Shading and breathable soft sheet, manufacturing method, quilt and fabric

Abstract

The invention relates to the field of articles for daily use, in particular to a light-shading and breathable soft sheet-shaped object, a manufacturing method of the light-shading and breathable soft sheet-shaped object, and a quilt and fabric adopting the light-shading and breathable soft sheet-shaped object. The soft sheet comprises a first light shielding layer, a first ventilation layer and a second light shielding layer, the first ventilation layer is located between the first light shielding layer and the second light shielding layer, the first light shielding layer is provided with a plurality of first ventilation holes, the second light shielding layer is provided with a plurality of second ventilation holes, and the first ventilation holes and the second ventilation holes are staggered in position. Compared with a traditional thin material, the thick material has the unique effects of being more breathable, cooler and lighter in weight, and can be applied to multiple fields. According to the invention, a flexible porous structure ventilation layer with a controllable thin-wire-diameter three-dimensional network and capable of being used for a long time is realized by adopting dual-curing 3D printing. The invention further provides a quilt which adopts the soft sheet-shaped object. The invention also provides a fabric which adopts the soft sheet-shaped object.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of daily necessities, in particular to a light-shielding and air-permeable soft sheet-shaped object and a manufacturing method thereof, and a quilt and a fabric using the soft sheet-shaped object. BACKGROUND

[0002] Traditional quilts, fabrics, light-shielding curtains, light-shielding cloths, packaging materials, medical dressings, etc. cannot simultaneously shield light and ventilate. For example, window curtains (bed curtains) shield light and protect privacy, but cause poor air circulation; clothes with holes for ventilation are cool and ventilated, but expose the body; a hat without a top effectively dissipates heat, but the hair is more likely to be sunburned; some people like to sleep with their heads covered with a quilt, and light shielding can improve sleep quality, but poor air circulation and pressure on the eyeball can cause health problems; some packaging materials and biological and pharmaceutical products also have light-shielding and air-permeable needs.

[0003] There is a great demand for the above aspects. Taking a quilt as an example, the main factors affecting sleep are light, sound, and tools. According to the purchase of sleep aid tools by Chinese netizens in 2021, 43.5% of netizens purchased eye masks and eye patches; 30.1% of netizens purchased cassia seed and latex pillows; and 25.8% of netizens chose to purchase soundproof earplugs. The above three aspects correspond to light, tool comfort, and noise, which are the main reasons affecting sleep. Sleeping with one's head covered can effectively block the influence of light and reduce the impact of sound, but the air is not smooth, and the weight of the covering object causes a sense of oppression, which is uncomfortable and can cause eye and respiratory health problems; some textile fabrics need to block the line of sight, ventilate, and cool; therefore, light-shielding and air-permeable quilts and fabrics are needed to meet the corresponding needs.

[0004] Publication No. CN215457040U discloses an antibacterial and skin-friendly silk quilt, which includes a quilt core, a quilt cover, a plurality of air holes at the front end of the quilt core, baffles at both ends of the air holes, a plurality of small holes in the baffles, a cloth tube fixedly connected to the inner wall of the air hole, a spherical ball provided on the inner wall of the cloth tube, a plurality of round holes in the spherical ball, a hollow spherical ball, and a negative ion material inside the spherical ball.

[0005] The scheme has the following defects: first, the core entity part is usually relatively heavy, which can cause compression to the eyes and face, poor comfort, and health problems, especially eye compression health problems. Second, many through holes need to be set, each through hole needs to be connected with a cloth sleeve, each cloth sleeve needs to be fixed with the core, and a ball with a plurality of round holes is also needed, and a baffle with a plurality of small holes is arranged at both ends of the through hole, so the process flow is complex, the processing difficulty is great, the precision is high; third, the complex process flow and numerous component materials result in high labor (processing) and material costs and inventory management procurement costs; fourth, air needs to pass through seven air passages, including the gap between the baffle and the baffle on both sides, the hole between the small ball and the baffle on both sides, the hole above and below the small ball, and the space inside the small ball, and the air flow is hindered when passing through each air passage, especially at the connection, and the small ball with through holes hinders air flow more, resulting in poor air flow; fifth, the round holes of the small ball need to be fixed upward and downward at both ends, which requires time and effort to ensure the position and direction of the small holes during processing, and the ball body is easy to rotate, which can cause the small holes at both ends to be turned to the cloth sleeve, and the air passage is blocked; sixth, the round holes of the small ball are easy to transmit light. SUMMARY

