An energy-saving transparent curtain fabric, its preparation method and application

Abstract

This application relates to the field of curtain technology, and discloses an energy-saving transparent curtain fabric, its preparation method, and its application. An energy-saving transparent curtain fabric includes warp yarns and weft yarns, both of which are covered yarns. The covered yarn includes a core yarn and a PVC covering layer covering the core yarn. The core yarn is black. The PVC covering layer comprises the following raw materials in weight fractions: 50-55 parts PVC, 22-25 parts plasticizer, 1-2 parts stabilizer, and 12.5-19.5 parts titanium dioxide. The preparation method of the energy-saving transparent curtain fabric includes the following steps: melting the raw materials of the PVC covering layer to form a melt, and extruding it from a die head; passing the core yarn through the die head, and allowing the extruded melt to cover the outer layer of the core yarn, cooling to obtain the covered yarn; weaving the covered yarn as warp and weft yarns to obtain the energy-saving transparent curtain fabric. The curtain fabric obtained by this application can achieve a high-definition transparent effect and has good energy-saving performance.

Description

Technical Field

[0001] This application relates to the field of curtain technology, and in particular to an energy-saving transparent curtain fabric, its preparation method, and its application. Background Technology

[0002] Sheer curtains are curtains that provide privacy while allowing a view of the outside scenery. The most prominent feature of sheer curtains is the presence of multiple perforations in the fabric, through which one can glimpse the view. However, sheer curtains currently on the market often suffer from low resolution; while they allow a view, they don't achieve a high-definition, clear perspective. Figure 1 As shown in b, the existing see-through curtains have a blurry view and poor visibility. Some see-through curtains use enlarged pores, which can improve the visibility to some extent, but still cannot change the blurriness and will result in poor light-blocking effect.

[0003] In addition, some dark-colored sheer curtains, while improving the view, have a low heat reflectivity when sunlight shines on them, failing to achieve energy-saving effects, especially in the hot summer when this defect is more prominent.

[0004] Therefore, there is an urgent need for a curtain that offers good visibility and is energy-efficient, in order to better meet the needs of users. Summary of the Invention

[0005] In order to solve at least one of the above-mentioned technical problems and develop a curtain fabric with high thermal reflectivity and high-definition transparency, this application provides an energy-saving transparent curtain fabric, its preparation method and application.

[0006] On one hand, this application provides an energy-saving, transparent curtain fabric, comprising warp yarns and weft yarns, wherein the warp yarns and weft yarns are interwoven to form a porous weave structure, and the porous structures are distributed in an array; both the warp yarns and the weft yarns are covered yarns, wherein the covered yarns include a core yarn and a PVC covering layer covering the core yarn, and the core yarn is black; the PVC covering layer comprises the following raw materials in weight fractions:

[0007]

[0008] The filler includes titanium dioxide.

[0009] By adopting the above technical solution, the covering thread of this application is light-colored, and the resulting curtain fabric can achieve a high-definition transparent effect, with good energy-saving effect, and can also better meet the diverse needs of the market. A specific proportion of titanium dioxide is added to the raw material of the PVC covering layer. Titanium dioxide has high whiteness, strong hiding power, and excellent coloring power. The PVC covering layer covers the black core thread, resulting in a light-colored curtain fabric with a heat reflectivity of not less than 69%, good energy-saving effect, and guaranteed high-definition transparent effect.

[0010] Insufficient titanium dioxide content can lead to poor energy-saving performance, while excessive titanium dioxide content can lead to poor visibility. This application uses a specific ratio of titanium dioxide to PVC to produce curtain fabric that has both high-definition visibility and good energy-saving performance.

[0011] The core wire of this application is black, and the sheathing layer is light-colored. A color difference is formed between the sheathing layer and the core wire. When visible light from outside shines on the fabric, the base of the fabric appears dark. The dark color, combined with the gaps, can prevent the edge patterns formed at the gaps from glare. This allows the external scenery to form several clear, arrayed pixels at the gaps. After the pixels are combined, a high-definition scene is formed, achieving a high-definition perspective effect.

[0012] Preferably, the PVC coating layer comprises the following raw materials in weight fractions:

[0013]

[0014] The titanium dioxide is rutile titanium dioxide.

