CN105942595B - A kind of bilayer lace surface seamless bra and preparation method thereof - Google Patents
A kind of bilayer lace surface seamless bra and preparation method thereof Download PDFInfo
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- CN105942595B CN105942595B CN201610325215.XA CN201610325215A CN105942595B CN 105942595 B CN105942595 B CN 105942595B CN 201610325215 A CN201610325215 A CN 201610325215A CN 105942595 B CN105942595 B CN 105942595B
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41C—CORSETS; BRASSIERES
- A41C3/00—Brassieres
- A41C3/0014—Brassieres made from one piece with one or several layers
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41C—CORSETS; BRASSIERES
- A41C5/00—Machines, appliances, or methods for manufacturing corsets or brassieres
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- C—CHEMISTRY; METALLURGY
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- 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
- C09J175/08—Polyurethanes from polyethers
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
- A41B2300/00—Details of shirts, underwear, baby linen or handkerchiefs not provided for in other groups of this subclass
- A41B2300/35—Seams
- A41B2300/52—Seams made by welding or gluing
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
- A41B2400/00—Functions or special features of shirts, underwear, baby linen or handkerchiefs not provided for in other groups of this subclass
- A41B2400/80—Friction or grip reinforcement
- A41B2400/82—Friction or grip reinforcement with the body of the user
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Corsets Or Brassieres (AREA)
Abstract
The present invention relates to brassiere technical fields, more particularly to a kind of double-deck lace surface seamless bra, including cup and side round part, cup includes the inner fabric layer set gradually from the inside to the outside, elastic cotton layer and lace layer, and lace layer is including the first lace layer and fits in the positive second lace layer of the first lace layer.Cup setting double-deck lace layer of the present invention in brassiere, good appearance, two layers of lace layer is bonded in advance, again by behind the edge of the first lace layer and inner fabric layer suture along suture reversely turn down after be covered in the surface of cup, the suturing part of cup is set to be wrapped in the inside of lace layer, while reinforcing cup edge, reduce the suture that skin is in direct contact, suturing part and stria are prevented to the friction of skin or forms impression, increase wearing comfort sense, and preparation process is simple, two layers of lace structure is dislocatedly distributed, and more creates an aesthetic feeling.
Description
Technical field
The present invention relates to brassiere technical fields more particularly to a kind of double-deck lace surface seamless bra and preparation method thereof.
Background technology
Brassiere is that women is used to protect breast and moulds the personal clothing of good chest type, with the improvement of living standards, beautiful
The target pursued when seeing comfortably as vast be worn by women.The combination of lace and brassiere embodies women for brassiere aesthetics
High request, lace brassiere because its with obscuration aesthetic sense, woman charm can be showed due to be increasingly subject to favor.
When existing lace brassiere makes, often the edge of lace and cup fabric is met conjunction, cup edge in sewing process
Surfaces externally and internally all have apparent suture stria, influence the aesthetics of brassiere, while the stria of inner surface directly connects with skin
It touches, the end of a thread for suturing stria and stretching is easy to be pressed in skin surface formation impression when wearing, and stimulates skin, affects wearing and relax
Appropriateness.
Invention content
Technical problem to be solved by the invention is to provide a kind of good appearance, wearing comfort, suture stria is hidden in cover
The double-deck lace surface seamless bra and preparation method thereof inside cup.
To achieve the above object, the technical solution adopted by the present invention is as follows.
A kind of bilayer lace surface seamless bra, including cup and side round part, the cup include setting gradually from the inside to the outside
Inner fabric layer, elastic cotton layer and lace layer, lace layer includes the first lace layer and fits in the first lace layer positive the
Two lace layers；It is provided with steel ring between inner fabric layer and elastic cotton layer；
First lace layer is provided with the first folding portion of cladding inner fabric layer and elastic cotton layer edge, and the first folding portion is by the
Along the reverse folded formation of suture of the first lace layer, the first lace layer after the suture of the imbricate of one lace layer and inner fabric layer
Suture be located at inner fabric layer；
The edge of second lace layer is provided with the second folding portion of the edge fold inward along elastic cotton layer, the second folding portion
It is sutured with steel ring；
First lace layer and the second lace layer are bonded by hot melt adhesive.
The present invention is bonded in advance in the double-deck lace layer of cup setting of brassiere, good appearance, two layers of lace layer, then by first
The edge of lace layer with after inner fabric layer suture along suture reversely turn down after be covered in the surface of cup, make suture portion quilt
Fully wrapped around in the inside of lace layer, and the suturing part of two layers of lace layer mutually staggers, and while reinforcing cup edge, reduces
The suture that skin is in direct contact and its friction to skin, increase wearing comfort sense.
Wherein, the elastic cotton layer is vertical surface layer or spongy layer.
Wherein, the lower end of the side round part is provided with elastic band, and the medial surface of elastic band and side round part mutually sews up, seam joints
It is formed in stealthy flat-seam line of the elastic belt surface without flat-seam stria.Elastic belt surface can prevent flat-seam line in flesh without flat-seam stria
Skin surface forms impression, stimulates skin, influences wearing comfort degree.
