WO2017024512A1

WO2017024512A1 - Woven tape for integrating shoulder strap and chest strap of women's underwear

Info

Publication number: WO2017024512A1
Application number: PCT/CN2015/086590
Authority: WO
Inventors: 王�琦
Original assignee: 福建省百凯弹性织造有限公司
Priority date: 2015-08-11
Filing date: 2015-08-11
Publication date: 2017-02-16

Abstract

Provided is a woven tape for integrating shoulder straps and chest straps of women's underwear, containing an upper woven tape and a lower woven tape. One end of the upper woven tape and one end of the lower woven tape are connected in an interwoven manner and separated, swan hook adjustment holes are arranged in the separation part, a swan hook is provided at the other end of the connection part of the upper woven tape and the lower woven tape. One end of the swan hook is a crook, the other end of the swan hook is connected to the woven tape, and the crook hooks the swan hook adjustment hole for connection and adjustment. An opening end of the swan hook is connected to the separation part of an adjustment crook. The spacing of the woven tape can be adjusted at will by means of the structure of the adjustment crook, and the adjustment range is relatively narrow, which is beneficial for prolonging the service life of the underwear. The opening end of the swan hook is connected to the separation part of the adjustment hook. Thus, the problem that conventional underwear is prone to falling when people take part in exercise is solved, and the underwear is safer and more reliable.

Description

A shoulder strap and a webbing for a female underwear

[Technical Field]

The invention relates to the technical field of textile production, in particular to a webbing for the shoulder strap and the shroud of a female underwear.

【Background technique】

According to the way of production and the formation of knitted fabrics, the webbing is divided into two categories: weft knitted fabrics and warp knitted fabrics. The weft knitted fabric is a knitted fabric in which yarns are sequentially fed into the needle of the knitting machine in the weft direction, and are sequentially bent into a loop and nested with the old stitches. One (set) of yarns can form a course and thus have a higher elongation in the weft direction. A warp knit fabric is a knitted fabric formed by one or several sets of warp yarns arranged in parallel and fed into all the knitting needles of the knitting machine. The same group of yarns form only one or two coils in each course, then shifts to the next row and loops in the other longitudinal direction, thereby aligning the wales into pieces. The coils formed by each set of yarns are arranged along the warp direction of the fabric. The stitches formed by the same set of warp yarns are distributed on the knitted fabric to form various warp knitting structures. The warp knit fabric has the characteristics that it is not easy to be dissipated, the stretchability is less than that of the weft knitted fabric, and the dimensional stability is good. Often used as a finishing underwear and interior decoration materials and in the fields of industry, agriculture and medicine. Warp knitted fabrics are used in outer garments and their properties are close to woven materials.

[Summary of the Invention]

SUMMARY OF THE INVENTION It is an object of the present invention to overcome the deficiencies of the prior art and to provide a webbing for a shoulder strap and a web of a female undergarment.

The object of the present invention is achieved by the following technical solutions:

A shoulder strap and a webbing integrally formed for a female underwear, comprising an upper webbing and a lower webbing, wherein one end of the upper webbing and the lower webbing are interwoven and separated, and the separating portion is a nine-word buckle The knot hole, the other end of the joint of the upper webbing and the lower webbing is provided with a nine-button buckle.

One end of the nine-character buckle is a hook, and the other end is connected with the webbing, and the hook is hooked into the nine-character buckle adjusting hole to achieve the connection and adjustment function, mainly to connect and adjust the length of the two ends of the shroud.

The open end of the nine-shaped buckle is connected to the separated portion of the adjustment hook.

A method for preparing a webbing for a shoulder strap and a web of a female underwear, the specific steps of which are:

(1) One end of the upper webbing and the lower webbing are interlaced and separated, and the separating portion is a nine-button adjusting hole, thereby replacing the traditional back hook;

(2) The other end of the joint between the upper webbing and the lower webbing is provided with a nine-character buckle;

(3) Both ends of the upper webbing are separated by oblique angles, and the separation length is the length of the shoulder strap, two shoulder straps are turned up by the oblique angle, and the lower webbing is a shroud, and finally the webbing with the shoulder shoulder is formed.

The utility model relates to a shoulder belt and a webbing integrally formed for a female underwear, wherein the raw material is an antibacterial nylon-spandex webbing material, and the antibacterial nylon-spandex webbing material is made of a low melting point antibacterial function nylon slice and spandex slicing, and is melted juxtaposed. The method of composite spinning obtains an antibacterial nylon-spandex webbing material; the mass ratio of the low melting point antibacterial function nylon section to the spandex section is 1:0.05 to 1:0.15.