[0015] By adopting the above technical solution, rutile titanium dioxide has excellent whiteness and good opacity, which makes the resulting curtain fabric appear light-colored overall. While ensuring the visibility effect, it also has excellent heat reflectivity and good energy-saving effect.

[0016] Optionally, the filler further includes wollastonite powder, and the mass ratio of the titanium dioxide to the wollastonite powder is (10-12):(4-6).

[0017] Preferably, the mass ratio of the titanium dioxide to the wollastonite powder is 11:5.

[0018] By adopting the above technical solution, this application combines titanium dioxide and wollastonite powder in a specific ratio, and the resulting curtain fabric is light-colored overall, which can not only ensure the effect of high-definition visibility, but also improve the heat reflectivity.

[0019] Optionally, the raw material for the PVC coating layer may also include at least one of disodium ethylenediaminetetraacetate and triethanolamine.

[0020] By adopting the above technical solution, this application adds at least one of disodium ethylenediaminetetraacetate and triethanolamine to the raw materials of the PVC coating layer, which can not only ensure that the curtain fabric achieves a high-definition transparent effect, but also effectively improve the heat reflectivity of the curtain fabric.

[0021] Optionally, the raw materials for the PVC coating layer also include disodium ethylenediaminetetraacetate and triethanolamine, and the mass ratio of disodium ethylenediaminetetraacetate to triethanolamine is (0.15-0.25):(0.05-0.15).

[0022] Preferably, the mass ratio of the disodium ethylenediaminetetraacetate to the triethanolamine is 0.2:0.1.

[0023] By adopting the above technical solution, this application simultaneously adds disodium ethylenediaminetetraacetate and triethanolamine to the raw materials of the PVC coating layer. Compared with adding disodium ethylenediaminetetraacetate or triethanolamine alone, the resulting curtain fabric has a higher heat reflectivity and better energy-saving effect.

[0024] Secondly, this application provides a method for preparing the aforementioned energy-saving transparent curtain fabric, comprising the following steps:

[0025] S1. The raw material for the PVC coating layer is fed into the extruder for melting treatment to form a melt, which is then extruded from the die head.

[0026] S2. Pass the core wire through the extruder head and coat the core wire with the melt extruded in step S1. After cooling with cooling water, a coated wire is obtained, wherein the melt forms a PVC coating layer after cooling.

[0027] S3. The covering yarn obtained in step S2 is used as warp and weft yarns to weave a porous weave structure, thereby producing the energy-saving transparent curtain fabric.

[0028] Optionally, in step S1, the set temperature of the extruder is: 150-160℃ for zone 1, 160-170℃ for zone 2, 160-170℃ for zone 3, 170-180℃ for zone 4, 170-180℃ for zone 5, and the die head temperature is 170-180℃.

[0029] Optionally, in step S2, the mass ratio of the core wire to the PVC sheath is 2.5:7.5.

[0030] Thirdly, this application provides the application of the above-mentioned energy-saving transparent curtain fabric in Roman blinds, vertical blinds, skylight blinds or roller blinds.

[0031] By adopting the above technical solution, the curtain fabric provided in this application can be used to make Roman blinds, vertical blinds, skylight blinds and roller blinds, etc., and has a wide range of applications.

[0032] In summary, the present invention has at least one of the following beneficial technical effects:

[0033] 1. This application uses light-colored covering thread, and the resulting curtain fabric can achieve a high-definition transparent effect and has good energy-saving effect, which can better meet the diverse needs of the market.

[0034] 2. A specific proportion of titanium dioxide is added to the raw materials of the PVC coating. Titanium dioxide has high whiteness, strong hiding power and excellent coloring power. The resulting curtain fabric has an overall light color and a heat reflectivity of not less than 69%. Attached Figure Description

[0035] Figure 1 a is a perspective view of the energy-saving perspective curtain fabric prepared in Example 2;

[0036] Figure 1 b is a perspective view of the existing sheer curtain fabric;

[0037] Figure 2 The image shows the energy-saving transparent curtain fabric prepared in Example 2. Detailed Implementation

[0038] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0039] This application designs an energy-saving transparent curtain fabric, including warp yarns and weft yarns, wherein the warp yarns and the weft yarns are interwoven to form a woven structure with pores, and the pores are distributed in an array.

[0040] Both the warp yarn and the weft yarn are covered yarns, and the covered yarn includes a core yarn and a PVC covering layer covering the core yarn. The core yarn is black.

