CN105942595A - Dual-lace-face non-trace brassiere and manufacturing method thereof - Google Patents
Dual-lace-face non-trace brassiere and manufacturing method thereof Download PDFInfo
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- CN105942595A CN105942595A CN201610325215.XA CN201610325215A CN105942595A CN 105942595 A CN105942595 A CN 105942595A CN 201610325215 A CN201610325215 A CN 201610325215A CN 105942595 A CN105942595 A CN 105942595A
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—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 invention relates to the technical field of brassieres, in particular to a dual-lace-face non-trace brassiere. The brassiere comprises cups and side enclosing parts, wherein each of the cups comprises an inner fabric layer, an elastic cotton layer and a lace layer which are sequentially arranged from inside to outside; and each of the lace layers includes a first lace layer and a second lace layer which is attached to the front side of the first lace layer. According to brassiere disclosed by the invention, with the arrangement of the two lace layers on each of the cups, the brassiere is beautiful in appearance; the two lace layers are attached in advance, then the edge of the first lace layer is seamed with the inner fabric layer of each of the cups and the first lace layer, after being turned in a reverse direction along seaming threads, covers the surface of the cup, so that a seaming part of the cup is covered in the lace layer; therefore, the edges of the cups are strengthened, the seaming threads, which get into direct contact with skin, are reduced, friction or formation of impresses on the skin caused by the seaming parts and thread traces are prevented, and subsequently, wearing comfort is improved; the brassiere is simple in manufacturing process; and since the two lace layers are distributed in a staggered, the aesthetic sense of the brassiere is enhanced.
Description
Technical field
The present invention relates to bra technical field, particularly relate to a kind of double-deck lace surface seamless bra and preparation method thereof.
Background technology
Bra is women for protecting breast and moulding the underclothes of good breast type, along with growth in the living standard, beautiful
See the comfortable target pursued when becoming vast being worn by women.Lace embodies women for bra aesthetics with the combination of bra
High request, lace bra has obscuration aesthetic sense because of it, can represent woman charm and is increasingly subject to favor.
When existing lace bra makes, conjunction of often being met in the edge of lace Yu cup fabric, cup edge in sewing process
Surfaces externally and internally be respectively provided with and significantly sew up stria, affect the aesthetics of bra, the stria of inner surface directly connects with skin simultaneously
Touching, stitching stria and the end of a thread stretched out easily are pressed in skin surface and form impression when wearing, and stimulate skin, have impact on wearing and relax
Appropriateness.
Summary of the invention
The technical problem to be solved is to provide a kind of good looking appearance, wearing comfort, sews up stria and is hidden in cover
Double-deck lace surface seamless bra within Bei and preparation method thereof.
For achieving the above object, the technical solution used in the present invention is as follows.
A kind of double-deck lace surface seamless bra, including cup and side round part, described cup includes 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 of the first lace layer front
Two lace layers;It is provided with steel ring between inner fabric layer and elastic cotton layer;
First lace layer is provided with cladding inner fabric layer and first folding portion at elastic cotton layer edge, and the first folding portion is by the first flower bud
The imbricate of silk layer and inner fabric layer sews up the folded inverted formation of stitching thread of tailing edge the first lace layer, the seam of the first lace layer
Zygonema is positioned at inner fabric layer;
The edge of the second lace layer is provided with the second folding portion of the edge fold inward along elastic cotton layer, the second folding portion and steel
Circle is sewed up;
First lace layer and the second lace layer are bondd by PUR.
The present invention arranges double-deck lace layer, good looking appearance at the cup of bra, and two-layer lace layer is fitted in advance, then by first
The edge of lace layer and inner fabric layer sew up the surface being covered in cup after tailing edge stitching thread reversely turns down, and make suture portion quilt
Fully wrapped around in the inside of lace layer, and the suturing part of two-layer lace layer mutually staggers, and while reinforcing cup edge, reduces
The stitching thread that skin directly contacts and the friction to skin thereof, increase wearing comfort sense.
Wherein, described elastic cotton layer is upright surface layer or spongy layer.
Wherein, the lower end of described side round part is provided with elastic cord, and elastic cord sews up mutually with the medial surface of side round part, sews up place
It is formed at the elastic cord surface stealthy flat-seam line without flat-seam stria.Elastic cord surface, without flat-seam stria, can prevent flat-seam line at flesh
Skin surface forms impression, stimulates skin, affects wearing comfort degree.
Wherein, the outer surface of described side round part is provided with gusset lace, gusset lace and the second lace layer and splices mutually, gusset
Lace forms roses and lace in the lower end of side round part, and gusset lace is provided with lock seaming along the upper end of side round part.Due to said structure
Arranging, make bra profile more attractive, side round part is the most durable.
