阅读说明：本技术 一种全成型透气文胸衬垫及其制备方法 (Full-molded breathable bra liner and preparation method thereof ) 是由 刘丽妍 杨蕾 于 2020-05-29 设计创作，主要内容包括：本发明公开了一种全成型透气文胸衬垫及其制备方法,涉及服装产品及加工技术,特别涉及一种3D打印全成型技术。所述制备方法为：1.根据人体胸部形状和塑形的要求进行衬垫三维结构模型设计；2.利用适合的3D打印技术,对所设计的衬垫模型进行全成型打印；3.将全成型3D打印文胸衬垫衬入文胸,做成具有舒适透气效果的文胸产品。本发明制备的全成型透气文胸衬垫,可根据人体需求,设计出个性化立体模型；采用3D打印增材制造技术,实现兼具透气和塑形效果的衬垫一次成型,减少材料的浪费,避免加工过程对环境的污染。经测试,全成型透气文胸衬垫透气量是传统海绵衬垫的2.3～6.3倍；穿着本发明的全成型透气衬垫文胸后,胸部得到了不同程度的聚拢和提升。(The invention discloses a fully-formed breathable bra liner and a preparation method thereof, relates to clothing products and processing technologies, and particularly relates to a 3D printing fully-formed technology. The preparation method comprises the following steps: 1. designing a liner three-dimensional structure model according to the shape and shaping requirements of the chest of a human body; 2. performing full-mold printing on the designed liner model by using a proper 3D printing technology; 3. and (3) lining the fully-formed 3D printed bra pad into the bra to form a bra product with comfortable and breathable effect. The fully-formed breathable bra liner prepared by the invention can be used for designing an individualized three-dimensional model according to the requirements of a human body; adopt 3D to print vibration material disk technique, realize having the liner one shot forming of ventilative and moulding effect concurrently, reduce the waste of material, avoid the pollution of course of working to the environment. Tests show that the air permeability of the fully-formed breathable bra pad is 2.3-6.3 times that of the traditional sponge pad; after the fully-formed breathable liner bra disclosed by the invention is worn, the breasts are gathered and lifted to different degrees.)

1. A fully formed breathable bra liner and a method of making the same comprising: (1) performing computer three-dimensional design on a liner structure according to the bra model and the requirements of coolness and air permeability; (2) performing full-mold printing on the designed liner model by using a proper 3D printing technology; (3) and (3) lining the fully-formed 3D printed bra pad into the bra to form a bra product with comfortable and breathable effect.

2. The method of claim 1, wherein the pad structure in step (1) is designed as a three-dimensional structure model suitable for 3D printing technology.

3. The method of claim 1, wherein the liner structure in step (1) includes inner and outer surfaces and a central cavity portion.

4. The method according to claim 1, wherein the inner and outer surfaces of the pad in step (1) are hollowed out portions having a certain shape and number.

5. The method according to claim 1, wherein the hollowed-out portions of the inner and outer surfaces of the liner structure in step (1) are round holes.

6. The method according to claim 1, wherein the diameter of the circular hole in the step (1) is 4mm to 8 mm.

7. The method according to claim 1, wherein the wall thickness of the inner and outer surfaces of the gasket in step (1) is 3 mm.

8. The method for preparing the breast pad of claim 1, wherein the overall thickness of the pad in step (1) is designed according to the shape and shaping requirements of the breast of a human body, such as 20mm, 24mm and the like.

9. The method of claim 1, wherein the printing in step (2) is by fused deposition modeling.

10. The method according to claim 1, wherein the printing material in step (2) is a polymer material with high flexibility and resilience suitable for FDM 3D printing in the production of bra pad.

11. The manufacturing method according to claim 1, wherein the printing pattern filling rate in the step (2) is 10% to 20%.

Technical Field

The invention relates to the technical field of bra liners, in particular to a fully-molded, cool and breathable bra liner and a preparation method thereof, and more particularly relates to a fully-molded bra liner based on a 3D printing technology.