[0006] In order to solve the above problems, the application provides a light-shielding and breathable soft sheet-shaped object and a manufacturing method, and a quilt and a fabric using the soft sheet-shaped object, so as to achieve a light-shielding and breathable effect. The application has the unique effect that the thicker material is more breathable, cooler and lighter than the traditional thin material. In order to adapt to the needs of some application scenarios, the application creatively adopts a porous material ventilation layer + three-dimensional network structure + 3D printing + double solidification method to achieve excellent ventilation, ultra-light weight and certain sound absorption effect. The ventilation layer needs to be light, thin and breathable. In order to achieve this effect, the controllable fine line diameter (for example, 0.5 mm and below) three-dimensional network structure is the most ideal solution, but the traditional method cannot achieve it. The application adopts a 3D printing scheme to more accurately complete the complex structure and achieve controllable and regular structure, but it is very difficult to 3D print a controllable fine line diameter (for example, 0.5 mm and below) three-dimensional network of a flexible material porous structure ventilation layer that can be used for a long time. The general 3D printing light-cured material is only solidified by ultraviolet irradiation, but it cannot form a stable long-chain structure of chemical bonds, so the performance is very limited. The application creatively uses double solidification to solve this problem, that is, after light-cured printing, residual cleaning is performed in a centrifuge, and then heat solidification is performed, so that the chemical bonds can form a stable long-chain structure, thereby having super strong performance that ordinary light-cured materials cannot achieve, and realizing a fine line diameter (for example, 0.5 mm and below) three-dimensional network of super strong elastic support, light, thin and breathable structure. In order to improve the comprehensive performance of light weight, ventilation, support and softness, the application creatively adopts a three-pyramid structure basic support unit, and adopts an inner triangular structure to support the midpoints of the sides of the triangular face, and adopts an arc support structure at the sharp corners, so that the stress points and weak points are supported, and the comprehensive performance is greatly improved.

[0007] The meanings of some nouns in the application are as follows: light shielding includes complete light shielding and half light shielding. The opening of the porous material refers to the interconnection of the pores. The open-pore porous material refers to a porous material with full open pores or mainly open pores. The fabric includes fabrics used in the fields of clothing textiles, home textiles, industrial textiles, sports and outdoor, packaging materials, and bandaging materials.

[0008] The technical solutions provided by the application are as follows:

[0009] The first aspect of the application provides a light-shielding and breathable soft sheet-shaped object, which comprises a first light-shielding layer, a first ventilation layer and a second light-shielding layer, characterized in that: the first ventilation layer is located between the first light-shielding layer and the second light-shielding layer, the first light-shielding layer is provided with a plurality of first ventilation holes, the second light-shielding layer is provided with a plurality of second ventilation holes, the first ventilation holes and the second ventilation holes are staggered with each other in position, and the first ventilation layer is provided with an air channel connecting the first ventilation holes and the second ventilation holes.

[0010] Preferably, the air passage provided in the first ventilation layer and connecting the first ventilation hole and the second ventilation hole is a plurality of curved through holes.

[0011] Preferably, the first ventilation layer is a layer of open-cell porous material, and the air passage provided in the first ventilation layer and connecting the first ventilation hole and the second ventilation hole is a pore of the layer of open-cell porous material.

[0012] The industry and literature have various classifications and sub-classifications of porous materials. The open cells of the porous material described in the present application refer to pores that are interconnected. Actual porous materials sometimes have both open-cell and closed-cell pores. The open-cell porous material described in the present application refers to a porous material with all open-cell pores or mainly open-cell pores.

[0013] Preferably, the first ventilation layer is a layer of open-cell foam plastic.

[0014] Foam plastic generally has a much higher specific strength than other porous materials, and thus has high comprehensive performance in support, volume, and weight, and has the characteristics of low cost and simple molding process.

[0015] Preferably, the first ventilation layer is a three-dimensional network structure.