Wherein, described 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 outward appearance forms visual double-deck lace Rotating fields, adds mysterious dim aesthetic feeling, makes the second lace layer only
The subregion having its edge is sewed up with inner fabric layer, and the Hot melt adhesive plaster appearance together in the first lace layer is passed through in major part region
Face, decreases the stitching thread on surface, adds aesthetic feeling and wearing comfort degree.
The present invention also provides for the preparation method of a kind of double-deck lace surface seamless bra, comprises the following steps:
The making of cup:
(1) fabric preparing cup being cut out the size for being suitable for, inner fabric layer, steel ring and elastic cotton layer are combined, preheating presses solidly
Fixed, pre-hot pressing temperature is 120-125 DEG C, and pressure is 1-2Pa, and the time is 3-4s;
(2) after using PUR to carry out dislocation bonding on the second lace layer and the first lace layer, the front of the first lace layer
Edge fits in the inner surface of inner fabric layer, after the imbricate of the first lace layer with inner fabric layer is sewed up, by the first lace
Layer overturns along stitching thread, fits in the front of elastic cotton layer;Again the edge of the second lace layer is sewed up fixing with the steel ring of cup;
(3) by hot-forming to inner fabric layer, elastic cotton layer and lace layer, hot pressing temperature is 130-135 DEG C, and pressure is 5-6Pa, time
Between be 10-12s, obtain cup;
The making of side round part: make side round part, sews up elastic cord in the inner side of side round part lower end;
The overall stitching of bra: carry out the overall stitching of bra, obtain double-deck lace surface seamless bra
Further, in the making step of described side round part, the sewing method of elastic cord is: use flat seaming machine presser feet by degree of tightness
Band turn down, penetrate in the middle part of sewing needle elastic cord at elastic cord turnover during stitching, after the fabric inside side round part again from
Passing in the middle part of elastic cord at elastic cord turnover, along with fabric is advanced by Ya Song mechanism, elastic cord is stitched together with fabric, pine
Flat-seam line is can't see on the surface of taut band.
Wherein, described PUR includes the component of following weight portion:
Polyadipate-1,4-butanediol ester glycol 20-30 part
PDDA 15-25 part
PTMG 10-20 part
Methyl diphenylene diisocyanate 10-30 part
Polydimethylsiloxane 3-8 part
Chain extender 10-20 part
Dimethylformamide 1-3 part
Aerosil 1-3 part
Antioxidant 0.5-2 part
Catalyst 0.1-0.2 part.
Bra fabric be mainly composed of fiber, containing ester bond, ehter bond, amido link isopolarity key in fiber, and hydroxyl
With carboxyl etc., hygroscopicity is relatively strong, and dimethylformamide can make the polar group in fiber expand, and drops low-fiber degree of crystallinity, promote-
OH group reacts with-the NCO of PUR, and the cross-linked structure compound of generation can be formed intermolecular with the polar bond in fiber
Gravitation, increases adhesion strength.
The phenyl ring of PDDA has stronger rigidity, is provided that stronger stripping is strong
Degree, phenyl ring steric effect makes crystallinity be substantially reduced.PTMG is the linear polyether two of a kind of end primary hydroxyl
Alcohol, is formed by tetrahydrofuran ring opening polymerization, can give the good resistance to low temperature of PUR, wear-resisting, ageing-resistant, hydrolytic resistance
Can, improve its pliability.
The polyurethane compositions of PUR can be modified by polydimethylsiloxane, makes the silica chain of polyurethane to material surface
Migrate and enrichment, change the surface tension of polyurethane, increase its hydrophobicity, effectively promote the water resistance of PUR, make literary composition
Breast can repeatedly be washed and not affect its adhesive property.
Gas phase nano silicon dioxide has more surface micropore, has that specific surface area is big and the adsorbed hydroxyl content height etc. is excellent
Point, good with other organic principle compatibilitys in PUR, can be dispersed in PUR system, improve the heat-resisting of PUR
Property, resistance to water and adhesion strength.
Further, the weight average molecular weight of described polyadipate-BDO esterdiol is 1800-2200, poly-tetrahydrochysene
The weight average molecular weight of furan ether glycol is 1800-2200.Polyadipate-BDO esterdiol along with the increase of molecular weight,
Intermolecular active force increases, and the crystallinity of segment strengthens, and the adhesion strength of PUR also increases;PTMG two
Alcohol increases along with relative molecular mass, and intermolecular ehter bond quantity increases, and segment becomes soft therewith, but adhesion strength reduces, this
Invent and use polyadipate-BDO esterdiol and PTMG to compound, make poly-the having concurrently of PUR bond by force
The advantage that degree is high and flexibility is good.