Wherein, the outer surface of the side round part is provided with gusset lace, and gusset lace mutually splices with the second lace layer, gusset
Lace forms roses and lace in the lower end of side round part, and gusset lace is equipped with lock seaming along the upper end of side round part.Due to above structure
Setting, keeps brassiere shape more attractive, side round part is more durable.
Wherein, the second lace layer is not exclusively coated on the outer surface of the first lace layer, makes the part of the first lace layer
Region displays, and appearance forms the visual double-deck lace layer structure, increases mysterious dim aesthetic feeling, makes the second lace layer only
The subregion and inner fabric layer for having its edge are sewed up, and most of region by Hot melt adhesive plaster together in the appearance of the first lace layer
Face reduces the suture on surface, increases aesthetic feeling and wearing comfort degree.
The present invention also provides a kind of preparation methods of the double-deck lace surface seamless bra, include the following steps：
The making of cup：
（1）The fabric for preparing cup is cut out as suitable size, inner fabric layer, steel ring and elastic cotton layer is compound, preheating
Pressing is fixed, and pre- hot pressing temperature is 120-125 DEG C, pressure 1-2Pa, time 3-4s；
（2）After second lace layer and the first lace layer are carried out dislocation bonding using hot melt adhesive, just the first lace layer
The edge in face fits in the inner surface of inner fabric layer, after the suture of the imbricate of the first lace layer and inner fabric layer, by first
Lace layer is overturn along suture, fits in the front of elastic cotton layer；The steel ring of the edge of the second lace layer and cup is sutured again
It is fixed；
（3）Inner fabric layer, elastic cotton layer and lace layer is hot-forming, and hot pressing temperature is 130-135 DEG C, pressure 5-
6Pa, time 10-12s, obtains cup；
The making of side round part：Side round part is made, elastic band is sutured in the inside of side round part lower end；
The whole suture of brassiere：The whole suture for carrying out brassiere, obtains the double-deck lace surface seamless bra
Further, in the making step of the side round part, the sewing method of elastic band is：It will using flat seaming machine presser feet
Elastic band turns down, and sewing needle penetrates in the middle part of the elastic band of elastic band fold place when suture, after passing through the fabric on the inside of side round part
It is pierced by the middle part of the elastic band of elastic band fold place again, as Ya Song mechanisms promote fabric, elastic band is sewn to one with fabric
It rises, flat-seam line is can't see on the surface of elastic band.
Wherein, the hot melt adhesive includes the component of following parts by weight：
20-30 parts of polyadipate -1,4- butyl glycol ester diols
15-25 parts of phthalic acid diethylene glycol diacrylate
10-20 parts of polytetrahydrofuran ether glycol
10-30 parts of methyl diphenylene diisocyanate
3-8 parts of polydimethylsiloxane
10-20 parts of chain extender
1-3 parts of dimethylformamide
1-3 parts of aerosil
0.5-2 parts of antioxidant
0.1-0.2 parts of catalyst.
The main component of brassiere fabric is fiber, contains ester bond, ehter bond, amido bond isopolarity key and hydroxyl in fiber
With carboxyl etc., hygroscopicity is stronger, and dimethylformamide can be such that the polar group in fiber expands, and drop low-fiber crystallinity, promote-
OH groups are reacted with-the NCO of hot melt adhesive, and cross-linked structure compound and the polar bond in fiber of generation can form intermolecular
Gravitation increases adhesion strength.
The phenyl ring of phthalic acid diethylene glycol diacrylate has stronger rigidity, and it is strong to provide stronger stripping
Degree, phenyl ring steric effect make crystallinity substantially reduce.Polytetrahydrofuran ether glycol is a kind of linear polyether two of end primary hydroxyl
Alcohol is formed by tetrahydrofuran ring opening polymerization, can assign the good resistance to low temperature of hot melt adhesive, wear-resisting, ageing-resistant, hydrolytic resistance
Can, improve its flexibility.
Polydimethylsiloxane can be modified the polyurethane compositions of hot melt adhesive, make the silica chain of polyurethane to material surface
Migration and enrichment, change the surface tension of polyurethane, increase its hydrophobicity, effectively promote the water resistance of hot melt adhesive, make text
Chest can be washed repeatedly without influencing its adhesive property.
Gas phase nano silica has more surface micropore, has large specific surface area and the adsorbed hydroxyl content height etc. excellent
Point, it is good with other organic principle compatibilities in hot melt adhesive, it can be dispersed in hot melt adhesive system, improve the heat-resisting of hot melt adhesive
Property, water resistance and adhesion strength.
Further, the weight average molecular weight of the polyadipate -1,4-butanediol esterdiol is 1800-2200, poly- tetrahydrochysene
The weight average molecular weight of furans ether glycol is 1800-2200.Polyadipate -1,4-butanediol esterdiol with molecular weight increase,
Intermolecular active force increases, and the crystallinity enhancing of segment, the adhesion strength of hot melt adhesive also increases；Polytetrahydrofuran ether two
Alcohol increases with relative molecular mass, and intermolecular ehter bond quantity increases, and segment becomes soft therewith, but adhesion strength reduces, this
It invents and is compounded using polyadipate -1,4-butanediol esterdiol and polytetrahydrofuran ether glycol, poly- have both of hot melt adhesive is made to bond by force
Degree height and the good advantage of flexibility.