[0016] Preferably, the basic support structure unit of the first ventilation layer is a triangular pyramid structure composed of lines, each triangular face of the triangular pyramid structure is provided with an inner triangle, three vertices of the inner triangle are fixedly connected to the midpoints of three sides of the triangular face, an arc-shaped support is arranged at the sharp corner of the triangular face of the triangular pyramid structure, and the first ventilation layer is composed of a plurality of the triangular pyramid structures connected to each other.

[0017] A triangle is the most stable planar structure, and the four faces of the triangular pyramid structure are all triangular structures, which have good stability. The weakest part of the support of the first ventilation layer composed of the triangular pyramid structures is the midpoint of each side of the triangular face, and the direct stress is at the vertex of the triangular face. Therefore, strengthening these two parts helps to improve the overall support force. The inner triangle structure is used to support the midpoints of the sides of the triangular face, and the arc-shaped support structure is used at the sharp corner, which greatly reduces the volume of the support structure, improves the ventilation, and lightens the weight.

[0018] Preferably, a second ventilation layer and a third light-blocking layer are provided, the second ventilation layer is located between the second light-blocking layer and the third light-blocking layer, the third light-blocking layer is provided with a plurality of third ventilation holes, the second ventilation layer is a layer of open-cell porous material, a three-dimensional network structure layer, or a solid layer provided with second ventilation layer through holes connecting the second ventilation hole and the third ventilation hole.

[0019] In a second aspect, the present application provides a method for manufacturing a light-shielding and air-permeable soft sheet, characterized in that the method comprises the following steps:

[0020] creating a digital 3D model of the air-permeable layer;

[0021] inputting the model into a 3D printer;

[0022] generating thin layer slice information;

[0023] layer by layer heating or spraying the material and stacking it layer by layer to form a complete air-permeable layer;

[0024] photocuring;

[0025] post-processing;

[0026] heat curing;

[0027] fixing a light-shielding layer provided with air holes on both sides of the air-permeable layer, the positions of the air holes of different light-shielding layers being staggered with each other, and forming a three-layer or five-layer structure as needed.

[0028] The air-permeable layer needs to be light, thin, air-permeable, and have a controllable fine line diameter (e.g., 0.5 mm or less) three-dimensional mesh structure, which is the most ideal solution, but traditional methods cannot achieve it. The present application uses a 3D printing solution to more accurately complete complex structures and achieve controllable and regular structures, but it is very difficult to 3D print a controllable fine line diameter (e.g., 0.5 mm or less) three-dimensional mesh, flexible material porous structure air-permeable layer that can be used for a long time. The general 3D printing photocurable material is only cured by ultraviolet irradiation, but it cannot form a stable long-chain structure of chemical bonds, so the performance is very limited. The present application creatively uses double curing to solve this problem, i.e., after photocuring printing, residual cleaning is performed in a centrifuge, and then heat curing is performed, which can form a stable long-chain structure of chemical bonds, thereby having super strong performance that ordinary photocurable materials cannot achieve, and realizing a fine line diameter (e.g., 0.5 mm or less) three-dimensional mesh super strong elastic support, light, thin, and air-permeable structure.

[0029] In a third aspect, the present application provides a quilt using the soft sheet of the first aspect.

[0030] In a fourth aspect, the present application provides a fabric using the soft sheet of the first aspect.