Further, described chain extender is BDO, makes PUR while hardness reduces, and adhesion strength declines
The least.
Further, described catalyst is stannous octoate, and antioxidant is three (2,4-di-tert-butyl-phenyl) phosphite ester
With at least one of 3-aryl-benzofuran-2-ketone.
Further, the preparation method of described PUR is as follows:
By polyadipate-1,4-butanediol ester glycol, PDDA, PTMG two
The 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, add 50-60 DEG C of molten methyl diphenylene diisocyanate, be warming up to 85-95 DEG C, reaction
100-150min, when reaching the 95% of theoretical value to-NCO mass fraction, adds chain extender stirring 10-15min, adds catalyst
And aerosil, stir, discharging, at a temperature of 105-115 DEG C, it is vacuum dried ripening 4-5h, obtains PUR.
The each component of PUR that the present invention prepares cooperates, and has the good compatibility, and melt viscosity knotting strength is high,
High temperature resistant and water resistance is good, effectively reduces shore hardness simultaneously, promotes flexibility, it is adaptable to fabric, make each layer of bra it
Between adhesion strength high, can repeatedly wash and not affect its adhesive property.
The beneficial effects of the present invention is: the present invention arranges double-deck lace layer, good looking appearance, two-layer flower bud at the cup of bra
Silk layer is fitted in advance, then the edge of the first lace layer and inner fabric layer is sewed up after tailing edge stitching thread reversely turns down and be covered in cup
Surface, make the suturing part of cup be wrapped in the inside of lace layer, reinforcing while cup edge, decreasing skin direct
The stitching thread of contact, prevents suturing part and stria to the friction of skin or forming impression, increases wearing comfort sense, and preparation technology
Simply;Two-layer lace structure is dislocatedly distributed, and more creates an aesthetic feeling.
Accompanying drawing explanation
Utilize accompanying drawing that invention is described further, but the embodiment in accompanying drawing do not constitute any limitation of the invention,
For those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain it according to the following drawings
Its accompanying drawing.
Fig. 1 is the structural representation of bilayer lace surface seamless bra of the present invention.
Fig. 2 is the profile of cup of the present invention.
Fig. 3 is the perspective view 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 includes:
1-cup 2-side round part
11-inner fabric layer 12-elastic cotton layer
13-the first lace layer 131-the first folding portion
14-the second lace layer 141-the second folding portion
15-stitching thread 21-elastic cord
3-base plate 4-connects seat
5-bends catch 6-perforation road
7-sewing hole 8-guide rail.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings, sees accompanying drawing 1-4.
Embodiment 1
As shown in Figure 1-2, a kind of double-deck lace surface seamless bra, including cup 1 and side round part 2, described cup 1 include by interior extremely
Inner fabric layer 11, elastic cotton layer 12 and the lace layer set gradually outward, lace layer includes the first lace layer 13 and fits in
The second lace layer 14 in one lace layer 13 front;It is provided with steel ring between inner fabric layer 11 and elastic cotton layer 12;
First lace layer 13 is provided with cladding inner fabric layer 11 and first folding portion 131 at elastic cotton layer 12 edge, the first turnover
The stitching thread 15 that tailing edge the first lace layer 13 is sewed up by the imbricate of the first lace layer 13 with inner fabric layer 11 by portion 131 is reversely rolled over
Folded formation;
The edge of the second lace layer 14 is provided with the second folding portion 141 of the edge fold inward along elastic cotton layer 12, and second turns over
Folding part 141 is sewed up with steel ring;
First lace layer 13 and the second lace layer 14 are bondd by PUR.
The present invention arranges double-deck lace layer, good looking appearance at the cup 1 of bra, and two-layer lace layer is fitted in advance, then by the
The edge of one lace layer 13 and inner fabric layer 11 sew up the surface being covered in cup 1 after tailing edge stitching thread 15 reversely turns down, and make seam
Zygonema 15 part is completely wrapped in the inside of lace layer, and the suturing part of two-layer lace layer mutually staggers, and is reinforcing cup 1 limit
While edge, decrease stitching thread 15 that skin directly contacts and the friction to skin thereof, increase wearing comfort sense.
Further, described elastic cotton layer 12 is upright cotton layer.Further, the first lace layer 13 and second of the present invention
Lace layer 14 dislocation laminating, the subregion of the first lace layer 13 and the second lace layer 14 is the most overlapping.
The present invention is in bra when being worn state away from the one side of human body as front.