The invention discloses a preparation method of an antibacterial nylon-spandex webbing material, and the specific steps thereof are as follows:

First, the synthesis of antibacterial function modifier

(a) Preparation of p-dihydroxy-p-phenylphosphine

The p-dihydroxyphenylphosphine, bromine water and iron bromide are added to the reaction vessel, heated to 65-75 ° C for 0.5-1.75 h, and filtered to obtain a dark red product, which is added to the range of 0.1-0.5 mol/L at normal temperature. In the sodium hydroxide solution, after completely dissolving, reacting at 80 to 95 ° C for 1 to 3 hours, and then recrystallizing the product in a steam bath, and repeating three times to obtain a white p-dihydroxy-p-phenylphosphine;

The molar ratio of the p-dihydroxyphenylphosphine, bromine water and iron bromide is 1:1.2:0.01-1:1.5:0.05;

(b) Preparation of o-nitroaniline diazonium salt

The o-nitroaniline was vigorously stirred in 12 mol/L concentrated hydrochloric acid and rapidly cooled to 0 ° C. After 1.5 h, 4 mol/L sodium nitrite aqueous solution was added, and the reaction was carried out at 0 to 5 ° C for 0.5 to 1.0 h, followed by filtration to obtain a neighbor. Nitroaniline diazonium salt;

(c) Preparation of azo compounds

The p-dihydroxy-p-phenylphosphine prepared in the step (a) is added to a mixed solution of ethanol and distilled water, the solution temperature is kept at 5 to 10 ° C, and the o-nitroaniline diazonium salt prepared in the step (b) is added dropwise in portions. Draining, washing with water, drying to obtain an azo compound, which is a dark pink crystal;

The volume ratio of ethanol to distilled water in the mixed solution of ethanol and distilled water is 1:1;

The mass fraction of the p-dihydroxy-p-phenol phosphine in a mixed solution of ethanol and distilled water is 4 to 6%;

(d) Preparation of antibacterial function modifier

Under the protection of nitrogen, the azo compound prepared in the step (c) is added to a mixed solution of water and ethanol of 3.0 mol/L sodium hydroxide, and the reducing agent thiourea urea is stirred and added in portions at 60 to 65 ° C. After reacting for 2 hours, it is cooled to room temperature, and the pH of hydrochloric acid is adjusted to be between 5 and 6. The mixture is filtered, dried in the air, and the amount of recrystallization is dried to obtain a crude product of the functional modifier, and then the functional modifier crude product, hydrofluoric acid and concentrated Nitric acid is added to the reaction vessel, heated to 65-75 ° C for 0.5-1.0 h, and filtered to obtain an off-white product, which is cooled and filtered, dried in the air, recrystallized and dried to obtain an antibacterial function modifier;

The volume ratio of water to ethanol in the mixed solution of water and ethanol is 1:1;

The molar ratio of the thiourea dioxide to the azo compound is 1:0.5 to 1:0.75;

The molar ratio of the crude product of the functional modifier, hydrofluoric acid and concentrated nitric acid is 1:1.2:0.01～1:1.5:0.05;

2. Preparation of terminal carboxyl modified caprolactam

The caprolactam and adipic acid are polymerized to obtain a terminal carboxyl group-modified caprolactam;

The specific process is as follows: the caprolactam and adipic acid are compounded according to a molar ratio of 1:1.0 to 1:1.10, then deionized water is added as a catalyst, and the first step is carried out at 95-100 ° C for 10-30 min. Ring, then the second step is further carried out at 145-160 ° C for 2 ~ 3h to carry out amidation reaction, to prepare terminal carboxyl modified caprolactam;

Third, the preparation of low melting point antibacterial function nylon chips

Taking caprolactam as raw material, adding functional assistants in proportion, in the nitrogen atmosphere, the first esterification ring-opening reaction is carried out under normal pressure conditions at 200-210 ° C for 0.5-1.0 h, and the second step is followed by condensation reaction. Under the condition of a nitrogen atmosphere pressure of 0.15 to 0.2 MPa, the reaction is carried out at 220 to 230 ° C for 3 to 3 4h, then the third step of the transesterification reaction and the vacuum degree of 60-100Pa, the reaction is carried out at 240-260 ° C for 1 to 1.5 h, after the reaction is completed, the melt granulation is carried out to prepare a low melting point antibacterial functional nylon slice;

The esterification reaction of the terminal carboxyl group-modified caprolactam with the antibacterial function modifier is carried out by the first step reaction, and the water required for the ring opening of caprolactam is simultaneously formed, thereby catalyzing the ring opening reaction of caprolactam, and at the same time, the caprolactam modified caprolactam and the antibacterial function are modified. The rear end group of the esterification reaction is a carboxyl group. After the second step of pressure condensation reaction, the antibacterial function modifier is introduced into the nylon main chain, and the caprolactam ring opening reacts with the terminal amino polydimethylsiloxane to make The highly flexible polydimethylsiloxane segment is introduced into the nylon segment, and the molecular weight of the nylon component is further increased by the third step of high temperature and high vacuum esterification reaction, and the structure has a controllable flexible chain. Segment of the low melting point antibacterial function of nylon chips.