Further, the chain extender is 1,4-butanediol, makes hot melt adhesive while hardness reduces, and adhesion strength declines
Very little.
Further, the catalyst is stannous octoate, antioxidant three（2,4- di-tert-butyl-phenyls）Phosphite ester
With at least one of 3- aryl-benzofuran -2- ketone.
Further, the preparation method of the hot melt adhesive is as follows：
By polyadipate -1,4- butyl glycol ester diols, phthalic acid diethylene glycol diacrylate, PolyTHF
Vacuum dehydration at a temperature of 110-120 DEG C of ether glycol, polydimethylsiloxane, dimethylformamide and antioxidant, is cooled to 50-
60 DEG C, under the protection of nitrogen, 50-60 DEG C of molten methyl diphenylene diisocyanate is added, is warming up to 85-95 DEG C, instead
100-150min is answered, until when-NCO mass fractions reach the 95% of theoretical value, chain extender is added and stirs 10-15min, catalysis is added
Agent and aerosil, stir evenly, discharging, and at a temperature of 105-115 DEG C, vacuum drying curing 4-5h obtains hot melt adhesive.
The hot melt adhesive each component that the present invention prepares cooperates, and has good compatibility, and melt viscosity knotting strength is high,
High temperature resistant and water resistance are good, while effectively reducing shore hardness, promoted flexibility, be suitable for fabric, make each layer of brassiere it
Between adhesion strength it is high, can repeatedly wash without influencing its adhesive property.
The beneficial effects of the present invention are：The present invention is in the double-deck lace layer of cup setting of brassiere, good appearance, two layers of flower bud
Silk layer be bonded in advance, then by the edge of the first lace layer and inner fabric layer suture after along suture reversely turn down after be covered in cup
Surface, so that the suturing part of cup is wrapped in the inside of lace layer, while reinforcing cup edge, it is direct to reduce skin
The suture of contact prevents suturing part and stria to the friction of skin or forms impression, increases wearing comfort sense, and preparation process
Simply；Two layers of lace structure is dislocatedly distributed, and more creates an aesthetic feeling.
Description of the drawings
Invention is described further using attached drawing, but the embodiment in attached drawing does not constitute any limitation of the invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to the following drawings
Its attached drawing.
Fig. 1 is the structural schematic diagram of the double-deck lace surface seamless bra of the invention.
Fig. 2 is the sectional view of cup of the present invention.
Fig. 3 is the dimensional structure diagram of flat seaming machine presser feet of the present invention.
Fig. 4 is another visual angle figure of flat seaming machine presser feet of the present invention.
Reference numeral includes：
1- cup 2- side round part
11- inner fabric layer 12- elastic cotton layers
13- the first lace layer the first folding portions of 131-
14- the second lace layer the second folding portions of 141-
15- suture 21- elastic bands
3- bottom plate 4- connecting seats
5- bends catch 6- perforations road
7- sewing hole 8- guide rails.
Specific implementation mode
The present invention will be further described below with reference to the drawings, sees attached drawing 1-4.
Embodiment 1
As shown in Figs. 1-2, a kind of double-deck lace surface seamless bra, including cup 1 and side round part 2, the cup 1 include by
It is interior to the inner fabric layer 11, elastic cotton layer 12 and lace layer that set gradually outside, lace layer includes the first lace layer 13 and fitting
In 13 positive second lace layer 14 of the first lace layer；It is provided with steel ring between inner fabric layer 11 and elastic cotton layer 12；
First lace layer 13 be provided with cladding inner fabric layer 11 and 12 edge of elastic cotton layer the first folding portion 131, first
Folding portion 131 is anti-by the first lace layer 13 and the suture 15 along the first lace layer 13 after the imbricate suture of inner fabric layer 11
It is formed to folding；
The edge of second lace layer 14 is provided with the second folding portion 141 of the edge fold inward along elastic cotton layer 12, the
Two folding portions 141 are sutured with steel ring；
First lace layer 13 and the second lace layer 14 are bonded by hot melt adhesive.
The double-deck lace layer, good appearance is arranged in the cup 1 of brassiere in the present invention, and two layers of lace layer is bonded in advance, then by
The edge of one lace layer 13 is covered in the surface of cup 1 after suture 15 reversely fold after being sutured with inner fabric layer 11, make seam
15 part of zygonema is completely wrapped in the inside of lace layer, and the suturing part of two layers of lace layer mutually staggers, and is reinforcing 1 side of cup
While edge, reduce the suture 15 that skin is in direct contact and its friction to skin, increases wearing comfort sense.
Further, the elastic cotton layer 12 is upright cotton layer.Further, the first lace layer 13 and second of the invention
The subregion of the dislocation fitting of lace layer 14, the first lace layer 13 and the second lace layer 14 is not overlapped.
It is front that the present invention, which is in the one side far from human body when being worn state with brassiere,.