In the present embodiment, connect between two cups 1 and have Cor Gigeriae Galli, the stitching thread 15 of described first lace layer 13 to be positioned at cover
The upper end of cup and the side of close Cor Gigeriae Galli, the stitching thread 15 of the second lace layer 14 is positioned at the bottom of cup and away from Cor Gigeriae Galli
Side.Due to the setting of said structure, can hide by the stria by the upper end of cup 1 and near the side of Cor Gigeriae Galli, prevent from dressing
The top of person's chest and inner side, by the friction of stitching thread 15, form impression, affect comfort.
As it is shown in figure 1, the lower end of described side round part 2 is provided with elastic cord 21, the medial surface phase of elastic cord 21 and side round part 2
Meeting and connect, the place of sewing up is formed at the elastic cord 21 surface stealthy flat-seam line without flat-seam stria.
As it is shown in figure 1, the outer surface of described side round part 2 is provided with gusset lace, gusset lace and the second lace layer 14 phase
Splicing, gusset lace forms roses and lace in the lower end of side round part 2, and gusset lace is provided with lock seaming along the upper end of side round part 2.Due to
The setting of said structure, makes bra profile more attractive, and side round part 2 is the most durable.
In the present embodiment, described 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 outward appearance forms visual double-deck lace Rotating fields.
The present invention also provides for the preparation method of a kind of double-deck lace surface seamless bra, comprises the following steps:
The making of cup 1:
(1) fabric preparing cup 1 is cut out the size for being suitable for, inner fabric layer 11, steel ring and elastic cotton layer 12 are combined, preheating
It is fixed to press solidly, and pre-hot pressing temperature is 120 DEG C, and pressure is 2Pa, and the time is 4s;
(2) after using PUR to carry out dislocation bonding on the second lace layer 14 and the first lace layer 13, the first lace layer 13
The edge in front fits in the inner surface of inner fabric layer 11, treats the imbricate stitching of the first lace layer 13 and inner fabric layer 13
After, the first lace layer 13 is overturn along stitching thread 15, fits in the front of elastic cotton layer 12;Again by the edge of the second lace layer 14
Sew up fixing with the steel ring of cup 1;
(3) by hot-forming to inner fabric layer 11, elastic cotton layer 12 and lace layer, hot pressing temperature is 130 DEG C, and pressure is 6Pa, the time
For 12s, obtain cup 1;
The making of side round part 2: make side round part 2, sews up elastic cord 21 in the inner side of side round part 2 lower end;
The overall stitching of bra: carry out the overall stitching of bra, obtain double-deck lace surface seamless bra.
Further, in the making step of described side round part 2, the sewing method of elastic cord 21 is: use flat seaming machine presser feet
Elastic cord 21 is turned down, penetrates, inside side round part 2 in the middle part of sewing needle elastic cord 21 at elastic cord 21 turnover during stitching
Fabric after pass in the middle part of elastic cord 21 at elastic cord 21 turnover again, along with fabric is advanced by Ya Song mechanism, elastic cord 21
Being stitched together with fabric, flat-seam line is can't see on the surface of elastic cord 21.
As shown in Figure 3-4, including base plate 3 and connection seat 4, base plate 3 becomes sled shape to the flat seaming machine presser feet that the present embodiment uses,
Base plate 3 is identical with traditional flat seaming machine presser feet with the connected mode connecting seat 4, and base plate 3 is provided with the flat-seam hole passed for sewing needle,
In the present embodiment, the bottom of base plate 3 is provided with guide rail 8, and guide rail 8 slidably connects bending catch 5, bending catch 5 and base plate 3
Bottom forms one and is available for the duct 66 that elastic cord 21 penetrates, and the port of export in duct 66 is positioned at the lower section in flat-seam hole, and bending catch 5 can
Slide along guide rail 8, adjust the port of export in duct 66 and the distance in flat-seam hole with the thickness according to elastic cord 21.The present embodiment passes through
Arrange bending catch 5 in the bottom of base plate 3, bending catch 5 forms a duct 66 with the bottom of base plate 3, and elastic cord 21 can be put down
Whole through this duct 66, the end then along bending catch 5 is that 180 ° of bendings are returned, and during sewing, sewing needle is from elastic cord 21
Middle part penetrates, then returns in the middle part sequentially passing through the fabric inside side round part 2 and elastic cord 21, and flat-seam line does not appears in degree of tightness
With the surface of 21, reach the purpose of stealthy flat-seam line, make flat-seam line be not directly contacted with skin, improve wearing comfort sense.
Wherein, described PUR includes the component of following weight portion:
Polyadipate-1,4-butanediol ester glycol 25 parts
PDDA 20 parts
PTMG 15 parts
Methyl diphenylene diisocyanate 20 parts
Polydimethylsiloxane 5 parts
Chain extender 15 parts
Dimethylformamide 2 parts
Aerosil 2 parts
Antioxidant 1 part
Catalyst 0.15 part.