[0031] The soft film and partial products have the following advantages: 1. The light-shielding effect is achieved by the staggered arrangement of the air holes in the light-shielding layer, and the stable support of the air-permeable layer ensures the durability and stability of the air-permeable structure, thereby achieving stable light-shielding and air-permeable effects. 2. The air-permeable effect is excellent. The curved hole scheme can set three layers of holes into a completely connected air channel, ensuring smooth air passage; the use of open-pore material layer scheme, the porosity of high-porosity material can reach 90-98% or more, the solid part that hinders air passage is only 2-10% or less than 2%, so small solid support volume has little effect on air shielding. 3. The open-pore material layer scheme is used in the air-permeable layer, and the air-permeable layer and the light-shielding layer can be randomly attached to achieve good air-permeable effect. The light-shielding layer does not need to be aligned with the multiple air holes in the traditional hole scheme, which greatly reduces the processing difficulty, precision requirement, reduces the processing process, reduces the processing cost and time cost, improves the yield and efficiency. 4. The light-shielding effect can be adjusted by the position of the air holes in the light-shielding layer and the number of light-shielding layers, thereby achieving different light-shielding requirements such as full light-shielding, half light-shielding, and only blocking peeping. 5. The porous material is ultra-light, for example, the weight of 98% porosity porous material is only about 2% of the same volume and material, and the corresponding weight is only about 2% of ordinary materials. This part of the material causes little compression, strong comfort, and no health problems caused by compression of the face or eyes. 6. Through the air-permeable structure setting, thick materials are more ventilated, cooler, and lighter than traditional thin materials. 7. The three-prism pore structure is greatly strengthened by the arc support of the sharp corner and the internal triangle support. The triangle is the most stable plane geometric shape, and the three-prism has four triangular faces, so the support performance is very strong. Combined with the use of reinforced materials, the three-prism's angle and edge support is strengthened, thereby achieving further optimization of porosity and support strength. 8. The production requirements are simple, reducing the processing cost and making the product have a higher cost performance. 9. It can be made of completely degradable materials, in line with green building and green home policies, contributing to environmental protection and sustainable development. 10. The light-shielding and comfort are strong, and the sound-absorbing effect is achieved in some scenes, effectively avoiding the problems caused by light, sound, and appliance comfort in sleep and indoor environment. 11. Three-dimensional network structure + 3D printing + double solidification method realizes the leap of air permeability and lightweight quality.

[0032] The quilt provided by the application has the following advantages: first, better sleep. According to the purchase of sleep aid tools by Chinese netizens in 2021, 43.5% of netizens purchased eye masks and eye patches; 30.1% of netizens purchased cassia seed and latex pillows; 25.8% of netizens chose to purchase soundproof earplugs. The above three aspects are the main reasons affecting sleep, namely light, comfort of the tool, and noise. The application can effectively block the influence of light due to its light-blocking and air-permeable properties. The open-pore material can reduce the influence of noise due to its sound-absorbing effect. The main components are made of open-pore material, which is light in weight and has strong air permeability, effective light-blocking, sound-absorbing, and comfortable. It solves the problems of light, noise, and comfort of the tool, and helps users sleep better. Second, improve brain function, improve memory, word association, and reaction time cognitive skills. Better memory can improve learning and work performance, and faster reaction time is crucial in situations such as sports, driving, or other fast reactions. The research results of Dr. Viviana Greco of the Brain Research Imaging Center of Cardiff University in Wales and the views of Dr. Thomas Preston of the Department of Neurology at Stony Brook Medical School in New York confirm that wearing an eye mask to sleep has the above effects. However, there are many problems with wearing an eye mask to sleep, such as pressing the eyeball when sleeping, automatically falling off, feeling scared when the eyes are covered, pinching the ears, not being able to prevent noise, not being able to prevent light, and being stuffy, etc. The use amount is not popular compared with the total demand population. The quilt provided by the application does not have the above problems, and has better light-blocking, sound-absorbing, and comfort effects. BRIEF DESCRIPTION OF DRAWINGS

[0033] The application will be further described below in conjunction with the drawings and examples.

[0034] Figure 1 The three-layer structure of the soft film-shaped object of the application is shown in the figure;

[0035] Figure 2 The first and second light-blocking layer structure of the application is shown in the figure;

[0036] Figure 3 The curved through-hole structure of the soft film-shaped object of the application is shown in the figure;

[0037] Figure 4 The three-prism structure of the application is shown in the figure;

[0038] Figure 5 The cuboid structure composed of multiple three-prism structures of the application is shown in the figure

[0039] Figure 6 The five-layer structure of the soft film-shaped object of the application is shown in the figure

[0040] Figure 7 The first to third light-blocking layer structure of the soft film-shaped object of the application is shown in the figure DETAILED DESCRIPTION

[0041] The present application provides a light shielding and air permeable soft sheet, which is widely used in the field of life, including quilt, fabric, light shielding curtain, light shielding cloth, packaging material, medical dressing material, etc. The fabric includes fabric used in various fields such as clothing, shoes, hats, curtains (light shielding curtain), bed curtain, outdoor products, etc. In order for the person skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0042] Embodiment 1