In the present embodiment, heart is connected between two cups 1, the suture 15 of the first lace layer 13 is located at cover
The upper end of cup and side close to heart, the suture 15 of the second lace layer 14 are located at the lower end of cup and separate heart
Side.Due to the setting of above structure, the stria of the upper end of cup 1 and the side of close heart can be hidden, prevent from dressing
The top and inside of person's chest are formed impression, influence comfort by the friction of suture 15.
As shown in Figure 1, the lower end of the side round part 2 is provided with elastic band 21, the medial surface phase of elastic band 21 and side round part 2
It meets and connects, seam joints are formed in stealthy flat-seam line of 21 surface of elastic band without flat-seam stria.
As shown in Figure 1, the outer surface of the side round part 2 is provided with gusset lace, gusset lace and 14 phase of the second lace layer
Splicing, gusset lace form roses and lace in the lower end of side round part 2, and gusset lace is equipped with lock seaming along the upper end of side round part 2.Due to
The setting of above structure keeps brassiere shape more attractive, and side round part 2 is more durable.
In the present embodiment, the second lace layer 14 is not exclusively coated on the outer surface of the first lace layer 13, makes the first flower bud
The subregion of silk layer 13 displays, and appearance forms the visual double-deck lace layer structure.
The present invention also provides a kind of preparation methods of the double-deck lace surface seamless bra, include the following steps:
The making of cup 1：
（1）The fabric for preparing cup 1 is cut out the size to be suitble to, inner fabric layer 11, steel ring and elastic cotton layer 12 is compound,
It is fixed to preheat pressing, pre- hot pressing temperature is 120 DEG C, pressure 2Pa, time 4s；
（2）After second lace layer 14 and the first lace layer 13 are carried out dislocation bonding using hot melt adhesive, the first lace layer
13 positive edge fits in the inner surface of inner fabric layer 11, waits for that the first lace layer 13 and the imbricate of inner fabric layer 13 stitch
After conjunction, the first lace layer 13 is overturn along suture 15, fits in the front of elastic cotton layer 12；Again by the side of the second lace layer 14
The steel ring suture of edge and cup 1 is fixed；
（3）Inner fabric layer 11, elastic cotton layer 12 and lace layer is hot-forming, and hot pressing temperature is 130 DEG C, pressure 6Pa,
Time is 12s, obtains cup 1；
The making of side round part 2：Side round part 2 is made, elastic band 21 is sutured in the inside of 2 lower end of side round part；
The whole suture of brassiere：The whole suture for carrying out brassiere, obtains the double-deck lace surface seamless bra.
Further, in the making step of the side round part 2, the sewing method of elastic band 21 is：Using flat seaming machine presser feet
Elastic band 21 is turned down, sewing needle is penetrated from 21 middle part of elastic band of 21 fold place of elastic band when suture, passes through 2 inside of side round part
Fabric after be pierced by again from the middle part of the elastic band of 21 fold place of elastic band 21, as Ya Song mechanisms promote fabric, elastic band 21
It is stitched together with fabric, flat-seam line is can't see on the surface of elastic band 21.
The flat seaming machine presser feet that the present embodiment uses is as shown in Figure 3-4, including bottom plate 3 and connecting seat 4, bottom plate 3 at sled shape,
The connection type of bottom plate 3 and connecting seat 4 is identical as traditional flat seaming machine presser feet, and bottom plate 3 is equipped with the flat-seam hole being pierced by for sewing needle,
In the present embodiment, the bottom of bottom plate 3 is provided with guide rail 8, and guide rail 8 slidably connects bending catch 5, bends catch 5 and bottom plate 3
One duct 66 penetrated for elastic band 21 is formed on bottom, and the outlet end in duct 66 is located at the lower section in flat-seam hole, and bending catch 5 can
It is slided along guide rail 8, to adjust the outlet end in duct 66 according to the thickness of elastic band 21 at a distance from flat-seam hole.The present embodiment passes through
In the bottom of bottom plate 3 setting bending catch 5, a duct 66 is formed on bending catch 5 and the bottom of bottom plate 3, and elastic band 21 can be put down
It is whole to pass through the duct 66, return in 180 ° of bendings then along the end of bending catch 5, sewing needle is from elastic band 21 when sewing
Middle part penetrates, then the middle part for the fabric and elastic band 21 for sequentially passing through 2 inside of side round part is returned, and flat-seam line does not appear in elastic
With 21 surface, achievees the purpose that stealthy flat-seam line, flat-seam line is made to be not directly contacted with skin, improve wearing comfort sense.
Wherein, the hot melt adhesive includes the component of following parts by weight：
25 parts of polyadipate -1,4- butyl glycol ester diols
20 parts of phthalic acid diethylene glycol diacrylate
15 parts of polytetrahydrofuran ether glycol
20 parts of methyl diphenylene diisocyanate
5 parts of polydimethylsiloxane
15 parts of chain extender
2 parts of dimethylformamide
2 parts of aerosil
1 part of antioxidant
0.15 part of catalyst.