Further, the weight average molecular weight 2200 of described polyadipate-BDO esterdiol, PTMG two
The weight average molecular weight 2200 of alcohol.
Further, described chain extender is BDO, makes PUR while hardness reduces, and adhesion strength declines
The least.
Further, described catalyst is stannous octoate, antioxidant be mass ratio be three (2, the 4-di-t-butyls of 1:1
Phenyl) phosphite ester and 3-aryl-benzofuran-2-ketone.
Further, the preparation method of described PUR is as follows:
By polyadipate-1,4-butanediol ester glycol, PDDA, PTMG two
The vacuum dehydration at a temperature of 115 DEG C of alcohol, polydimethylsiloxane, dimethylformamide and antioxidant, is cooled to 55 DEG C, at nitrogen
Protection under, add 55 DEG C of molten methyl diphenylene diisocyanates, be warming up to 90 DEG C, react 120min, to-NCO matter
When amount mark reaches the 95% of theoretical value, adding chain extender stirring 12min, add catalyst and aerosil, stirring is all
Even, discharging, at a temperature of 110 DEG C, it is vacuum dried ripening 4.5h, obtains PUR.
The each component of PUR that the present invention prepares cooperates, and has the good compatibility, and melt viscosity knotting strength is high,
High temperature resistant and water resistance is good, effectively reduces shore hardness simultaneously, promotes flexibility, it is adaptable to fabric, make each layer of bra it
Between adhesion strength high, can repeatedly wash and not affect its adhesive property.
PUR product after bonding the first lace layer 13 and the second lace layer 14, is tested its peel strength by the present invention,
Use D type Shore durometer according to GB/T 2411-2008 standard, test its shore hardness.The PUR shore of this example
Hardness is 28.4, and peel strength is 38.8N/2.5cm.
Embodiment 2
The preparation method of a kind of double-deck lace surface seamless bra of the present embodiment, comprises the following steps:
The making of cup 1:
(1) fabric preparing cup 1 is cut out the size for being suitable for, inner fabric layer 11, steel ring and elastic cotton layer 12 are combined, preheating
It is fixed to press solidly, and pre-hot pressing temperature is 125 DEG C, and pressure is 1Pa, and the time is 3s;
(2) after using PUR to carry out dislocation bonding on the second lace layer 14 and the first lace layer 13, the first lace layer 13
The edge in front fits in the inner surface of inner fabric layer 11, treats the imbricate stitching of the first lace layer 13 and inner fabric layer 13
After, the first lace layer 13 is overturn along stitching thread 15, fits in the front of elastic cotton layer 12;Again by the edge of the second lace layer 14
Sew up fixing with the steel ring of cup 1;
(3) by hot-forming to the composition inner fabric layer 11 of cup 1, elastic cotton layer 12 and lace layer, hot pressing temperature is 135 DEG C, pressure
Power is 5Pa, and the time is 10s, obtains cup 1;
Further, described elastic cotton layer is spongy layer.
The making of side round part 2: make side round part 2, sews up elastic cord 21 in the inner side of side round part 2 lower end;
The overall stitching of bra: carry out the overall stitching of bra, obtain double-deck lace surface seamless bra.
Wherein, described PUR includes the component of following weight portion:
Polyadipate-1,4-butanediol ester glycol 30 parts
PDDA 15 parts
PTMG 20 parts
Methyl diphenylene diisocyanate 30 parts
Polydimethylsiloxane 3 parts
Chain extender 20 parts
Dimethylformamide 3 parts
Aerosil 1 part
Antioxidant 2 parts
Catalyst 0.1 part.
In the present embodiment, the weight average molecular weight of described polyadipate-BDO esterdiol is 1800, PolyTHF
The weight average molecular weight of ether glycol is 2200.
Further, antioxidant is three (2,4-di-tert-butyl-phenyl) phosphite ester.
Further, the preparation method of described PUR is as follows:
By polyadipate-1,4-butanediol ester glycol, PDDA, PTMG two
The vacuum dehydration at a temperature of 110 DEG C of alcohol, polydimethylsiloxane, dimethylformamide and antioxidant, is cooled to 50 DEG C, at nitrogen
Protection under, add 50 DEG C of molten methyl diphenylene diisocyanates, be warming up to 85 DEG C, react 150min, to-NCO matter
When amount mark reaches the 95% of theoretical value, adding chain extender stirring 15min, add catalyst and aerosil, stirring is all
Even, discharging, at a temperature of 105 DEG C, it is vacuum dried ripening 5h, obtains PUR.
