A printed patterned air space and method of making the same
By combining a multi-layered structure with specific materials, the problems of easy puncture and poor salt water corrosion resistance of spatial fabric during processing have been solved, achieving higher mechanical properties and weather resistance, and improving product quality and service life.
Patent Information
- Application Number
- CN202410054324.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2044-01-12
AI Technical Summary
The existing spatial fabric is easily punctured during processing, resulting in poor mechanical properties. Furthermore, the toughening agent causes the PVC membrane structure to become loose, affecting its resistance to salt water corrosion.
It adopts a multi-layer structure including a protective layer, a decorative layer, a substrate layer and a bottom film. The protective layer is composed of PVC powder, modified magnesium hydroxide, flax fiber and stabilizer, which are tightly connected by adhesive and polyester filament stitching to improve the barrier and mechanical properties of the protective layer.
It improves the mechanical properties and salt water corrosion resistance of the spatial fabric, enhances the elongation at break and tensile strength of the protective layer, and extends the service life of the applied products.
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Figure CN117944340B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of space cloth, in particular to a printed pattern air-tight space cloth and a preparation method thereof. BACKGROUND
[0002] With the continuous improvement of living standards, the application of space cloth in daily life is becoming more and more widely, such as being applied in surfboards, kayaks and yoga mats and other products, and the demand for these products gradually increases, so the demand for space cloth also gradually increases.
[0003] The space cloth is a structure formed by connecting two layers of net cloth through the upper and lower stringing and parallel walking method of the middle wire. The existing space cloth is embossed on the surface by high temperature in the processing process, so that the space cloth is more beautiful. When the space cloth is applied in surfboards and other products, a PVC film needs to be pasted on the surface of the space cloth, and a toughening agent needs to be added to make the PVC film have good softness. However, the toughening agent can easily cause the structure of the PVC film to become loose, thereby affecting the salt water corrosion resistance of the space cloth, and the mechanical properties of the space cloth are poor, which can easily be pressed through in the process of embossing on the surface of the space cloth, thereby affecting the performance of the space cloth. SUMMARY
[0004] In order to improve the mechanical properties and salt water corrosion resistance of the space cloth, the present application provides a printed pattern air-tight space cloth and a preparation method thereof.
[0005] In a first aspect, the present application provides a printed pattern air-tight space cloth using the following technical solution:
[0006] A printed pattern air-tight space cloth, comprising a space cloth body and a bottom film, the bottom film is bonded to the space cloth body; comprising a protective layer, a decorative layer and a substrate layer; the substrate layer is bonded to the side of the space cloth body away from the bottom film; the decorative layer is bonded to the side of the substrate layer away from the decorative layer; the protective layer is bonded to the side of the decorative layer away from the substrate layer, the protective layer is made of the following weight parts of raw materials: PVC powder 80-120 parts; flax fiber 2-10 parts; modified magnesium hydroxide 2-8 parts; toughening agent 1-3 parts; stabilizer 1-2 parts;
[0007] The modified magnesium hydroxide is made of the following raw materials: magnesium hydroxide, aminopropyl octyl silicone resin, isopropyl alcohol and titanium white.
[0008] The bottom film and the substrate layer bond the two sides of the space cloth body, a plurality of polyester filaments are sewn between the space cloth bodies, the surface of the decorative layer is pressed to have a pattern effect with concave-convex feeling, the diversity of the air-tight space cloth is increased, the market demand is met, the adhesive glue is used to bond between the layers, the layers are tightly connected, the PVC powder is used as the raw material of the protective layer, a small amount of filler is added, the loose structure of the protective layer is filled, the barrier property and the mechanical property of the protective layer are improved, the protective layer covers the surface of the decorative layer and protects the pattern on the decorative layer and the space cloth body, the flax fiber and the modified magnesium hydroxide are added into the raw material of the protective layer as fillers, the mechanical property of the protective layer is improved, the protective layer has good elongation at break, the quality of the printed pattern air-tight space cloth is improved, the decorative layer and the space cloth body are protected, and the application range of the space cloth body is improved.