Further, the weight average molecular weight 2200 of the polyadipate -1,4-butanediol esterdiol, polytetrahydrofuran ether two
The weight average molecular weight 2200 of alcohol.
Further, the chain extender is 1,4-butanediol, makes hot melt adhesive while hardness reduces, and adhesion strength declines
Very little.
Further, the catalyst is stannous octoate, and antioxidant is that mass ratio is 1:The three of 1（2,4- di-t-butyls
Phenyl）Phosphite ester and 3- aryl-benzofuran -2- ketone.
Further, the preparation method of the hot melt adhesive is as follows：
By polyadipate -1,4- butyl glycol ester diols, phthalic acid diethylene glycol diacrylate, PolyTHF
Vacuum dehydration at a temperature of 115 DEG C of ether glycol, polydimethylsiloxane, dimethylformamide and antioxidant, is cooled to 55 DEG C,
Under the protection of nitrogen, 55 DEG C of molten methyl diphenylene diisocyanates are added, are warming up to 90 DEG C, react 120min, until-
When NCO mass fractions reach the 95% of theoretical value, chain extender is added and stirs 12min, catalyst and aerosil is added, stirs
It mixes uniformly, discharging, at a temperature of 110 DEG C, vacuum drying curing 4.5h obtains hot melt adhesive.
The hot melt adhesive each component that the present invention prepares cooperates, and has good compatibility, and melt viscosity knotting strength is high,
High temperature resistant and water resistance are good, while effectively reducing shore hardness, promoted flexibility, be suitable for fabric, make each layer of brassiere it
Between adhesion strength it is high, can repeatedly wash without influencing its adhesive property.
Hot melt adhesive product after bonding the first lace layer 13 and the second lace layer 14, is tested its peel strength by the present invention,
Using D types Shore durometer according to GB/T 2411-2008 standards, its shore hardness is tested.The hot melt adhesive shore of this example
Hardness is 28.4, peel strength 38.8N/2.5cm.
Embodiment 2
A kind of preparation method of double-deck lace surface seamless bra of the present embodiment, includes the following steps:
The making of cup 1：
（1）The fabric for preparing cup 1 is cut out the size to be suitble to, inner fabric layer 11, steel ring and elastic cotton layer 12 is compound,
It is fixed to preheat pressing, pre- hot pressing temperature is 125 DEG C, pressure 1Pa, time 3s；
（2）After second lace layer 14 and the first lace layer 13 are carried out dislocation bonding using hot melt adhesive, the first lace layer
13 positive edge fits in the inner surface of inner fabric layer 11, waits for that the first lace layer 13 and the imbricate of inner fabric layer 13 stitch
After conjunction, the first lace layer 13 is overturn along suture 15, fits in the front of elastic cotton layer 12；Again by the side of the second lace layer 14
The steel ring suture of edge and cup 1 is fixed；
（3）Hot-forming, the hot pressing temperature 135 by the inner fabric layer 11, elastic cotton layer 12 and lace layer of forming cup 1
DEG C, pressure 5Pa, time 10s obtain cup 1；
Further, the elastic cotton layer is spongy layer.
The making of side round part 2：Side round part 2 is made, elastic band 21 is sutured in the inside of 2 lower end of side round part；
The whole suture of brassiere：The whole suture for carrying out brassiere, obtains the double-deck lace surface seamless bra.
Wherein, the hot melt adhesive includes the component of following parts by weight：
30 parts of polyadipate -1,4- butyl glycol ester diols
15 parts of phthalic acid diethylene glycol diacrylate
20 parts of polytetrahydrofuran ether glycol
30 parts of methyl diphenylene diisocyanate
3 parts of polydimethylsiloxane
20 parts of chain extender
3 parts of dimethylformamide
1 part of aerosil
2 parts of antioxidant
0.1 part of catalyst.
In the present embodiment, the weight average molecular weight of the polyadipate -1,4-butanediol esterdiol is 1800, PolyTHF
The weight average molecular weight of ether glycol is 2200.
Further, antioxidant three（2,4- di-tert-butyl-phenyls）Phosphite ester.
Further, the preparation method of the hot melt adhesive is as follows：
By polyadipate -1,4- butyl glycol ester diols, phthalic acid diethylene glycol diacrylate, PolyTHF
Vacuum dehydration at a temperature of 110 DEG C of ether glycol, polydimethylsiloxane, dimethylformamide and antioxidant, is cooled to 50 DEG C,
Under the protection of nitrogen, 50 DEG C of molten methyl diphenylene diisocyanates are added, are warming up to 85 DEG C, react 150min, until-
When NCO mass fractions reach the 95% of theoretical value, chain extender is added and stirs 15min, catalyst and aerosil is added, stirs
It mixes uniformly, discharging, at a temperature of 105 DEG C, vacuum drying curing 5h obtains hot melt adhesive.
The hot melt adhesive shore hardness of this example is 28.1, peel strength 37.9N/2.5cm.
Remaining content of the present embodiment is same as Example 1, and which is not described herein again.