The PUR shore hardness of this example is 28.1, and peel strength is 37.9N/2.5cm.
Remaining content of the present embodiment is same as in Example 1, repeats no more here.
Embodiment 3
The preparation method of a kind of double-deck lace surface seamless bra of the present embodiment, comprises the following steps:
The making of cup 1:
(1) fabric preparing cup 1 is cut out the size for being suitable for, inner fabric layer 11, steel ring and elastic cotton layer 12 are combined, preheating
It is fixed to press solidly, and pre-hot pressing temperature is 122 DEG C, and pressure is 1.5Pa, and the time is 3s;
(2) after using PUR to carry out dislocation bonding on the second lace layer 14 and the first lace layer 13, the first lace layer 13
The edge in front fits in the inner surface of inner fabric layer 11, treats the imbricate stitching of the first lace layer 13 and inner fabric layer 13
After, the first lace layer 13 is overturn along stitching thread 15, fits in the front of elastic cotton layer 12;Again by the edge of the second lace layer 14
Sew up fixing with the steel ring of cup 1;
(3) by hot-forming to the composition inner fabric layer 11 of cup 1, elastic cotton layer 12 and lace layer, hot pressing temperature is 133 DEG C, pressure
Power is 5.5Pa, and the time is 11s, obtains cup 1;
The making of side round part 2: make side round part 2, sews up elastic cord 21 in the inner side of side round part 2 lower end;
The overall stitching of bra: carry out the overall stitching of bra, obtain double-deck lace surface seamless bra.
Wherein, described PUR includes the component of following weight portion:
Polyadipate-1,4-butanediol ester glycol 20 parts
PDDA 25 parts
PTMG 10 parts
Methyl diphenylene diisocyanate 10 parts
Polydimethylsiloxane 8 parts
Chain extender 10 parts
Dimethylformamide 1 part
Aerosil 3 parts
Antioxidant 0.5 part
Catalyst 0.2 part.
In the present embodiment, the weight average molecular weight of described polyadipate-BDO esterdiol is 2200, PolyTHF
The weight average molecular weight of ether glycol is 1800.
Further, described catalyst is stannous octoate, antioxidant be mass ratio be three (2, the 4-di-t-butyls of 1:1
Phenyl) phosphite ester and 3-aryl-benzofuran-2-ketone.
Further, the preparation method of described PUR is as follows:
By polyadipate-1,4-butanediol ester glycol, PDDA, PTMG two
The vacuum dehydration at a temperature of 120 DEG C of alcohol, polydimethylsiloxane, dimethylformamide and antioxidant, is cooled to 60 DEG C, at nitrogen
Protection under, add 60 DEG C of molten methyl diphenylene diisocyanates, be warming up to 95 DEG C, react 150min, to-NCO matter
When amount mark reaches the 95% of theoretical value, adding chain extender stirring 10min, add catalyst and aerosil, stirring is all
Even, discharging, at a temperature of 115 DEG C, it is vacuum dried ripening 4h, obtains PUR.
The PUR shore hardness of this example is 29.2, and peel strength is 37.4N/2.5cm.
Remaining content of the present embodiment is same as in Example 1, repeats no more here.
Embodiment 4
The preparation method of a kind of double-deck lace surface seamless bra of the present embodiment, comprises the following steps:
The making of cup 1:
(1) fabric preparing cup 1 is cut out the size for being suitable for, inner fabric layer 11, steel ring and elastic cotton layer 12 are combined, preheating
It is fixed to press solidly, and pre-hot pressing temperature is 122 DEG C, and pressure is 1.5Pa, and the time is 3s;
(2) after using PUR to carry out dislocation bonding on the second lace layer 14 and the first lace layer 13, the first lace layer 13
The edge in front fits in the inner surface of inner fabric layer 11, treats the imbricate stitching of the first lace layer 13 and inner fabric layer 13
After, the first lace layer 13 is overturn along stitching thread 15, fits in the front of elastic cotton layer 12;Again by the edge of the second lace layer 14
Sew up fixing with the steel ring of cup 1;
(3) by hot-forming to inner fabric layer 11, elastic cotton layer 12 and lace layer, hot pressing temperature is 133 DEG C, and pressure is 5.5Pa, time
Between be 11s, obtain cup 1;
The making of side round part 2: make side round part 2, sews up elastic cord 21 in the inner side of side round part 2 lower end;
The overall stitching of bra: carry out the overall stitching of bra, obtain double-deck lace surface seamless bra.
