
and S4, blowing hot air with the temperature of 75 ℃ by using a hot air blower to further bond the reinforcing layer 2 and the middle layer 1 to obtain the bottom fly main body.
Example 2
A processing technology of a bottom fly, referring to fig. 1, relates to a bottom fly body, and the bottom fly body comprises an intermediate layer 1 and reinforcing layers 2 arranged on the upper surface and the lower surface of the intermediate layer 1. The middle layer 1 is formed by weaving warps and wefts, wherein the warps are made of chinlon with the fineness of 15D-20D, the warp density is 1000-minus-plus 1005, the wefts are made of spandex, and the weft density is 950-minus-plus 955; the fineness range of the spandex is 20D-30D; the processing technology of the bottom fly main body comprises the following steps:
s1, weaving the middle layer 1 by adopting the chinlon and the spandex with the fineness according to the warp density and the weft density;
s2, weighing the required components in parts by weight, preliminarily mixing 80 parts of 1, 12-dodecanediol, 12 parts of hexadecyl isocyanate and 2 parts of tert-butyl titanium, heating to 120 ℃ at 1.33KPa, adding 3 parts of phthalic anhydride, continuing to react for 30min, heating to about 160 ℃, continuing to stir for 30min to generate a prepolymer, then adding 0.1 part of dimethyl-thio-toluenediamine and 0.1 part of dimethylol propionic acid, further reacting to generate polyurethane, finally adding 1 part of ethylenediamine for reaction, and grinding and sieving under an anaerobic condition to obtain powdery polyurethane hot melt adhesive for later use; the contents of the components are shown in the following table 1;
s3, uniformly coating the polyurethane hot melt adhesive in the step S2 on the upper surface and the lower surface of the middle layer 1 after hot melting by a hot melting machine to form a reinforcing layer 2, and the reinforcing layer 2 is hot-melted on the surface of the middle layer 1 and is primarily bonded with the middle layer 1;
and S4, blowing hot air with the temperature of 75 ℃ by using a hot air blower to further bond the reinforcing layer 2 and the middle layer 1 to obtain the bottom fly main body.
Comparative example 1
The difference from example 1 is that hexadecylisocyanate is not added; the contents of the components are shown in table 1 below.
Comparative example 2
The difference from example 1 is that phthalic anhydride was not added and the content of each component is shown in table 1 below.
Comparative example 3
The difference from example 1 is that phthalic anhydride and zinc glutarate were not added and the contents of the respective components are shown in table 1 below.
Comparative example 4
The difference from example 1 is that ethylenediamine was replaced with glutaraldehyde and the contents of the components are shown in table 1 below.
The tensile strength is the tension borne by a sample with a certain width when the sample is broken, and is expressed by kN/m, and the higher the tensile strength is, the stronger the toughness of the bottom fly body is; application 80g/m2The bottom fly body is used as a sample, and performance detection is carried out by using a tensile strength tester under standard laboratory conditions (the temperature is 23 ℃ plus or minus 1 ℃ and the relative humidity is 50 percent plus or minus 2 percent), and the test results are shown in the following table 2.
TABLE 1 ingredient content Table for each example and comparative example
TABLE 2 tensile Strength test results of examples 1-2 and comparative examples 2-6
From the test results of table 2 above, the following conclusions can be drawn:
1. from the comparison between the example 1 and the comparative example 1, the addition of the hexadecyl isocyanate can improve the toughness of the 1, 12-dodecanediol, so that the bottom fly body is stiff, and the possibility of clamping the bottom fly by the zipper is further reduced;
2. as can be seen from the comparison between example 1 and comparative examples 2 and 3, the addition of phthalic anhydride can improve the toughness of 1, 12-dodecanediol, and phthalic anhydride and the chain extender have a synergistic effect and have a better reinforcing effect on the toughness of 1, 12-dodecanediol;
3. from a comparison of example 1 and comparative example 4, it can be seen that the addition of ethylenediamine has a better reinforcing effect on the toughness of 1, 12-dodecanediol than glutaraldehyde.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A processing technology of a bottom fly relates to a bottom fly main body and is characterized in that: the bottom fly main body comprises an intermediate layer (1) and reinforcing layers (2) bonded on two sides of the intermediate layer (1), the intermediate layer (1) is formed by weaving warps and wefts, the warps adopt chinlon with the fineness of 15D-20D, the warp density is 1000-cottony 1005, the wefts adopt spandex, and the weft density is 950-cottony 955; the fineness range of the spandex is 20D-30D; the processing technology of the bottom fly main body comprises the following steps:
s1, weaving an intermediate layer (1) by adopting the chinlon and the spandex with the fineness according to the warp density and the weft density;
s2, uniformly coating the reinforcing layer (2) on the upper surface and the lower surface of the middle layer (1) after hot melting by using a hot melting machine to form the reinforcing layer (2), and carrying out hot melting on the surface of the middle layer (1) and preliminarily bonding the reinforcing layer (2) and the middle layer (1);
and S3, blowing hot air by using a hot air blower to enable the reinforcing layer (2) to be further bonded with the middle layer (1) to obtain the bottom fly main body.