Background

With the importance of women on the health and shape of the breasts, the bra becomes a necessary clothing single product. The bra (also called as "bra") is mainly composed of cups, hearts, side pieces, hook rings and shoulder straps, and the liners in the cups of the Chinese bra mainly play a role in shaping and supporting. The bra pad material comprises polyurethane foam, latex, fabric laminated cloth, non-woven cloth, spacing fabric and the like. In addition, some women also select the bra with water bag, air bag and silica gel as the cushion in order to pursue the shaping effect and special efficacy of the bra.

Currently, the polyurethane foam which is widely used in the market and commonly called sponge is a compound of petroleum and asphalt, and has chronic harm to human bodies. The processing flow is complex, most of the materials are cut off and discarded by waste materials, the waste of raw materials and environmental pollution are caused, and the waste materials are difficult to recycle. The polyurethane foam pad has poor air permeability in the use process, is easy to yellow and blacken, and particularly after hot weather or severe sports, when a bra with the polyurethane foam pad is worn, the generated heat and sweat can not be discharged in time, so that a wearer feels moist and sticky, is stuffy and difficult to endure, is easy to breed a large amount of bacteria and is unfavorable to the health of the human body.

For the foregoing reasons, there is a need for improvements in materials and processes to provide a fully formed, cool, breathable brassiere pad.

Disclosure of Invention

The invention discloses a liner for a bra, which is more comfortable and breathable in material and structure than the traditional liner and has good supporting and shaping effects on breasts.

In order to achieve the purpose, the technical scheme adopted by the invention comprises the following steps:

1. according to the shape and the shaping requirements of the chest of a human body, in order to achieve the cool and breathable effect, the three-dimensional structure design of the bra pad is carried out;

2. performing full-mold printing on the designed gasket by using a proper 3D printing technology;

3. and (3) lining the fully-formed 3D printed bra pad into the bra to form a bra product with comfortable and breathable effect.

In the invention, 3D design software is utilized in the step 1 to design a three-dimensional model with a pad structure, wherein the middle cavity, the inner surface and the outer surface of the three-dimensional model are hollow.

In the invention, the hollow-out shapes of the inner surface and the outer surface in the step 1 are round hole shapes.

In the invention, the diameter of the round hole in the step 1 is 4-8 mm.

In the invention, the wall thickness of the inner surface and the outer surface of the liner in the step 1 is 3 mm.

In the invention, the thickness of the pad in the step 1 is designed according to the shape and the shaping requirements of the chest of the human body, such as 20mm and 24 mm.

In the invention, the printing in step 2 adopts Fused Deposition Modeling (FDM), and the operating principle is that a filamentous thermoplastic material is heated and melted by a spray head, the spray head moves to a specified position according to a set track under the control of a computer, the material in the molten state is sprayed out from a spray nozzle and solidified, the sprayed material is deposited on the solidified material in the previous layer, and the final finished product is formed by the layer-by-layer accumulation of the material.

In the invention, the printing material in the step 2 is a high polymer material which has higher flexibility and rebound resilience and is suitable for FDM 3D printing.

In the invention, the filling rate of the printing model in the step 2 is 10-20%.

Compared with the prior art, the invention has the beneficial effects that: utilizing computer three-dimensional structure design software, and designing a personalized three-dimensional model according to the shape and the shaping requirements of the chest of a human body; adopt 3D to print vibration material disk technique, realize having the liner one shot forming of ventilative and moulding effect concurrently, reduce the waste of material, avoid the pollution of course of working to the environment.

Drawings

FIG. 1 is a schematic view of a fully formed breathable brassiere according to the present invention.

FIG. 2 is a schematic cross-sectional view of a fully formed breathable brassiere pad of the present invention.

Wherein, 1, the gasket body is fully molded; 2. the outer surface of the full-molded liner bra is provided with hollowed circular holes; 3. the inner surface of the full-molded liner bra is provided with hollowed circular holes; 4. the wall thickness of the inner surface of the full-molded liner bra; 5. the outer surface wall thickness of the full-molded liner bra.