[0041] The PVC coating layer comprises the following raw materials by weight fraction:

[0042]

[0043] The filler includes titanium dioxide.

[0044] The energy-saving transparent curtain fabric of this application is prepared by the following method, including the following steps:

[0045] S1. The raw material for the PVC coating layer is fed into the extruder for melting treatment to form a melt, which is then extruded from the die head.

[0046] S2. Pass the core wire through the extruder head and coat the core wire with the melt extruded in step S1. After cooling with cooling water, a coated wire is obtained, wherein the melt forms a PVC coating layer after cooling.

[0047] S3. The covering yarn obtained in step S2 is used as warp and weft yarns to weave a porous weave structure, thereby producing the energy-saving transparent curtain fabric.

[0048] The energy-saving transparent curtain fabric of this application can be used in Roman blinds, vertical blinds, skylight blinds or roller blinds.

[0049] Currently, the transparent curtains on the market either have poor visibility or are not energy-efficient, making it difficult to meet the diverse needs of the market. Based on the diverse needs of the market, the inventor has developed a high-definition transparent curtain fabric with a light overall color, which has good energy-saving effect and can better meet the diverse needs of the market.

[0050] The PVC coating material of this application contains a specific proportion of titanium dioxide. Titanium dioxide has high whiteness, strong hiding power, and excellent coloring ability, resulting in a light-colored curtain fabric with a heat reflectivity of no less than 69%, thus achieving good energy-saving performance. The core wire is black, so when visible light shines on the fabric surface, the base of the fabric appears dark. The dark color, combined with the pores, achieves a high-definition transparent effect.

[0051] Raw material description

[0052] PVC, Formosa Plastics Industrial (Ningbo) Co., Ltd., extrusion grade PVC;

[0053] Plasticizers, PVC plasticizers, Xingtianwai Chemical (Shanghai) Co., Ltd.;

[0054] Stabilizer, calcium-zinc stabilizer, BASF Chemical Co., Ltd.;

[0055] Rutile titanium dioxide, TiO2 content ≥96%, Chemours Titanium Dioxide Technology;

[0056] Flame retardant, antimony trioxide, CAS number 1309-64-4, purity ≥99.5%;

[0057] Wollastonite powder, produced by Xinyu Southern Wollastonite Co., Ltd., is a white needle-like powder with an aspect ratio of 5:1 and a particle size of 6000 mesh.

[0058] Disodium ethylenediaminetetraacetate (EDTA), CAS No. 139-33-3, has the following molecular structure:

[0059]

[0060] Triethanolamine, CAS number 102-71-6, has the following molecular structure:

[0061]

[0062] Antioxidant 1010, CAS No. 6683-19-8, Molecular Formula C 73 H108 O 12 ;

[0063] UV absorber UV-531, CAS No. 1843-05-6, molecular formula C 21 H 26 O3.

[0064] Example 1

[0065] A method for preparing a sheer curtain fabric includes the following steps:

[0066] S1. The raw material for the PVC coating layer is fed into a screw extruder for melting treatment to form a melt, which is then extruded from the die head.

[0067] S2. Pass the core wire through the extruder head and coat the core wire with the melt extruded in step S1. After cooling with cold water, a coated wire is obtained. The melt forms a PVC coating layer after cooling.

[0068] S3. The covering yarn obtained in step S2 is used as warp and weft yarns to weave a porous weave structure, thus producing a see-through curtain fabric.

[0069] In step S1, the raw materials and their amounts for the PVC coating layer are shown in Table 1 below. The average particle size of the rutile titanium dioxide is 0.4 μm. The additives include antioxidant 1010 and ultraviolet absorber UV-531, and the mass ratio of antioxidant 1010 to ultraviolet absorber UV-531 is 1:1. The set temperatures of the screw extruder are: Zone 1 150-160℃, Zone 2 160-170℃, Zone 3 160-170℃, Zone 4 170-180℃, Zone 5 170-180℃, the die head temperature is 170-180℃, and the screw speed is 150 rpm.

[0070] In step S2, the core wire is made of black alkali-free continuous glass fiber yarn, G150 series, with a single filament diameter of 9um and a core wire linear density of 34tex; the diameter of the covering wire is 0.32mm, and the ratio of the mass of the core wire to the mass of the PVC covering layer in the covering wire is 2.5:7.5.