The functional auxiliary is a mixture of an antibacterial function modifier, a terminal carboxyl group modified caprolactam and a terminal amino polydimethylsiloxane;

The molar ratio of the antibacterial function modifier to caprolactam is 0.03:1 to 0.05:1;

The molar ratio of the terminal carboxyl group modified caprolactam to caprolactam is 0.06:1 to 0.15:1;

The molar ratio of the terminal amino polydimethylsiloxane to caprolactam is 0.01:1 to 0.15:1;

The low melting point antibacterial function nylon chip has a melting point of 190 to 200 ° C, and an intrinsic viscosity of 1.2 to 1.4 dL / g;

4. Preparation of antibacterial nylon-spandex webbing material

The antibacterial nylon-spandex webbing material is obtained by using a low-melting-point antibacterial function nylon chip and spandex slicing as a raw material, and using a fusion side-by-side composite spinning method;

The specific process of the fusion side-by-side composite spinning is as follows: using low-melting-point antibacterial function nylon chips and spandex chips as raw materials, and using the method of melting side-by-side composite spinning, the low-melting-point antibacterial function nylon chips and spandex chips are respectively dried and melted by screw extrusion. After metering, it enters the side-by-side composite component, performs melt compound distribution, and the melt is transferred into the composite spinneret for spinning. The nascent antibacterial nylon-spandex webbing material from the composite spinneret is cooled by the ring, and bundled. Hot roll drafting, hot roll oiling, heat setting, winding to obtain antibacterial nylon-spandex webbing material;

The fused parallel composite spinning condition is: spinning temperature is 210-230 ° C, spinning winding speed Degree is 4500 ~ 5000m / min;

The mass ratio of the low melting point antibacterial function nylon slice to the spandex slice is 1:0.05～1:0.15;

The spandex slice has a melting point of 180 to 200 ° C and an intrinsic viscosity of 1.5 to 2.0 dL / g;

The parallel composite component is a two-melt distribution and re-confluent flow channel, which can distribute and confluent the low melting point antibacterial function nylon melt and spandex, thereby realizing spinning in the composite spinneret;

The heat setting temperature is 120 to 130 ° C;

The spinning hole in the composite spinneret is a parallel circular hole, the low melting point antibacterial function nylon melt passes through the first spinning hole, the spandex melt passes through the second spinning hole, and the first spinning hole diameter is 0.1 ～0.5mm, the second orifice has a diameter of 0.02~0.05mm;

Parallel composite spinning is the main method for preparing materials with high elasticity. Because of the low melting point and high elasticity of spandex spinning process, conventional nylon and polyester materials have high melting point, good crystallinity and poor elasticity. By juxtaposed composite spinning with an elastic material, the present invention introduces a polydimethylsiloxane material containing a soft segment into a nylon matrix material, imparting high flexibility to the nylon material while breaking the regularity of the nylon segment and reducing The crystallization property of the nylon matrix reduces the melting point of the nylon matrix, and has a suitable spinning temperature and elasticity with the spandex material, which is advantageous for the composite of the nylon component and the spandex component in the parallel composite spinning process, and is also used for materials such as sports fabrics. The antibacterial and hygroscopic requirements of spandex and nylon materials are achieved by introducing an antibacterial functional component into the nylon material to achieve a long-lasting antibacterial effect of the nylon in the form of a chemical reaction.

The hot roller oiling temperature is 135-145 ° C, the oiling residence time is 0.1-0.3 ms, and the oiling agent adopts an antibacterial special oil agent;

The preparation method of the antibacterial special oil agent is as follows:

(1) Antibacterial special oil A component: the ratio of water-soluble chitosan to aminopropyltriethoxysilane is 1:2.1～1:3.3, ethylene glycol is used as solvent, chitosan and The aminopropyltriethoxysilane has a mass fraction of 35 to 55% in an ethylene glycol solvent, and is dissolved and mixed at 80 to 95 ° C to prepare an antibacterial special oil component A;

(2) Antibacterial special oil agent B component: mixing the glycidoxypropyltriethoxysilane with the silver nitrate solution, and then performing the normal temperature hydrolysis reaction for 25 to 45 minutes; preparing the antibacterial special oil component B component;

The volume ratio of the glycidoxypropyltriethoxysilane to the silver nitrate solution is 1:20 to 1:50;

The concentration of the silver nitrate solution is 0.01 to 0.05 mol / L;

(3) Preparation of antibacterial special oil agent: then according to the mass ratio of antibacterial special oil component A and antibacterial special oil agent B component is 1:0.5～1:1.0, and antibacterial special oil component A is added And the deionized water is 5 times of the total mass of the antibacterial special oil component B, and then heated and stirred at 35 to 45 ° C for 45 to 90 minutes to prepare an antibacterial special oil;

The water-soluble chitosan has a degree of deacetylation of more than 90% and a viscosity of 0.7 to 1.0 Pa·s.