Embodiment 3
A kind of preparation method of double-deck lace surface seamless bra of the present embodiment, includes the following steps:
The making of cup 1：
（1）The fabric for preparing cup 1 is cut out the size to be suitble to, inner fabric layer 11, steel ring and elastic cotton layer 12 is compound,
It is fixed to preheat pressing, pre- hot pressing temperature is 122 DEG C, pressure 1.5Pa, time 3s；
（2）After second lace layer 14 and the first lace layer 13 are carried out dislocation bonding using hot melt adhesive, the first lace layer
13 positive edge fits in the inner surface of inner fabric layer 11, waits for that the first lace layer 13 and the imbricate of inner fabric layer 13 stitch
After conjunction, the first lace layer 13 is overturn along suture 15, fits in the front of elastic cotton layer 12；Again by the side of the second lace layer 14
The steel ring suture of edge and cup 1 is fixed；
（3）Hot-forming, the hot pressing temperature 133 by the inner fabric layer 11, elastic cotton layer 12 and lace layer of forming cup 1
DEG C, pressure 5.5Pa, time 11s obtain cup 1；
The making of side round part 2：Side round part 2 is made, elastic band 21 is sutured in the inside of 2 lower end of side round part；
The whole suture of brassiere：The whole suture for carrying out brassiere, obtains the double-deck lace surface seamless bra.
Wherein, the hot melt adhesive includes the component of following parts by weight：
20 parts of polyadipate -1,4- butyl glycol ester diols
25 parts of phthalic acid diethylene glycol diacrylate
10 parts of polytetrahydrofuran ether glycol
10 parts of methyl diphenylene diisocyanate
8 parts of polydimethylsiloxane
10 parts of chain extender
1 part of dimethylformamide
3 parts of aerosil
0.5 part of antioxidant
0.2 part of catalyst.
In the present embodiment, the weight average molecular weight of the polyadipate -1,4-butanediol esterdiol is 2200, PolyTHF
The weight average molecular weight of ether glycol is 1800.
Further, the catalyst is stannous octoate, and antioxidant is that mass ratio is 1:The three of 1（2,4- di-t-butyls
Phenyl）Phosphite ester and 3- aryl-benzofuran -2- ketone.
Further, the preparation method of the hot melt adhesive is as follows：
By polyadipate -1,4- butyl glycol ester diols, phthalic acid diethylene glycol diacrylate, PolyTHF
Vacuum dehydration at a temperature of 120 DEG C of ether glycol, polydimethylsiloxane, dimethylformamide and antioxidant, is cooled to 60 DEG C,
Under the protection of nitrogen, 60 DEG C of molten methyl diphenylene diisocyanates are added, are warming up to 95 DEG C, react 150min, until-
When NCO mass fractions reach the 95% of theoretical value, chain extender is added and stirs 10min, catalyst and aerosil is added, stirs
It mixes uniformly, discharging, at a temperature of 115 DEG C, vacuum drying curing 4h obtains hot melt adhesive.
The hot melt adhesive shore hardness of this example is 29.2, peel strength 37.4N/2.5cm.
Remaining content of the present embodiment is same as Example 1, and which is not described herein again.
Embodiment 4
A kind of preparation method of double-deck lace surface seamless bra of the present embodiment, includes the following steps:
The making of cup 1：
（1）The fabric for preparing cup 1 is cut out the size to be suitble to, inner fabric layer 11, steel ring and elastic cotton layer 12 is compound,
It is fixed to preheat pressing, pre- hot pressing temperature is 122 DEG C, pressure 1.5Pa, time 3s；
（2）After second lace layer 14 and the first lace layer 13 are carried out dislocation bonding using hot melt adhesive, the first lace layer
13 positive edge fits in the inner surface of inner fabric layer 11, waits for that the first lace layer 13 and the imbricate of inner fabric layer 13 stitch
After conjunction, the first lace layer 13 is overturn along suture 15, fits in the front of elastic cotton layer 12；Again by the side of the second lace layer 14
The steel ring suture of edge and cup 1 is fixed；
（3）Inner fabric layer 11, elastic cotton layer 12 and lace layer is hot-forming, and hot pressing temperature is 133 DEG C, and pressure is
5.5Pa, time 11s obtain cup 1；
The making of side round part 2：Side round part 2 is made, elastic band 21 is sutured in the inside of 2 lower end of side round part；
The whole suture of brassiere：The whole suture for carrying out brassiere, obtains the double-deck lace surface seamless bra.
Wherein, the hot melt adhesive includes the component of following parts by weight：
25 parts of polyadipate -1,4- butyl glycol ester diols
15 parts of phthalic acid diethylene glycol diacrylate
18 parts of polytetrahydrofuran ether glycol
15 parts of methyl diphenylene diisocyanate
6 parts of polydimethylsiloxane
12 parts of chain extender
2 parts of dimethylformamide
2.5 parts of aerosil
1.5 parts of antioxidant
0.16 part of catalyst.
In the present embodiment, the weight average molecular weight of the polyadipate -1,4-butanediol esterdiol is 2100, PolyTHF
The weight average molecular weight of ether glycol is 2100.
Further, the catalyst is stannous octoate, and antioxidant is 3- aryl-benzofuran -2- ketone.