[0071] In step S3, a double-warp, double-weft weave is used during weaving. The warp yarn density is 48 yarns / inch, the weft yarn density is 48 yarns / inch, the porosity of the sheer curtain fabric is 5%, the pores are distributed in an array, and the average pore diameter is 0.24 mm. The thickness of the sheer curtain fabric is 0.53 mm, ISO 2286-3-2016. The weight of the sheer curtain fabric per square meter is 443 g, ISO 2286-2-2016.

[0072] Examples 2-5

[0073] The difference between Examples 2-5 and Example 1 is that the amount of raw materials used in step S1 is different, as shown in Table 1 below.

[0074] Table 1. Raw materials and dosage of PVC coating (unit: kg)

[0075] PVC plasticizer stabilizer Rutile titanium dioxide Flame retardant additive Example 1 55 22 1 16 5 1 Example 2 53.5 24 1.5 16 4.5 0.5 Example 3 50 25 2 16 5.5 1.5 Example 4 53.5 24 1.5 12.5 4.5 0.5 Example 5 53.5 24 1.5 19.5 4.5 0.5

[0076] Comparative Examples 1-2

[0077] Comparative Example 1

[0078] The difference between this comparative example and Example 2 is that no rutile titanium dioxide was added.

[0079] Comparative Example 2

[0080] The difference between this comparative example and Example 2 is that wollastonite powder of equal mass is used instead of rutile titanium dioxide.

[0081] Performance Test 1

[0082] The curtain fabrics prepared in Examples 1-5 and Comparative Examples 1-2 were subjected to thermal reflectivity performance tests, and the test results are shown in Table 2 below.

[0083] Among them, thermal reflectivity: ASHRAE Standard 74-1988 (Method of Measuring Solar-Optical Properties of Materials).

[0084] Table 2 Results of thermal reflectivity test

[0085]

[0086]

[0087] As shown in Table 2, the thermal reflectivity of the curtain fabric prepared in this application is not less than 69%, exhibiting good thermal reflectivity and energy-saving effect. In Examples 1-3, the amount of rutile titanium dioxide remained constant, and the influence of changes in the amount of other components on the thermal reflectivity of the curtain fabric was investigated. Among these, Example 2 was the preferred embodiment. Examples 4-5 were based on Example 2, but the amount of rutile titanium dioxide was changed, resulting in certain changes in the thermal reflectivity of the prepared curtain fabric. The difference between Comparative Example 1 and Example 2 is that no rutile titanium dioxide was added, and the thermal reflectivity of the curtain fabric prepared in Comparative Example 1 was much lower than that in Example 2. The difference between Comparative Example 2 and Example 2 is that an equal amount of wollastonite powder was used to replace the rutile titanium dioxide, and the thermal reflectivity of the curtain fabric prepared in Comparative Example 2 was lower.

[0088] Figure 1a is a perspective view of the energy-saving perspective curtain fabric prepared in Example 2. Figure 1 As can be seen from this, the curtain fabric produced in this application has a high-definition transparent effect.

[0089] Figure 2 The image shows the energy-saving transparent curtain fabric prepared in Example 2.

[0090] This application produces a curtain fabric that still has good visibility without increasing the porosity, and also has good energy-saving effect.

[0091] Examples 6-8

[0092] The difference between Examples 6-8 and Example 2 is that they also include wollastonite powder, and the sum of the mass of rutile titanium dioxide and the mass of wollastonite powder in Examples 6-8 is the same as the mass of rutile titanium dioxide in Example 2, as shown in Table 3 below.

[0093] Table 3. Dosage of rutile titanium dioxide and wollastonite powder (unit: kg)

[0094] Rutile titanium dioxide Wollastonite powder Example 2 16 / Example 6 10 6 Example 7 11 5 Example 8 12 4

[0095] Performance Test 2

[0096] The curtain fabrics prepared in Examples 6 to 8 were subjected to heat reflectivity performance tests, and the test methods were the same as those in Performance Test 1. The test results are shown in Table 4 below.