Chitosan and silver ions have excellent broad-spectrum antibacterial effects. However, single chitosan and silver ions are difficult to recombine on the surface of fibrous materials, and silver ions can be oiled on oils because they can chelate with amino-functional groups. In the process, since the matrix of nylon and spandex material itself has an amino functional group, it can adhere to the surface of the fiber by chelation of silver ions, and the amino functional group contained in the molecular segment of chitosan is also attached by chelation of silver ions. The fiber surface further enhances the antibacterial effect of the antibacterial nylon-spandex webbing material; the aminopropyltriethoxysilane and the glycidoxypropyltriethoxysilane in the oil agent, due to the epoxy group at high temperature (120 ° C The above can be cured with an amino group, while the epoxy group and the ethoxy group can be hydrolyzed in water, and the long-chain siloxane itself has excellent flexibility in film formation, so the oil agent is coated on the fiber. The formation of a flexible cross-linked film, while the low viscosity and low surface energy of the siloxane-based material can not only reduce the surface tension of the oil agent, but also benefit the oil. At the same time, the coating amount of the oil agent can be reduced, and the cross-linked antibacterial film is formed on the surface of the fiber, thereby imparting more durable antibacterial properties to the material, and solving the current antibacterial oil agent lacking chemical bonding sites, washing resistance and rubbing resistance. Poor, the conventional antibacterial oil cross-linking structure has a large viscosity and a large coating amount, and after cross-linking, the flexibility is poor, which affects the flexibility and elasticity of the material.

Compared with the prior art, the positive effects of the present invention are:

The invention utilizes the structure of the adjusting hook, can adjust the spacing at will, and the adjustment range is relatively thin, which is beneficial to prolonging the service life of the underwear; and has more technical advantages than the back needle connection at the two ends of the conventional shroud.

The open end of the nine-character buckle is connected with the separated portion of the adjusting hook, which can solve the problem that the conventional underwear is easy to fall off when people are exercising, and is more safe and reliable.

A shoulder strap and a webbing integrally formed for a female underwear to overcome the traditional shoulder strap and the shroud to be separately produced, and then the back needle is attached for the connection defect. The present application is integrally formed, and the processing process is simple and easy. Promotion.

[Description of the Drawings]

Figure 1 is a schematic view of a female underwear;

Figure 2 is a schematic view of the nine-character buckle;

Figure 3 is a schematic view of the nine-character buckle adjustment hole;

Figure 4 is a schematic diagram of the synthesis reaction of the antibacterial function modifier;

Figure 5 is a hydrogen-nuclear magnetic resonance spectrum of the antibacterial function modifier;

Figure 6 is a carbon-nuclear magnetic resonance spectrum of the antibacterial function modifier;

The markings in the drawing are: 22 shoulder straps, 23 straps, 231 nine-button buckles, 232 nine-button buckle adjustment holes.

【detailed description】

DETAILED DESCRIPTION OF THE INVENTION A specific embodiment of a webbing for a shoulder strap and a web of a female undergarment is provided below.

Example 1

Referring to Figures 1, 2, 3, a shoulder strap and a webbing integrally formed for a feminine undergarment, comprising an upper webbing and a lower webbing, wherein one end of the upper webbing and the lower webbing are interwoven and separated. The separation portion is a nine-button adjustment hole 232, and the other end of the connection between the upper webbing and the lower webbing is provided with a nine-word buckle 231.

One end of the nine-character buckle is a hook, and the other end is connected with the webbing, and the hook is hooked into the nine-character buckle adjusting hole to achieve connection and adjustment.

(3) Both ends of the upper webbing are separated by oblique angles, and the separation length is the length of the shoulder strap 22, The shoulder straps are turned upside down to form two shoulder straps, and the lower webbing is a shroud 23, which ultimately forms a webbing with a shoulder.

The utility model relates to a shoulder belt and a webbing integrally formed for a female underwear, wherein the raw material is an antibacterial nylon-spandex webbing material, and the antibacterial nylon-spandex webbing material is made of a low melting point antibacterial function nylon slice and spandex slicing, and is melted juxtaposed. The method of composite spinning obtains an antibacterial nylon-spandex webbing material; the mass ratio of the low melting point antibacterial function nylon section to the spandex section is 1:0.05.