Detailed Description

The following examples are given to illustrate specific embodiments of the present invention.

Example 1: the circular hole on the surface of the fully-formed breathable bra liner is 6mm in uniform aperture, the wall thickness of the inner surface and the wall thickness of the outer surface of the liner are 3mm, the thickness of the liner is 24mm, and the filling rate of the printing model is 10%.

Example 2: the circular hole on the surface of the fully-formed breathable bra liner is 6mm in uniform aperture, the wall thickness of the inner surface and the wall thickness of the outer surface of the liner are 3mm, the thickness of the liner is 24mm, and the filling rate of the printing model is 20%.

Example 3: the circular hole on the surface of the fully-formed breathable bra liner is 5mm in uniform aperture, the wall thickness of the inner surface and the wall thickness of the outer surface of the liner are 3mm, the thickness of the liner is 20mm, and the filling rate of the printing model is 15%.

Example 4: the circular holes on the surface of the fully-formed breathable bra liner are longitudinally-changed in aperture, namely 4mm, 6mm and 8mm, the wall thickness of the inner surface and the wall thickness of the outer surface of the liner are 3mm, the thickness of the liner is 24mm, and the filling rate of a printing model is 10%.

Example 5: the circular holes on the surface of the fully-formed breathable bra liner are transversely changed in aperture, namely 4mm, 6mm and 8mm, the wall thickness of the inner surface and the wall thickness of the outer surface of the liner are 3mm, the thickness of the liner is 24mm, and the filling rate of a printing model is 10%.

And (3) performance testing: the air permeability and the moldability of the fully formed breathable bra pads prepared in examples 1-5 were compared with those of conventional sponge pads.

The test method comprises the following steps:

1. and (3) testing air permeability: the experimental instrument consists of a blowing device, a bracket, test paper, a string and a camera. The bra pad to be tested is fixed at the bottom end of the bracket, and the paper for testing is hung from the upper end of the bracket by a string to be aligned with the position of the pad. At distance pad 15cm department, power of use is 800W's blast apparatus, blows to brassiere pad, and the gas that sees through the pad blows up paper, forms certain contained angle with vertical direction, waits to measure its contained angle after stabilizing. The better the air permeability, the greater the angle at which the paper is blown. The traditional sponge pad with the same shape and thickness and the fully-formed breathable bra pad designed by the invention are selected for testing, and the results are compared and analyzed.

2. Shaping effect: the shaping effect of the bra is mainly embodied by gathering and supporting effects, and 5 parameters of the breast distance, the breast depth, the breast transverse diameter, the breast neck point, the neck pit point and the chest line are selected as the measurement parameters of the shaping effect of the bra. The breast space, breast depth and breast transverse diameter mainly measure the gathering effect of the bra, and the breast neck point, neck pit point-breast line measure the breast lifting effect.

The shaping effect value is | data when wearing the brassiere-data when naked state |, and the bigger the shaping effect value is, it is better to explain the shaping effect.

The result shows, compares with traditional sponge liner, and the gas permeability of the ventilative brassiere liner of full shaping is superior to the sponge liner far away, and the ventilative volume of measuring contained angle of the ventilative brassiere liner of full shaping is 2.3 ~ 6.3 times of traditional sponge liner measuring contained angle. The larger the area of the round hole of the hollow part on the surface of the fully-formed gasket is, the better the air permeability is; the thicker the thickness of the fully-formed liner is, namely the larger the hollow volume is, the better the air permeability is, which is just opposite to the traditional sponge liner, and the trouble that the female with the smaller chest wants to obtain better shaping effect and selects the bra with the thicker liner but is stuffy and hard to endure is avoided.

After the volunteer wears the fully-formed breathable liner bra, the breasts are gathered and lifted to different degrees, the inter-breast distance shaping effect value is improved by 40-60% compared with that of the traditional sponge bra, and the deep breast shaping effect value is improved by 30-50% compared with that of the traditional sponge bra.