[0097] Table 4 Results of Thermal Reflectivity Test

[0098] Thermal reflectivity (%) Example 2 72 Example 6 73 Example 7 75 Example 8 74

[0099] As can be seen from the test results in Table 4, the thermal reflectivity of the curtain fabrics prepared in Examples 6 to 8 is better than that in Example 2. This shows that partially replacing rutile titanium dioxide with wollastonite powder can effectively improve the thermal reflectivity of the curtain fabric. The amount of wollastonite powder and titanium dioxide also affects the thermal reflectivity of the curtain fabric. Among them, Example 7 is the preferred embodiment.

[0100] Examples 9-13

[0101] Example 9

[0102] The difference between this embodiment and Embodiment 7 is that the raw material for the PVC coating layer also includes 0.3 kg of disodium ethylenediaminetetraacetate.

[0103] Example 10

[0104] The difference between this embodiment and embodiment 7 is that the raw material of the PVC coating layer also includes 0.3 kg of triethanolamine.

[0105] Examples 11-13

[0106] The difference between Examples 11-13 and Example 7 is that the raw materials for the PVC coating layer also include disodium ethylenediaminetetraacetate and triethanolamine. The amounts of disodium ethylenediaminetetraacetate and triethanolamine are shown in Table 5 below.

[0107] Table 5. Dosage of disodium EDTA and triethanolamine (unit: kg)

[0108] Disodium ethylenediaminetetraacetate Triethanolamine Example 7 / / Example 9 0.3 / Example 10 / 0.3 Example 11 0.15 0.15 Example 12 0.2 0.1 Example 13 0.25 0.05

[0109] Performance Test 3

[0110] The curtain fabrics prepared in Examples 9 to 13 were subjected to thermal reflectivity performance tests, and the test methods were the same as those in Performance Test 1. The test results are shown in Table 6 below.

[0111] Table 6 Results of Thermal Reflectivity Test

[0112]

[0113]

[0114] As can be seen from the test results in Table 6, in Examples 9 and 10, the thermal reflectivity of the curtain fabrics prepared by adding one of ethylenediaminetetraacetic acid disodium salt and triethanolamine was improved compared with that in Example 7. In Examples 11 to 13, the thermal reflectivity of the curtain fabrics prepared by adding ethylenediaminetetraacetic acid disodium salt and triethanolamine was improved compared with that in Example 7, and was further improved compared with Examples 9 and 10.

[0115] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An energy-saving, transparent curtain fabric, characterized in that, It includes warp yarns and weft yarns, which are interwoven to form a woven structure with pores, and the pores are distributed in an array; Both the warp yarn and the weft yarn are covered yarns, and the covered yarn includes a core yarn and a PVC covering layer covering the core yarn. The core yarn is black. The PVC coating layer comprises the following raw materials by weight: 53.5 kg PVC, 24 kg plasticizer, 1.5 kg stabilizer, 4.5 kg flame retardant, 0.5 kg additives, 11 kg rutile titanium dioxide, 5 kg wollastonite powder, 0.2 kg disodium EDTA, and 0.1 kg triethanolamine; the additives include antioxidant 1010 and ultraviolet absorber UV-531, and the mass ratio of antioxidant 1010 to ultraviolet absorber UV-531 is 1:

1.

2. A method for preparing the energy-saving transparent curtain fabric as described in claim 1, characterized in that, Includes the following steps: S1. The raw material for the PVC coating layer is fed into the extruder for melting treatment to form a melt, which is then extruded from the die head. S2. Pass the core wire through the extruder head and coat the core wire with the melt extruded in step S1. After cooling with cooling water, a coated wire is obtained, wherein the melt forms a PVC coating layer after cooling. S3. The covering yarn obtained in step S2 is used as warp and weft yarns to weave a porous weave structure, thereby producing the energy-saving transparent curtain fabric.

3. The method for preparing the energy-saving transparent curtain fabric according to claim 2, characterized in that, In step S1, the extruder is set to the following temperatures: Zone 1 150-160℃, Zone 2 160-170℃, Zone 3 160-170℃, Zone 4 170-180℃, Zone 5 170-180℃, and the die head temperature is 170-180℃.

4. The method for preparing the energy-saving transparent curtain fabric according to claim 2, characterized in that, In step S2, the mass ratio of the core wire to the PVC sheath is 2.5:7.

5.

5. The application of the energy-saving transparent curtain fabric as described in claim 1 in Roman blinds, vertical blinds, skylight blinds or roller blinds.

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