[0043] Figure 1 and Figure 2 The structure diagram of the first embodiment is shown in the figure, wherein Figure 1 The three-layer structure diagram of the soft sheet of the present application is shown in the figure, Figure 2 The structure diagram of the first and second light shielding layers of the present application is shown in the figure. In an embodiment, a light shielding and air permeable soft sheet includes a first light shielding layer 1, a first air permeable layer 2 and a second light shielding layer 3, the first air permeable layer 2 is located between the first light shielding layer 1 and the second light shielding layer 3, the first light shielding layer 1 is provided with a plurality of first air permeable holes 10, the second light shielding layer 3 is provided with a plurality of second air permeable holes 30, the first air permeable holes 10 and the second air permeable holes 30 are staggered in position, and the first air permeable layer 2 is provided with an air passage connecting the first air permeable holes 10 and the second air permeable holes 30.

[0044] The first light shielding layer 1 and the second light shielding layer 3 are light shielding soft sheets, and the materials that can be used include cotton, hemp, polyester, acrylic, chemical fiber, plastic and various materials. The layers can be fixed by various methods, such as gluing. The staggered positions of the first air permeable holes 10 and the second air permeable holes 30 can block light other than light at a certain angle from directly shining through. By increasing the staggered distance, the light shielding effect can be enhanced. According to the needs, the first light shielding layer 1 and the second light shielding layer 3 can use completely light shielding or semi-light shielding fabric. In another embodiment, light shielding fabric that can block peeping is used.

[0045] The first air permeable layer 2 plays a role of supporting the two light shielding layers and allowing air to pass through. The air passage is a pore connecting the first air permeable holes 10 and the second air permeable holes 30. The air passage forms a passage with the first air permeable holes 10 and the second air permeable holes 30, so as to realize air permeability.

[0046] Embodiment 2

[0047] In another embodiment, a light-shielding and air-permeable soft sheet-like object comprises a first light-shielding layer 1, a first air-permeable layer 2 and a second light-shielding layer 3, the first air-permeable layer 2 is located between the first light-shielding layer 1 and the second light-shielding layer 3; the first light-shielding layer 1 is provided with a plurality of first air-permeable holes 10, the second light-shielding layer 3 is provided with a plurality of second air-permeable holes 30, the first air-permeable holes 10 and the second air-permeable holes 30 are staggered in position, and the first air-permeable layer 2 is provided with air channels that communicate the first air-permeable holes 10 and the second air-permeable holes 30.

[0048] In this embodiment, the air channels that communicate the first air-permeable holes 10 and the second air-permeable holes 30 in the first air-permeable layer 2 are a plurality of curved through holes 201.

[0049] Since light propagates in a straight line, the curved through holes can play a light-shielding effect. Common materials such as rubber, polyurethane, foamed latex, cotton, cloth, linen, XPE, EVA, PU, PVC, TPE, TEP, NBR can be used to manufacture the first air-permeable layer 2 of this embodiment.

[0050]

Embodiment 3

[0051] In another embodiment, a light-shielding and air-permeable soft sheet-like object comprises a first light-shielding layer 1, a first air-permeable layer 2 and a second light-shielding layer 3, the first air-permeable layer 2 is located between the first light-shielding layer 1 and the second light-shielding layer 3; the first light-shielding layer 1 is provided with a plurality of first air-permeable holes 10, the second light-shielding layer 3 is provided with a plurality of second air-permeable holes 30, the first air-permeable holes 10 and the second air-permeable holes 30 are staggered in position, and the first air-permeable layer 2 is provided with air channels that communicate the first air-permeable holes 10 and the second air-permeable holes 30.

[0052] The first air-permeable layer 2 is an open-pore porous material layer, and the air channels that communicate the first air-permeable holes 10 and the second air-permeable holes 30 in the first air-permeable layer 2 are the pores of the open-pore porous material. The pores of the porous material are distributed throughout the whole body, and the pores of the open-pore porous material are all or mostly interconnected, without the need for a certain specific pore to be directly connected to a certain first air-permeable hole 10 and a certain second air-permeable hole 30. When the three layers are stacked in order, it is easy to form an air channel that communicates from a first air-permeable hole 10 to a second air-permeable hole 30 through the pores of the porous material.