First, the synthesis of antibacterial function modifier

(a) Preparation of p-dihydroxy-p-phenylphosphine

The p-dihydroxyphenylphosphine, bromine water and iron bromide are added to the reaction vessel, heated to 65-75 ° C for 0.5-1.75 h, and filtered to obtain a dark red product, which is added to 0.2 mol/L of hydrogen at normal temperature. In the sodium oxide solution, after completely dissolving, reacting at 80 to 95 ° C for 1 to 3 hours, and then recrystallizing the product in a steam bath, and repeating three times to obtain a white p-dihydroxy-p-phenylphosphine;

The molar ratio of the p-dihydroxyphenylphosphine, bromine water and iron bromide is 1:1.2:0.01;

(b) Preparation of o-nitroaniline diazonium salt

(c) Preparation of azo compounds

The mass fraction of the p-dihydroxy-p-phenylphosphine in a mixed solution of ethanol and distilled water is 4%;

(d) Preparation of antibacterial function modifier

Referring to Figure 4, under the protection of nitrogen, the azo compound prepared in the step (c) is added to a mixed solution of water and ethanol of 3.0 mol/L sodium hydroxide, and the reducing agent thiourea urea is added thereto in a divided manner. After reacting at -65 ° C for 2 h, cool to room temperature, adjust the pH of hydrochloric acid between 5 and 6, and filter by suction. Dry in the shade, the amount of recrystallization is dried, and the crude product of the functional modifier is obtained. Then, the crude product of the functional modifier, hydrofluoric acid and concentrated nitric acid are added to the reaction vessel, heated to 65-75 ° C for 0.5-1.0 h, and filtered. An off-white product, which is filtered by cooling, dried in the shade, recrystallized and dried to obtain an antibacterial function modifier;

The molar ratio of the thiourea dioxide to the azo compound is 1:0.5;

The molar ratio of the crude product of the functional modifier, hydrofluoric acid and concentrated nitric acid is 1:1.2:0.01;

2. Preparation of terminal carboxyl modified caprolactam

The specific process is as follows: the caprolactam and adipic acid are compounded according to a molar ratio of 1:1.05, then deionized water is added as a catalyst, and the first step is carried out at 95-100 ° C for 10-30 min to hydrolyze open-loop of caprolactam, and then In the second step, the amidation reaction is carried out at 145-160 ° C for 2 to 3 hours to prepare a terminal carboxyl group-modified caprolactam;

Third, the preparation of low melting point antibacterial function nylon chips

Taking caprolactam as raw material, adding functional assistants in proportion, in the nitrogen atmosphere, the first esterification ring-opening reaction is carried out under normal pressure conditions at 200-210 ° C for 0.5-1.0 h, and the second step is followed by condensation reaction. Under a nitrogen atmosphere pressure of 0.15 to 0.2 MPa, the reaction is carried out at 220 to 230 ° C for 3 to 4 hours, and then the third step of transesterification is carried out at a vacuum of 60 to 100 Pa, and the reaction is carried out at 240 to 260 ° C for 1 to 1.5. h, after the reaction is completed, melt granulation is carried out to prepare a nylon pellet having a low melting point antibacterial function;

The molar ratio of the antibacterial function modifier to caprolactam is 0.03:1;

The molar ratio of the terminal carboxyl group modified caprolactam to caprolactam is 0.06:1;

The molar ratio of the terminal amino polydimethylsiloxane to caprolactam is 0.01:1;

4. Preparation of antibacterial nylon-spandex webbing material

The specific process of fused side-by-side composite spinning is: low-melting antibacterial function nylon slicing and spandex cutting The film is made of raw materials, and the method of melting side-by-side composite spinning is adopted. The low-melting antibacterial function nylon chips and spandex chips are respectively dried, melt extruded by a screw, and then metered into a side-by-side composite component for melt compound distribution and distributed melting. The body enters the composite spinneret for spinning, and the nascent antibacterial nylon-spandex webbing material from the composite spinneret is subjected to ring-blowing cooling, bundling, hot roll drawing, hot roll oiling, heat setting, and winding to obtain antibacterial nylon- Spandex webbing material;

The smelting side-by-side composite spinning condition is: a spinning temperature of 210 to 230 ° C, and a spinning winding speed of 4500 to 5000 m / min;

The mass ratio of the low melting point antibacterial function nylon slice to the spandex slice is 1:0.05;

The heat setting temperature is 120 to 130 ° C;

The spinning hole in the composite spinneret is a parallel circular hole, the low melting point antibacterial function nylon melt passes through the first spinning hole, the spandex melt passes through the second spinning hole, and the first spinning hole diameter is 0.1 Mm, the second orifice has a diameter of 0.02 mm;

The preparation method of the antibacterial special oil agent is as follows:

(1) Antibacterial special oil agent A component: the water-soluble chitosan and aminopropyltriethoxysilane molar ratio is 1:2.1, ethylene glycol as solvent, chitosan and aminopropyl three The mass fraction of ethoxysilane in ethylene glycol solvent is 35%, and is dissolved and mixed at 80-95 ° C to prepare component A for antibacterial special oil;

The volume ratio of the glycidoxypropyltriethoxysilane to the silver nitrate solution is 1:20;

The concentration of the silver nitrate solution is 0.01 mol / L;

(3) Preparation of antibacterial special oil agent: then according to the mass ratio of antibacterial special oil component A to antibacterial special oil component B: 1:0.5, and adding antibacterial special oil component A and antibacterial special oil agent B 5 times of the total mass of the deionized water, and then stirred at 35 ~ 45 ° C for 45 ~ 90min preparation An antibacterial special oil agent.