Further, the preparation method of the hot melt adhesive is as follows：
By polyadipate -1,4- butyl glycol ester diols, phthalic acid diethylene glycol diacrylate, PolyTHF
Vacuum dehydration at a temperature of 118 DEG C of ether glycol, polydimethylsiloxane, dimethylformamide and antioxidant, is cooled to 58 DEG C,
Under the protection of nitrogen, 55 DEG C of molten methyl diphenylene diisocyanates are added, are warming up to 88 DEG C, react 135min, until-
When NCO mass fractions reach the 95% of theoretical value, chain extender is added and stirs 13min, catalyst and aerosil is added, stirs
It mixes uniformly, discharging, at a temperature of 112 DEG C, vacuum drying curing 4h obtains hot melt adhesive.
The hot melt adhesive shore hardness of this example is 28.2, peel strength 36.7N/2.5cm.
Remaining content of the present embodiment is same as Example 1, and which is not described herein again.
Embodiment 5
A kind of preparation method of double-deck lace surface seamless bra of the present embodiment, includes the following steps:
The making of cup 1：
（1）The fabric for preparing cup 1 is cut out the size to be suitble to, inner fabric layer 11, steel ring and elastic cotton layer 12 is compound,
It is fixed to preheat pressing, pre- hot pressing temperature is 122 DEG C, pressure 1.5Pa, time 3s；
（2）After second lace layer 14 and the first lace layer 13 are carried out dislocation bonding using hot melt adhesive, the first lace layer
13 positive edge fits in the inner surface of inner fabric layer 11, waits for that the first lace layer 13 and the imbricate of inner fabric layer 13 stitch
After conjunction, the first lace layer 13 is overturn along suture 15, fits in the front of elastic cotton layer 12；Again by the side of the second lace layer 14
The steel ring suture of edge and cup 1 is fixed；
（3）Hot-forming, the hot pressing temperature 133 by the inner fabric layer 11, elastic cotton layer 12 and lace layer of forming cup 1
DEG C, pressure 5.5Pa, time 11s obtain cup 1；
The making of side round part 2：Side round part 2 is made, elastic band 21 is sutured in the inside of 2 lower end of side round part；
The whole suture of brassiere：The whole suture for carrying out brassiere, obtains the double-deck lace surface seamless bra.
Wherein, the hot melt adhesive includes the component of following parts by weight：
Wherein, the hot melt adhesive includes the component of following parts by weight：
20 parts of polyadipate -1,4- butyl glycol ester diols
20 parts of phthalic acid diethylene glycol diacrylate
15 parts of polytetrahydrofuran ether glycol
20 parts of methyl diphenylene diisocyanate
6 parts of polydimethylsiloxane
15 parts of chain extender
1 part of dimethylformamide
2 parts of aerosil
1 part of antioxidant
0.18 part of catalyst.
In the present embodiment, the weight average molecular weight of the polyadipate -1,4-butanediol esterdiol is 1900, PolyTHF
The weight average molecular weight of ether glycol is 2100.
Further, the catalyst is stannous octoate, and antioxidant is that mass ratio is 1:The three of 1（2,4- di-t-butyls
Phenyl）Phosphite ester.
Further, the preparation method of the hot melt adhesive is as follows：
By polyadipate -1,4- butyl glycol ester diols, phthalic acid diethylene glycol diacrylate, PolyTHF
Vacuum dehydration at a temperature of 115 DEG C of ether glycol, polydimethylsiloxane, dimethylformamide and antioxidant, is cooled to 52 DEG C,
Under the protection of nitrogen, 52 DEG C of molten methyl diphenylene diisocyanates are added, are warming up to 92 DEG C, react 120min, until-
When NCO mass fractions reach the 95% of theoretical value, chain extender is added and stirs 14min, catalyst and aerosil is added, stirs
It mixes uniformly, discharging, at a temperature of 108 DEG C, vacuum drying curing 5h obtains hot melt adhesive.
The hot melt adhesive shore hardness of this example is 28.8, peel strength 37.3N/2.5cm.