[0053] There are various classifications and sub-classifications of porous materials in the industry and literature, and the open pores of the porous material described in this invention refer to pores that are interconnected. Actual porous materials sometimes have both open pores and closed pores, and the open-pore porous material described in this invention refers to porous materials that are fully open-pored or mainly open-pored. Porous materials with an open-pore rate of 50% or more can achieve air-permeable effects, but the effect is generally applicable in certain scenarios that do not require high requirements. Most applications use fully open-pored or nearly fully open-pored porous materials. Preferably, the pore size of the porous material is selected to be sub-millimeter to centimeter.

[0054] Preferably, the first ventilation layer 2 is a layer of open-cell foam. Foam is generally much stronger than other porous materials, so it has high support, volume, and weight performance, and has the characteristics of low cost and simple forming process, which is better than other porous materials.

[0055] Preferably, the first ventilation layer 2 is a three-dimensional network structure, such as a networked polyurethane or loofah.

[0056] Preferably, the basic support structure unit of the open-cell porous material of the first ventilation layer 2 is a triangular pyramid structure 6 composed of lines, each triangular face 62 of the triangular pyramid structure 6 is provided with an inner triangle 63 composed of lines, and the three vertices of the inner triangle 63 are fixedly connected to the midpoints of the three edges of the triangular face 62. An arc-shaped support 61 is arranged at the sharp corner of the triangular face 62 of the triangular pyramid structure 6. See Figure 4 A plurality of triangular pyramid structures 6 can be made into a cuboid structure, and then a sheet structure, Figure 5 The above is a schematic diagram of a cuboid structure composed of a plurality of triangular pyramid structures. For clear display, a plurality of pure triangular pyramids are shown to form a cuboid structure 7, and a plurality of triangular pyramids with arc-shaped support structures 61 and inner triangles 63 are shown to form a cuboid structure 8. A plurality of cuboid structures 8 constitute the first ventilation layer 2 in this embodiment.

[0057] A triangle is the most stable planar structure, and the four faces of the triangular pyramid structure 6 are all triangular structures, which are stable. The weakest support of the first ventilation layer 2 composed of the triangular pyramid structure 6 is the midpoint of each edge of the triangular face, and the direct impact point is the vertex of the triangular face 62. Therefore, strengthening these two places helps to improve the overall support. The inner triangle 63 structure supports the midpoints of the edges of the triangular face 62, and the arc-shaped support 61 is used at the sharp corner to achieve the effect of less support structure volume, better support effect, higher ventilation, and lighter weight, and optimize the performance. The first ventilation layer 2 can be manufactured by molding or additive manufacturing.

[0058]

Embodiment 4

[0059] Figure 6 is a schematic diagram of a five-layer structure of a soft sheet, Figure 7 is a schematic diagram of the first to third light shielding layers. As described in Embodiments 1-4, in another embodiment, a second ventilation layer 4 and a third light shielding layer 5 are provided, the second ventilation layer 4 is located between the second light shielding layer 3 and the third light shielding layer 5, the third light shielding layer 5 is provided with a plurality of third ventilation holes 50, the second ventilation layer 4 is a layer of open-cell porous material, or a three-dimensional network structure layer, or a solid layer provided with second ventilation layer through holes communicating with the second ventilation holes 30 and the third ventilation holes 50.

[0060] In another embodiment, the first ventilation layer 2 and the second ventilation layer 4 are both layers of porous material.

[0061] In another embodiment, the first ventilation layer 2 and the second ventilation layer 4 are both layers of three-dimensional mesh structure, for example, both are layers of meshed polyurethane.

[0062] In another embodiment, the first ventilation layer 2 and the second ventilation layer 4 are both solid layers, the first ventilation layer 2 is provided with first ventilation layer through holes that communicate the first ventilation holes 10 and the second ventilation holes 30, and the second ventilation layer 4 is provided with second ventilation layer through holes that communicate the second ventilation holes 30 and the third ventilation holes 50.