[0009] Preferably, the preparation method of the modified magnesium hydroxide comprises the following steps: mixing and stirring 5-15 parts by weight of aminopropyl octyl silicone resin with 500-1500 parts by weight of isopropyl alcohol, adding 25-45 parts by weight of magnesium hydroxide and 10-20 parts by weight of titanium white powder, uniformly mixing under heating, cooling to room temperature, and then performing suction filtration, washing, drying and grinding to obtain the modified magnesium hydroxide.
[0010] Through the above technical scheme, the magnesium hydroxide is modified by mixing with titanium white powder and then modified by aminopropyl octyl silicone resin, the aminopropyl octyl silicone resin contains amino and alkoxy groups, the dispersibility of the magnesium hydroxide in the organic polymer system is improved, and then the dispersibility of the modified magnesium hydroxide in the protective layer component is improved, the tensile strength and the elongation at break of the protective layer are improved, the titanium white powder has good salt water corrosion resistance, can resist the chemical corrosion medium of seawater, and if the printed pattern air-tight space cloth is applied to a surfboard, the service life of the surfboard can be effectively prolonged.
[0011] Preferably, the weight ratio of the aminopropyl octyl silicone resin, the magnesium hydroxide and the titanium white powder is 1:(3.6-4.2):(1.2-1.5).
[0012] Through the above technical scheme, when the weight ratio of the aminopropyl octyl silicone resin, the magnesium hydroxide and the titanium white powder is specific, the mechanical property of the protective layer can be further improved by the cooperation of the three, the titanium white powder is coated by the aminopropyl octyl silicone resin and the magnesium hydroxide to form a uniform and dense film layer, the stability of the modified magnesium hydroxide is improved, and then the protective layer has good weather resistance.
[0013] Preferably, the flax fiber is a modified flax fiber, and the modified flax fiber is prepared by stirring 20-40 parts by weight of flax fiber with 100-150 parts by weight of a mixed solution containing urea and sodium hydroxide, then adding 6-9 parts by weight of montmorillonite, 12-24 parts by weight of sodium alginate and 5-15 parts by weight of calcium carbonate, stirring until uniform, then adding 1-3 parts by weight of hydrochloric acid and 2-6 parts by weight of calcium chloride, stirring, soaking, washing until neutral, and drying to obtain the modified flax fiber.
[0014] By adopting the technical scheme, the flax fiber is pretreated, the flax fiber is mixed with calcium carbonate and sodium alginate, and then montmorillonite is added, which not only increases the mechanical properties of the flax fiber, but also improves the dispersion of the components, so that the modified flax fiber surface is bonded with PVC powder, and the mechanical properties of the protective layer are greatly improved, and the elongation at break and tensile strength of the protective layer are enhanced; the montmorillonite can adsorb and fix the salt, the sodium alginate has a certain stability in salt water, and the two cooperate with each other to make the calcium ions attached to the surface of the flax fiber not easy to be eroded, so as to reduce the corrosion of the salt water to the space cloth body; and the space cloth body and the decorative layer are better protected.
[0015] Preferably, the weight ratio of the flax fiber, the montmorillonite and the calcium carbonate is (3.2-3.6):(0.64-0.72):1.
[0016] By adopting the technical scheme, when the flax fiber, the montmorillonite and the calcium carbonate are in a specific weight ratio, the three produce a synergistic effect, which can improve the mechanical properties of the protective layer and further improve the mechanical properties of the space cloth.
[0017] Preferably, the weight ratio of the modified magnesium hydroxide, the modified flax fiber and the PVC powder is (0.06-0.07):(0.08-0.09):1.
[0018] By adopting the technical scheme, when the modified magnesium hydroxide, the modified flax fiber and the PVC powder are in a specific weight ratio, the three cooperate with each other to improve the mechanical properties of the protective layer, and also make the protective layer have good weather resistance, and further improve the quality of the space cloth.
[0019] Preferably, the toughening agent is one of ethylene-vinyl acetate copolymer and styrene-butadiene-styrene copolymer.