In Fig. 5, the characteristic peak of the amino group (4.0 ppm) is not found in the hydrogen nuclear magnetic resonance spectrum of the molecule of the antibacterial function modifier, and the molecular structure is symmetric after the azimuthal coupling corresponding to o-nitroaniline, so the corresponding The chemical shift (in ppm) migrated from the original 7.94 ppm and 6.72 ppm to (a and a') 7.98 ppm, while 6.88 ppm and 7.40 ppm migrated to (b and b') 7.45 ppm and 6.7 ppm on the benzene ring. The corresponding hydrogen adjacent to the phenolic hydroxyl group is a living wave hydrogen, and the azide nitroaniline which is prone to azidation undergoes a coupling reaction, so the corresponding chemical shift is 6.7 ppm, the number of hydrogen atoms is reduced, and the chemical shift is (c and c). ') 6.7 ppm and the chemical shift is (d) 7.1 ppm corresponding to the peak area ratio of 1:2, that is, a hydrogen atom reacts, so the reaction is carried out according to the design direction, and the obtained industry is a design synthesis product.

In Figure 6, there are only five types of carbon atoms for the reactive monomer p-hydroxymethylphenol phosphine oxide, and a new carbon atom (d) is formed due to the coupling reaction with azide o-nitroaniline. The chemical shift migrated from the original 134.0ppm to 131.0ppm, and for the (h) and (h') carbon atoms, it has a symmetrical structure in the reaction monomer, the chemical shift is 116.0ppm, and the adjacent nitrogen is reacted after the coupling reaction. Atomic influence, (h) carbon atom electron cloud density increases from 116.0ppm to 115.8ppm, while the corresponding (a) carbon atom is affected by adjacent (h) and (h') carbon atoms, chemical shift is shifted from 161.5ppm To 160.0ppm. At the same time, for o-nitroaniline, in the reactive monomer, after six kinds of carbon atoms, after amination, coupling and reduction, the molecular structure of the synthesized compound is symmetrical, and the carbon atom species in the molecule are reduced to three types. The corresponding chemical shift of carbon atoms migrated from 119.7 ppm and 135.7 ppm to (e' and e) 127.4 ppm, 121.9 ppm and 117.2 ppm migrated to (g' and g) 118.3 ppm, 135.0 ppm and 141.8 ppm migrated to (b' and b) 147.6 ppm. Therefore, it is indicated that o-nitroaniline has a chemical reaction with p-hydroxymethylphenol phosphine oxide and proceeds in the direction of synthesis to obtain the desired substance.

Example 2

A shoulder strap and a webbing integrally formed for a female underwear, comprising an upper webbing and a lower webbing, wherein one end of the upper webbing and the lower webbing are interwoven and separated, and the separating portion is a nine-button adjusting hole, the upper webbing A nine-button is placed on the other end of the connection to the lower webbing.

One end of the nine-character buckle is a hook, and the other end is connected with the webbing, and the hook is hooked into the nine-key buckle adjustment. Holes to achieve connection and regulation.

(3) Both ends of the upper webbing are separated by oblique angles, and the separation length is the length of the shoulder strap, and two shoulder straps are turned up by the oblique angle, and the lower webbing is a shroud, and finally the webbing with the shoulder shoulder is formed.

The utility model relates to a shoulder belt and a webbing integrally formed for a female underwear, wherein the raw material is an antibacterial nylon-spandex webbing material, and the antibacterial nylon-spandex webbing material is made of a low melting point antibacterial function nylon slice and spandex slicing, and is melted juxtaposed. The method of composite spinning obtains an antibacterial nylon-spandex webbing material; the mass ratio of the low melting point antibacterial function nylon section to the spandex section is 1:0.15.

First, the synthesis of antibacterial function modifier

(a) Preparation of p-dihydroxy-p-phenylphosphine

The molar ratio of the p-dihydroxyphenylphosphine, bromine water and iron bromide is 1:1.5:0.05;

(b) Preparation of o-nitroaniline diazonium salt

(c) Preparation of azo compounds

The mass fraction of the p-dihydroxy-p-phenol phosphine in a mixed solution of ethanol and distilled water is 6%;

(d) Preparation of antibacterial function modifier

The molar ratio of the thiourea dioxide to the azo compound is 1:0.75;

The molar ratio of the crude product of the functional modifier, hydrofluoric acid and concentrated nitric acid is 1:1.5:0.05;