[0063]

Embodiment 5

[0064] A method for manufacturing a light-shielding and ventilation soft sheet-shaped object, comprising the following steps:

[0065] Creating a digital 3D model of the ventilation layer;

[0066] Inputting the model into a 3D printer;

[0067] Generating thin layer slicing information;

[0068] Layer by layer heating or spraying the material and stacking it layer by layer to form a complete ventilation layer;

[0069] Photocuring;

[0070] Post-processing;

[0071] Thermal curing;

[0072] Fixing light-shielding layers provided with ventilation holes on both sides of the ventilation layer, the positions of the ventilation holes of different light-shielding layers are staggered with each other, and a three-layer or five-layer structure is formed according to needs.

[0073] In another embodiment, a resin material is used to manufacture a light-shielding and ventilation soft sheet-shaped object.

[0074] In another embodiment, the ventilation layer adopts a three-dimensional mesh structure.

[0075] In another embodiment, the basic structural unit of the ventilation layer is a three-prism shape composed of lines, and a plurality of interconnected three-prism structures form the ventilation layer.

[0076] The ventilation layer in the present embodiment refers to the first ventilation layer 2 or the second ventilation layer 4.

[0077]

Embodiment 6

[0078] A quilt using the soft sheet-shaped object described in Embodiments 1-5.

[0079] The soft sheet-shaped object can be used as a whole, or part of the soft sheet-shaped object can be used and other structures can be used for other parts.

[0080] Example 7

[0081] A fabric using the soft sheet of Examples 1-5. The fabric can be used to make home textiles, outdoor goods, clothing and hats, packaging materials, bandages, other coverings. The home textiles include window shades, and the outdoor goods include tarpaulins.

Claims

1. A light-shielding, air-permeable sheet-like article comprising a first light-shielding layer, a first air-permeable layer, and a second light-shielding layer, characterized in that: The first ventilation layer is located between the first light-shielding layer and the second light-shielding layer. The first light-shielding layer is provided with a plurality of first ventilation holes. The second light-shielding layer is provided with a plurality of second ventilation holes. The positions of the first ventilation holes and the second ventilation holes are staggered with each other. The first ventilation layer is provided with an air passage connecting the first ventilation holes and the second ventilation holes.

2. The soft sheet according to claim 1, wherein The air passages are a plurality of curved through holes.

3. The soft sheet according to claim 1, wherein The first ventilation layer is an open-pore porous material layer, and the air channels are pores of the open-pore porous material.

4. The soft sheet according to claim 3, wherein The first ventilation layer is an open-cell foam plastic layer.

5. The soft sheet according to claim 1 or 3 or 4, wherein The first ventilation layer is a three-dimensional network structure.

6. The soft sheet according to claim 5, wherein The basic supporting structural unit of the first ventilation layer is a triangular pyramid structure composed of lines, each triangular face of the triangular pyramid structure is provided with an inner triangle, the three vertices of the inner triangle are fixedly connected to the midpoints of the three sides of the triangular face, and arc supports are provided at the sharp corners of the triangular face of the triangular pyramid structure. The first ventilation layer is composed of a plurality of the triangular pyramid structures connected to each other.

7. The soft sheet according to any one of claims 1 to 6, wherein A second ventilation layer and a third light-shielding layer are provided, wherein the second ventilation layer is located between the second light-shielding layer and the third light-shielding layer, and the third light-shielding layer is provided with a plurality of third ventilation holes. The second ventilation layer is an open-pore porous material layer, or a three-dimensional mesh structure layer, or a solid layer provided with second ventilation layer through holes connecting the second ventilation holes and the third ventilation holes.

8. A method for producing a light-shielding, air-permeable, soft sheet, characterized by comprising the steps of: The steps include: Create a digital 3D model of the aeration layer; Inputting the model into a 3D printer; Generate thin slice information; The material is heated and sprayed layer by layer, and then stacked up layer by layer to form a complete ventilation layer; Light curing; Post-processing; Heat curing; Light-shielding layers with ventilation holes are fixedly covered on both sides of the ventilation layer. The positions of the ventilation holes in different light-shielding layers are staggered to form a three-layer or five-layer structure according to needs.

9. A quilt, characterized by The soft sheet according to any one of claims 1 to 8 is used.

10. A fabric, characterized by The soft sheet according to any one of claims 1 to 8 is used.

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