[0020] By adopting the technical scheme, using a suitable toughening agent can improve the toughness of the protective layer, so that the protective layer of the air-tight space cloth is not easy to be pressed through, and further protects the embossing of the decorative layer.
[0021] Preferably, the stabilizer is barium 2-ethylhexanoate.
[0022] By adopting the technical scheme, the appropriate stabilizer is selected to uniformly disperse the raw materials of the protective layer, thereby improving the mechanical properties of the protective layer.
[0023] In a second aspect, the application provides a preparation method of the printed pattern air-tight space cloth, which adopts the following technical scheme:
[0024] The preparation method of the printed pattern air-tight space cloth comprises the following steps:
[0025] S1. After weighing each component, the PVC powder, flax fiber and modified magnesium hydroxide are mixed and stirred, then the stabilizer and toughening agent are added, and mixing and extrusion are performed, followed by calendering, traction and cooling to form a protective layer;
[0026] S2. The bottom film and the base sheet layer are respectively bonded on both sides of the space cloth body, and then dried; the decorative layer is bonded on the base sheet layer, and then embossed to form a pattern; the protective layer is bonded on the surface of the decorative layer, and then dried to obtain the printed pattern air-tight space cloth.
[0027] By adopting the technical scheme, the quality of the space cloth can be ensured after mixing each component by using a simple process, and the mechanical properties of the protective layer of the space cloth are improved.
[0028] Preferably, the drying temperature is 145-185℃.
[0029] By adopting the technical scheme, controlling the drying temperature can make the layers of the space cloth tightly bonded with each other, thereby obtaining the space cloth with better quality.
[0030] In summary, the application has the following beneficial technical effects:
[0031] 1. By adopting the technical scheme, the bottom film and the base sheet layer bond the two sides of the space cloth body, a plurality of polyester filaments are sewn between the space cloth bodies, the surface of the decorative layer is embossed to have a concave-convex pattern effect, the diversity of the air-tight space cloth is increased, and the market demand is met; the adhesive glue is used to bond between the layers, so that the layers are tightly connected, and the application uses PVC powder as the raw material of the protective layer, a small amount of filler is added to fill the loose structure of the protective layer, the barrier property and the mechanical properties of the protective layer are improved, the decorative layer is protected by the protective layer covering the surface of the decorative layer, and the pattern on the decorative layer and the space cloth body are protected; by adding flax fiber and modified magnesium hydroxide as fillers in the raw material of the protective layer, the mechanical properties of the protective layer are improved, the protective layer has good elongation at break, the quality of the printed pattern air-tight space cloth is improved, the decorative layer and the space cloth body are protected, and the application range of the space cloth body is improved.
[0032] 2. The magnesium hydroxide mixed with titanium white powder is modified by an aminopropyl octyl silicone resin containing amino and alkoxy groups, which improves the dispersibility of the magnesium hydroxide in the organic polymer system, and further improves the dispersibility of the modified magnesium hydroxide in the protective layer component, so that the tensile strength and elongation at break of the protective layer are improved. BRIEF DESCRIPTION OF DRAWINGS
[0033] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.
[0034] BRIEF DESCRIPTION OF DRAWINGS:
[0035] 1, space cloth body; 2, bottom film; 3, protective layer; 4, decorative layer; 5, base sheet layer. DETAILED DESCRIPTION
[0036] The present application will be further described in detail below in combination with examples and comparative examples.
[0037] Example
[0038] Example 1
[0039] A printed pattern air-tight space cloth includes a space cloth body and a bottom film, the bottom film is a single-color PVC film, the space cloth body and the bottom film are bonded to each other, the side of the space cloth body away from the bottom film is bonded with a base sheet layer, the base sheet layer is a PVC film; the side of the base sheet layer away from the space cloth body is bonded with a decorative layer, the decorative layer is printed with embossed lines to improve the diversity of the space cloth; the side of the decorative layer away from the base sheet layer is bonded with a protective layer, the protective layer plays a protective role for the space cloth.