2. Preparation of terminal carboxyl modified caprolactam

The specific process is as follows: the caprolactam and adipic acid are compounded according to a molar ratio of 1:1.10, then deionized water is added as a catalyst, and the first step is carried out at 95-100 ° C for 10-30 min to hydrolyze open-loop of caprolactam, and then In the second step, the amidation reaction is carried out at 145-160 ° C for 2 to 3 hours to prepare a terminal carboxyl group-modified caprolactam;

Third, the preparation of low melting point antibacterial function nylon chips

The functional auxiliary agent is an antibacterial function modifier, a terminal carboxyl group modified caprolactam and a terminal amino group poly 2 a mixture of three methyl siloxanes;

The molar ratio of the antibacterial function modifier to caprolactam is 0.05:1;

The molar ratio of terminal carboxyl modified caprolactam to caprolactam is 0.1:1;

The molar ratio of the terminal amino polydimethylsiloxane to caprolactam is 0.15:1;

4. Preparation of antibacterial nylon-spandex webbing material

The mass ratio of the low melting point antibacterial function nylon slice to the spandex slice is 1:0.15;

The heat setting temperature is 120 to 130 ° C;

The spinning hole in the composite spinneret is a parallel circular hole, the low melting point antibacterial function nylon melt passes through the first spinning hole, the spandex melt passes through the second spinning hole, and the first spinning hole diameter is 0.5 Mm, the second orifice has a diameter of 0.05 mm;

The preparation method of the antibacterial special oil agent is as follows:

(1) Antibacterial special oil A component: massage water-soluble chitosan and aminopropyltriethoxysilane The ratio is 1:3.3, using ethylene glycol as solvent, the mass fraction of chitosan and aminopropyltriethoxysilane in ethylene glycol solvent is 55%, and the mixture is prepared by dissolving and mixing at 80-95 °C. Producing antibacterial special oil component A;

The molar ratio of the glycidoxypropyltriethoxysilane to the silver nitrate solution is 1:50;

The concentration of the silver nitrate solution is 0.05 mol / L;

(3) Preparation of antibacterial special oil agent: then according to the mass ratio of antibacterial special oil component A to antibacterial special oil component B: 1:1.0, and adding antibacterial special oil component A and antibacterial special oil agent B The deionized water is 5 times of the total mass of the component, and then heated and stirred at 35 to 45 ° C for 45 to 90 minutes to prepare an antibacterial special oil.

Claims

A shoulder strap and a webbing integrally formed for a female underwear, characterized in that it comprises an upper webbing and a lower webbing, wherein one end of the upper webbing and the lower webbing are interwoven and separated, and the separation is a nine-button adjustment. The other end of the hole, the upper webbing and the lower webbing is provided with a nine-button.
A shoulder strap and a webbing integrally formed for a feminine underwear according to claim 1, wherein one end of the nine-shaped buckle is a hook, and the other end is connected to the webbing, and the hook is hooked into the nine-button adjustment hole.
A shoulder strap and a webbing integrally formed for a feminine undergarment according to claim 1, wherein the open end of the nine-shaped buckle is connected to the separated portion of the adjustment hook.
The method for preparing a webbing for a shoulder strap and a web of a female underwear according to claim 1, wherein the specific steps are as follows:

(1) One end of the upper webbing and the lower webbing are interlaced and separated, and the separating portion is a nine-button adjusting hole, thereby replacing the traditional back hook;

(2) The other end of the joint between the upper webbing and the lower webbing is provided with a nine-character buckle;

(3) Both ends of the upper webbing are separated by oblique angles, and the length of separation is the length of the shoulder strap, and the shoulder straps are turned up by the oblique angle to form a webbing with a shoulder.
A shoulder strap and a webbing integrally formed for a feminine underwear according to claim 1, wherein the raw material of the webbing is an antibacterial nylon-spandex webbing material, and the antibacterial nylon-spandex webbing material is The low melting point antibacterial function nylon slice and spandex slice are used as raw materials, and the antibacterial nylon-spandex webbing material is obtained by the method of fusion side-by-side composite spinning; the mass ratio of the low melting point antibacterial function nylon slice to the spandex section is 1:0.05-1:0.15.
The shoulder strap and the webbing integrally formed for a feminine underwear according to claim 1, wherein the specific steps of the preparation method of the antibacterial nylon-spandex webbing material are:

First, the synthesis of antibacterial function modifier

(a) Preparation of p-dihydroxy-p-phenylphosphine

(b) Preparation of o-nitroaniline diazonium salt

(c) Preparation of azo compounds

The p-dihydroxy-p-phenylphosphine prepared in the step (a) is added to a mixed solution of ethanol and distilled water, the solution temperature is kept at 5 to 10 ° C, and the o-nitroaniline diazonium salt prepared in the step (b) is added dropwise in portions. Draining, washing with water, drying to obtain an azo compound;

The mass fraction of the p-dihydroxy-p-phenol phosphine in a mixed solution of ethanol and distilled water is 4 to 6%;