Wherein, described PUR includes the component of following weight portion:
Polyadipate-1,4-butanediol ester glycol 25 parts
PDDA 15 parts
PTMG 18 parts
Methyl diphenylene diisocyanate 15 parts
Polydimethylsiloxane 6 parts
Chain extender 12 parts
Dimethylformamide 2 parts
Aerosil 2.5 parts
Antioxidant 1.5 parts
Catalyst 0.16 part.
In the present embodiment, the weight average molecular weight of described polyadipate-BDO esterdiol is 2100, PolyTHF
The weight average molecular weight of ether glycol is 2100.
Further, described catalyst is stannous octoate, and antioxidant is 3-aryl-benzofuran-2-ketone.
Further, the preparation method of described PUR is as follows:
By polyadipate-1,4-butanediol ester glycol, PDDA, PTMG two
The vacuum dehydration at a temperature of 118 DEG C of alcohol, polydimethylsiloxane, dimethylformamide and antioxidant, is cooled to 58 DEG C, at nitrogen
Protection under, add 55 DEG C of molten methyl diphenylene diisocyanates, be warming up to 88 DEG C, react 135min, to-NCO matter
When amount mark reaches the 95% of theoretical value, adding chain extender stirring 13min, add catalyst and aerosil, stirring is all
Even, discharging, at a temperature of 112 DEG C, it is vacuum dried ripening 4h, obtains PUR.
The PUR shore hardness of this example is 28.2, and peel strength is 36.7N/2.5cm.
Remaining content of the present embodiment is same as in Example 1, repeats no more here.
Embodiment 5
The preparation method of a kind of double-deck lace surface seamless bra of the present embodiment, comprises the following steps:
The making of cup 1:
(1) fabric preparing cup 1 is cut out the size for being suitable for, inner fabric layer 11, steel ring and elastic cotton layer 12 are combined, preheating
It is fixed to press solidly, and pre-hot pressing temperature is 122 DEG C, and pressure is 1.5Pa, and the time is 3s;
(2) after using PUR to carry out dislocation bonding on the second lace layer 14 and the first lace layer 13, the first lace layer 13
The edge in front fits in the inner surface of inner fabric layer 11, treats the imbricate stitching of the first lace layer 13 and inner fabric layer 13
After, the first lace layer 13 is overturn along stitching thread 15, fits in the front of elastic cotton layer 12;Again by the edge of the second lace layer 14
Sew up fixing with the steel ring of cup 1;
(3) by hot-forming to the composition inner fabric layer 11 of cup 1, elastic cotton layer 12 and lace layer, hot pressing temperature is 133 DEG C, pressure
Power is 5.5Pa, and the time is 11s, obtains cup 1;
The making of side round part 2: make side round part 2, sews up elastic cord 21 in the inner side of side round part 2 lower end;
The overall stitching of bra: carry out the overall stitching of bra, obtain double-deck lace surface seamless bra.
Wherein, described PUR includes the component of following weight portion:
Wherein, described PUR includes the component of following weight portion:
Polyadipate-1,4-butanediol ester glycol 20 parts
PDDA 20 parts
PTMG 15 parts
Methyl diphenylene diisocyanate 20 parts
Polydimethylsiloxane 6 parts
Chain extender 15 parts
Dimethylformamide 1 part
Aerosil 2 parts
Antioxidant 1 part
Catalyst 0.18 part.
In the present embodiment, the weight average molecular weight of described polyadipate-BDO esterdiol is 1900, PolyTHF
The weight average molecular weight of ether glycol is 2100.
Further, described catalyst is stannous octoate, antioxidant be mass ratio be three (2, the 4-di-t-butyls of 1:1
Phenyl) phosphite ester.
Further, the preparation method of described PUR is as follows:
By polyadipate-1,4-butanediol ester glycol, PDDA, PTMG two
The vacuum dehydration at a temperature of 115 DEG C of alcohol, polydimethylsiloxane, dimethylformamide and antioxidant, is cooled to 52 DEG C, at nitrogen
Protection under, add 52 DEG C of molten methyl diphenylene diisocyanates, be warming up to 92 DEG C, react 120min, to-NCO matter
When amount mark reaches the 95% of theoretical value, adding chain extender stirring 14min, add catalyst and aerosil, stirring is all
Even, discharging, at a temperature of 108 DEG C, it is vacuum dried ripening 5h, obtains PUR.
The PUR shore hardness of this example is 28.8, and peel strength is 37.3N/2.5cm.
Remaining content of the present embodiment is same as in Example 1, repeats no more here.
Last it should be noted that, above example is only in order to illustrate technical scheme, rather than the present invention is protected
Protecting the restriction of scope, although having made to explain to the present invention with reference to preferred embodiment, those of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention
Matter and scope.