Remaining content of the present embodiment is same as Example 1, and which is not described herein again.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although being explained in detail to the present invention with reference to preferred embodiment, those skilled in the art answer
Work as understanding, technical scheme of the present invention can be modified or replaced equivalently, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (4)
1. a kind of preparation method of bilayer lace surface seamless bra, it is characterised in that：Include the following steps：
The making of cup：
(1) fabric for preparing cup is cut out as suitable size, inner fabric layer, steel ring and elastic cotton layer is compound, preheating pressing
It is fixed；The inner fabric layer and elastic cotton layer are set gradually from the inside to the outside, and steel ring is set between precoat and elastic cotton layer；
(2) after the second lace layer and the first lace layer being carried out dislocation bonding using hot melt adhesive, the positive of the first lace layer
Edge fits in the inner surface of inner fabric layer, after the suture of the imbricate of the first lace layer and inner fabric layer, by the first lace
Layer is overturn along suture, fits in the front of elastic cotton layer；The steel ring of the edge of the second lace layer and cup is sutured again and is fixed；
The second lace layer fits in the first lace layer front；The second lace layer is not exclusively coated on the first lace layer；
(3) inner fabric layer, elastic cotton layer and lace layer is hot-forming, obtain cup；
The making of side round part：Side round part is made, elastic band is sutured in the inside of side round part lower end；
The whole suture of brassiere：The whole suture for carrying out brassiere, obtains the double-deck lace surface seamless bra；
In the making step of the side round part, the sewing method of elastic band is：
Elastic band is turned down, sewing needle penetrates in the middle part of the elastic band of elastic band fold place when suture, passes through on the inside of side round part
It is pierced by the middle part of the elastic band of elastic band fold place again after fabric, as Ya Song mechanisms promote fabric, elastic band is stitched with fabric
It is combined, flat-seam line is can't see on the surface of elastic band；
The hot melt adhesive is grouped as by the group of following parts by weight：
2. a kind of preparation method of double-deck lace surface seamless bra according to claim 1, it is characterised in that：It is described to gather oneself
The weight average molecular weight of diacid -1,4-butanediol esterdiol is 1800-2200, and the weight average molecular weight of polytetrahydrofuran ether glycol is
1800-2200。
3. a kind of preparation method of double-deck lace surface seamless bra according to claim 1, it is characterised in that：The chain extension
Agent is 1,4-butanediol.
4. a kind of preparation method of double-deck lace surface seamless bra according to claim 1, it is characterised in that：The hot melt
The preparation method of glue is as follows：
By polyadipate -1,4-butanediol esterdiol, phthalic acid diethylene glycol diacrylate, polytetrahydrofuran ether two
Vacuum dehydration at a temperature of 110-120 DEG C of alcohol, polydimethylsiloxane, dimethylformamide and antioxidant, is cooled to 50-60
DEG C, under the protection of nitrogen, 50-60 DEG C of molten methyl diphenylene diisocyanate is added, is warming up to 85-95 DEG C, reaction
100-150min is added chain extender and stirs 10-15min, catalyst is added until when-NCO mass fractions reach the 95% of theoretical value
And aerosil, it stirs evenly, discharges, at a temperature of 105-115 DEG C, vacuum drying curing 4-5h obtains hot melt adhesive.
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| CN201610325215.XA CN105942595B (en) | 2016-05-16 | 2016-05-16 | A kind of bilayer lace surface seamless bra and preparation method thereof |
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| CN107048496A (en) * | 2017-03-22 | 2017-08-18 | 佛山市仰慕服饰有限公司 | A kind of production method of bra cup |
| CN111657565A (en) * | 2020-07-10 | 2020-09-15 | 陈贤浩 | 3D soft supporting underwear |
| CN113480705A (en) * | 2021-08-23 | 2021-10-08 | 安徽美世嘉新材料有限公司 | Ultralow-temperature underwear compression molding cotton and preparation method thereof |
| CN114190654A (en) * | 2021-11-15 | 2022-03-18 | 广东恩浩内衣实业有限公司 | Hot press forming process for shoe back upper |
| CN114504167A (en) * | 2022-01-24 | 2022-05-17 | 广东恩浩内衣实业有限公司 | Hot-pressing and reverse-wrapping forming process for shoe back upper and shoe back upper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2724444Y (en) * | 2004-08-30 | 2005-09-14 | 高宝玮 | Adhering type brassiere with laces |
| JP2006288518A (en) * | 2005-04-07 | 2006-10-26 | Morimoto Mfg Co Ltd | Rubber tape sewing machine |
| WO2007122673A1 (en) * | 2006-04-12 | 2007-11-01 | Takeda Lace Co., Ltd. | Warp knitted lace fabric for brassiere |
| CN201403504Y (en) * | 2009-02-24 | 2010-02-17 | 康孝钲 | Sandwich cup structure |
| TWM396623U (en) * | 2010-07-02 | 2011-01-21 | xiu-hua Fu | One-piece embroidered lace trim-line-free structure of bra |
| CN102115658B (en) * | 2010-12-31 | 2013-03-27 | 广州鹿山新材料股份有限公司 | Copolyester hot melt adhesive and preparation method thereof |
| CN202504196U (en) * | 2012-02-29 | 2012-10-31 | 张汉平 | Self-adhesion type cloth bra |
| CN102845846B (en) * | 2012-09-29 | 2014-06-25 | 安莉芳（中国）服装有限公司 | Brassiere cup with outer layer shell fabric and preparation process of brassiere cup |
| CN102977838B (en) * | 2012-12-22 | 2016-03-16 | 昆山天洋热熔胶有限公司 | A kind of lining cloth moisture-curable polyurethane hot melt adhesive and preparation method thereof |
| CN204146356U (en) * | 2014-10-16 | 2015-02-11 | 婷美集团康美婷科技发展(北京)有限公司 | Novel 3810 formula brassieres |
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Denomination of invention: A double-layer lace surface seamless bra and its preparation method Effective date of registration: 20230227 Granted publication date: 20181106 Pledgee: Shantou Branch of China Construction Bank Co.,Ltd. Pledgor: HONGJI UNDERWEAR Co.,Ltd. Registration number: Y2023980033279 |
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