(d) Preparation of antibacterial function modifier

2. Preparation of terminal carboxyl modified caprolactam

The caprolactam and adipic acid are polymerized to obtain a terminal carboxyl group-modified caprolactam;

Third, the preparation of low melting point antibacterial function nylon chips

Taking caprolactam as raw material, adding functional assistants in proportion, in the nitrogen atmosphere, the first esterification ring-opening reaction is carried out under normal pressure conditions at 200-210 ° C for 0.5-1.0 h, and the second step is followed by condensation reaction. Under a nitrogen atmosphere pressure of 0.15 to 0.2 MPa, the reaction is carried out at 220 to 230 ° C for 3 to 4 hours, and then the third step of transesterification is carried out at a vacuum of 60 to 100 Pa, and the reaction is carried out at 240 to 260 ° C. 1.5h, after the reaction is completed, melt granulation is carried out to prepare a low-melting antibacterial functional nylon chip;

4. Preparation of antibacterial nylon-spandex webbing material

The low-melting-point antibacterial function nylon chip and spandex slice are used as raw materials, and the low-melting antibacterial function nylon chips and spandex chips are respectively dried by the method of melting side-by-side composite spinning, and are melted and extruded by a screw, and then metered into a parallel type composite component. The melt compound is distributed, the distributed melt enters the composite spinneret for spinning, and the nascent antibacterial nylon-spandex webbing material from the composite spinneret is subjected to ring blow cooling, bundling, hot roll drafting, hot roll oiling, Heat setting, winding to obtain antibacterial nylon-spandex webbing material.
A shoulder strap and a webbing integrally formed for a feminine underwear according to claim 6, wherein in the synthesis of the antibacterial function modifier, the preparation process of the antibacterial function modifier is: under nitrogen Under the protection, the azo compound prepared in the step (c) is added to a mixed solution of water and ethanol of 3.0 mol/L sodium hydroxide, and the reducing agent thiourea urea is stirred and added in portions at 60 to 65 ° C. After reacting for 2 hours, it is cooled to room temperature, hydrochloric acid is added to adjust the pH between 5 and 6, filtered by suction, dried in the shade, and the amount of recrystallization is dried to obtain a crude product of functional modifier, and then the functional modifier crude product, hydrofluoric acid and concentrated Nitric acid is added to the reaction vessel, heated to 65-75 ° C for 0.5-1.0 h, and filtered to obtain an off-white product, which is cooled and filtered, dried in the air, recrystallized and dried to obtain an antibacterial function modifier;

The molar ratio of the thiourea dioxide to the azo compound is 1:0.5 to 1:0.75;

The molar ratio of the crude product of the functional modifier, hydrofluoric acid and concentrated nitric acid is 1:1.2:0.01-1:1.5:0.05.
The shoulder strap and the webbing integrally formed for the female underwear according to claim 6, wherein in the preparation of the low melting point antibacterial functional nylon chip, the functional auxiliary agent is an antibacterial function modifier, and the carboxyl group is terminally a mixture of modified caprolactam and terminal amino polydimethylsiloxane;

The molar ratio of the antibacterial function modifier to caprolactam is 0.03:1 to 0.05:1;

The molar ratio of the terminal carboxyl group modified caprolactam to caprolactam is 0.06:1 to 0.15:1;

The molar ratio of the terminal amino polydimethylsiloxane to caprolactam is from 0.01:1 to 0.15:1.
A shoulder strap and a webbing integrally formed for a feminine underwear according to claim 6, wherein in the preparation of the antibacterial nylon-spandex webbing material, the hot roller oil temperature of the melted side-by-side composite spinning is 135~ 145 ° C, the oil retention time is 0.1 ~ 0.3ms, the oiling agent uses antibacterial special oil;

The preparation method of the antibacterial special oil agent is as follows:

(1) Antibacterial special oil A component: the ratio of water-soluble chitosan to aminopropyltriethoxysilane is 1:2.1～1:3.3, ethylene glycol is used as solvent, chitosan and The aminopropyltriethoxysilane has a mass fraction of 35 to 55% in an ethylene glycol solvent, and is dissolved and mixed at 80 to 95 ° C to prepare an antibacterial special oil component A;

(2) Antibacterial special oil agent B component: mixing the glycidoxypropyltriethoxysilane with the silver nitrate solution, and then performing the normal temperature hydrolysis reaction for 25 to 45 minutes; preparing the antibacterial special oil component B component;

The volume ratio of the glycidoxypropyltriethoxysilane to the silver nitrate solution is 1:20 to 1:50;

(3) Preparation of antibacterial special oil agent: then according to the mass ratio of antibacterial special oil component A and antibacterial special oil agent B component is 1:0.5～1:1.0, and antibacterial special oil component A is added The antibacterial special oil is prepared by dissolving the deionized water 5 times of the total mass of the antibacterial special oil component B, and then heating and stirring at 35 to 45 ° C for 45 to 90 minutes.