Claims (10)
1. a double-deck lace surface seamless bra, including cup and side round part, it is characterised in that: described cup includes from the inside to the outside
Inner fabric layer, elastic cotton layer and the lace layer set gradually, lace layer includes the first lace layer and fits in the first lace layer
The second lace layer in front;It is provided with steel ring between inner fabric layer and elastic cotton layer;
First lace layer is provided with cladding inner fabric layer and first folding portion at elastic cotton layer edge, and the first folding portion is by the first flower bud
The imbricate of silk layer and inner fabric layer sews up the folded inverted formation of stitching thread of tailing edge the first lace layer;
The edge of the second lace layer is provided with the second folding portion of the edge fold inward along elastic cotton layer, the second folding portion and steel
Circle is sewed up;
First lace layer and the second lace layer are bondd by PUR.
Double-deck lace surface seamless bra the most according to claim 1, it is characterised in that: the lower end of described side round part is provided with
Elastic cord, the medial surface of elastic cord and side round part meets and connects, and the place of sewing up is formed at elastic cord surface and stretches tight without the stealth of flat-seam stria
Suture.
Double-deck lace surface seamless bra the most according to claim 1, it is characterised in that: the outer surface of described side round part is arranged
Having gusset lace, gusset lace and the second lace layer to splice mutually, gusset lace forms roses and lace, gusset in the lower end of side round part
Lace is provided with lock seaming along the upper end of side round part.
Double-deck lace surface seamless bra the most according to claim 1, it is characterised in that: described second lace layer not exclusively wraps
It is overlying on the outer surface of the first lace layer.
5. according to the preparation method of the arbitrary described double-deck lace surface seamless bra of claim 1-4, it is characterised in that: include with
Lower step:
The making of cup:
(1) fabric preparing cup being cut out the size for being suitable for, inner fabric layer, steel ring and elastic cotton layer are combined, preheating presses solidly
Fixed;
(2) after using PUR to carry out dislocation bonding on the second lace layer and the first lace layer, the front of the first lace layer
Edge fits in the inner surface of inner fabric layer, after the imbricate of the first lace layer with inner fabric layer is sewed up, by the first lace
Layer overturns along stitching thread, fits in the front of elastic cotton layer;Again the edge of the second lace layer is sewed up fixing with the steel ring of cup;
(3) by hot-forming to inner fabric layer, elastic cotton layer and lace layer, cup is obtained;
The making of side round part: make side round part, sews up elastic cord in the inner side of side round part lower end;
The overall stitching of bra: carry out the overall stitching of bra, obtain double-deck lace surface seamless bra.
The preparation method of a kind of double-deck lace surface seamless bra the most according to claim 5, it is characterised in that: described gusset
In the making step in portion, the sewing method of elastic cord is:
Elastic cord is turned down, penetrates, inside side round part in the middle part of sewing needle elastic cord at elastic cord turnover during stitching
Passing in the middle part of elastic cord at elastic cord turnover after fabric, along with fabric is advanced by Ya Song mechanism, elastic cord stitches with fabric again
Being combined, flat-seam line is can't see on the surface of elastic cord.
The preparation method of a kind of double-deck lace surface seamless bra the most according to claim 5, it is characterised in that: described hot melt
Glue is made up of the component of following weight portion:
Polyadipate-BDO esterdiol 20-30 part
PDDA 15-25 part
PTMG 10-20 part
Methyl diphenylene diisocyanate 10-30 part
Polydimethylsiloxane 3-8 part
Chain extender 10-20 part
Dimethylformamide 1-3 part
Aerosil 1-3 part
Antioxidant 0.5-2 part
Catalyst 0.1-0.2 part.
The preparation method of a kind of double-deck lace surface seamless bra the most according to claim 7, it is characterised in that: described poly-own
The weight average molecular weight of diacid-BDO esterdiol is 1800-2200, and the weight average molecular weight of PTMG is
1800-2200。
The preparation method of a kind of double-deck lace surface seamless bra the most according to claim 7, it is characterised in that: described chain extension
Agent is BDO.
The preparation method of a kind of double-deck lace surface seamless bra the most according to claim 7, it is characterised in that: described heat
The preparation method of melten gel is as follows:
By polyadipate-BDO esterdiol, PDDA, PTMG two
The 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, add 50-60 DEG C of molten methyl diphenylene diisocyanate, be warming up to 85-95 DEG C, reaction
100-150min, when reaching the 95% of theoretical value to-NCO mass fraction, adds chain extender stirring 10-15min, adds catalyst
And aerosil, stir, discharging, at a temperature of 105-115 DEG C, it is vacuum dried ripening 4-5h, obtains PUR.
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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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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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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 |