2. The processing technology of the bottom fly as claimed in claim 1, characterized in that: the reinforcing layer (2) comprises the following components in parts by weight:
60-80 parts of 1, 12-dodecanediol;
10-12 parts of hexadecyl isocyanate;
1-2 parts of titanium tert-butoxide.
3. The processing technology of the bottom fly as claimed in claim 2, characterized in that: the reinforcing layer (2) further comprises 2-3 parts of phthalic anhydride by weight.
4. The processing technology of the bottom fly as claimed in claim 2, characterized in that: the reinforcing layer (2) also comprises 0.1-0.2 part of catalyst according to the parts by weight.
5. The processing technology of the bottom fly as claimed in claim 4, characterized in that: the catalyst is a mixture of dimethylthiotoluenediamine and dimethylolpropionic acid.
6. The processing technology of the bottom fly as claimed in claim 5, characterized in that: the weight ratio of the dimethylthiotoluenediamine to the dimethylolpropionic acid is 1: 1.
7. The processing technology of the bottom fly as claimed in claim 2, characterized in that: the reinforcing layer (2) also comprises 0.8-1 part of cross-linking agent according to the parts by weight.
8. The processing technology of the bottom fly as claimed in claim 7, characterized in that: the cross-linking agent is ethylenediamine.
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|---|---|---|---|
| CN202011324341.6A CN112482036A (en) | 2020-11-23 | 2020-11-23 | Processing technology of bottom fly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011324341.6A CN112482036A (en) | 2020-11-23 | 2020-11-23 | Processing technology of bottom fly |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20200250U1 (en) * | 2001-12-06 | 2002-05-08 | Saertex Wagener Gmbh & Co Kg | Textile reinforcement |
| CN202407213U (en) * | 2011-12-01 | 2012-09-05 | 浙江报喜鸟服饰股份有限公司 | Clothes bound with snap fastener |
| CN205072102U (en) * | 2015-08-21 | 2016-03-09 | 麦工装（北京）服装有限公司 | Prevent clothing structure that zip fastener was blocked by lining |
| CN110367614A (en) * | 2019-07-22 | 2019-10-25 | 安徽西格玛服饰有限公司 | A kind of processing technology of water-proof stain-resistant down jackets |
| CN110735360A (en) * | 2019-10-09 | 2020-01-31 | 浙江超凡日用品有限公司 | Production process of degradable paper bags |
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2020
- 2020-11-23 CN CN202011324341.6A patent/CN112482036A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20200250U1 (en) * | 2001-12-06 | 2002-05-08 | Saertex Wagener Gmbh & Co Kg | Textile reinforcement |
| CN202407213U (en) * | 2011-12-01 | 2012-09-05 | 浙江报喜鸟服饰股份有限公司 | Clothes bound with snap fastener |
| CN205072102U (en) * | 2015-08-21 | 2016-03-09 | 麦工装（北京）服装有限公司 | Prevent clothing structure that zip fastener was blocked by lining |
| CN110367614A (en) * | 2019-07-22 | 2019-10-25 | 安徽西格玛服饰有限公司 | A kind of processing technology of water-proof stain-resistant down jackets |
| CN110735360A (en) * | 2019-10-09 | 2020-01-31 | 浙江超凡日用品有限公司 | Production process of degradable paper bags |
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Application publication date: 20210312 |