[0040] A preparation method of a printed pattern air-tight space cloth includes the following steps:
[0041] S1. 8 kg of PVC powder, 0.2 kg of flax fiber and 0.2 kg of modified magnesium hydroxide are put into a high-speed stirrer and mixed and stirred at a temperature of 80℃ for 5 min, then transferred to a banbury mixer, 0.1 kg of barium 2-ethylhexanoate stabilizer and 0.1 kg of ethylene-vinyl acetate copolymer toughening agent are added, and mixing is carried out at a temperature of 150℃, then extruded through a screw extruder, then transferred to a four-roll calender to calender into a film, then cooled to room temperature after pulling, to obtain a protective layer;
[0042] S2. The bottom film and the base sheet layer are respectively bonded on both sides of the space cloth body and dried at a temperature of 145℃; the decorative layer is bonded on the base sheet layer, and the decorative layer is embossed by a gravure printing machine to form lines; the protective layer is bonded on the surface of the decorative layer and dried at a temperature of 185℃, to obtain a printed pattern air-tight space cloth.
[0043] The PVC powder is selected from Shandong Ousheng Chemical Co., Ltd., and the brand is S-700; the ethylene-vinyl acetate copolymer is selected from Exxon Mobil, and the brand is UL7520.
[0044] The preparation method of the modified magnesium hydroxide is as follows: 5 g of aminopropyl octyl silicone resin is mixed with 500 g of isopropyl alcohol at a temperature of 65 DEG C and stirred for 2 min, then 25 g of magnesium hydroxide and 10 g of titanium white powder are uniformly mixed at 65 DEG C for 8 h, cooled to room temperature, filtered, washed with water, dried at a temperature of 80 DEG C, and ground to a particle size of 70 microns, to obtain the modified magnesium hydroxide.
[0045] Example 2
[0046] A preparation method of a printed pattern air-tight space cloth comprises the following steps:
[0047] S1. 12 kg of PVC powder, 1 kg of flax fiber and 0.8 kg of modified magnesium hydroxide are put into a high-speed mixer and mixed and stirred at a temperature of 80 DEG C for 5 min, then transferred to an internal mixer, 0.2 kg of barium 2-ethylhexanoate stabilizer and 0.3 kg of styrene-butadiene-styrene copolymer toughening agent are added, and mixing is carried out at a temperature of 150 DEG C, then extruded through a screw extruder, transferred to a four-roll calender to calender into a film, and cooled and formed to room temperature after pulling, to obtain a protective layer;
[0048] S2. The bottom film and the base layer are respectively bonded on both sides of the space cloth body, and dried at a temperature of 145 DEG C; the decorative layer is bonded on the base layer, and the decorative layer is embossed to form patterns by using a gravure printing machine; the protective layer is bonded on the surface of the decorative layer, and dried at a temperature of 185 DEG C, to obtain a printed pattern air-tight space cloth.
[0049] The styrene-butadiene-styrene copolymer is selected from Dongguan Yingxiang Plastic Raw Material Co., Ltd., and the brand is 3206.
[0050] The preparation method of the modified magnesium hydroxide is as follows: 5 g of aminopropyl octyl silicone resin is mixed with 500 g of isopropyl alcohol at a temperature of 65 DEG C and stirred for 2 min, then 25 g of magnesium hydroxide and 10 g of titanium white powder are uniformly mixed at 65 DEG C for 8 h, cooled to room temperature, filtered, washed with water, dried at a temperature of 80 DEG C, and ground to a particle size of 70 microns, to obtain the modified magnesium hydroxide.
[0051] Example 3
[0052] A preparation method of a printed pattern air-tight space cloth comprises the following steps:
[0053] S1. Put 10 kg of PVC powder, 0.6 kg of flax fiber and 0.5 kg of modified magnesium hydroxide into a high-speed blender, mix and stir for 5 min at a temperature of 80℃, then transfer to an internal mixer, add 0.15 kg of barium 2-ethylhexanoate stabilizer and 0.2 kg of ethylene-vinyl acetate copolymer toughening agent, mix at a temperature of 150℃, then extrude through a screw extruder, transfer to a four-roll calender to calender into a film, then cool to room temperature after pulling, to obtain a protective layer;
[0054] S2. Bond the base film and the substrate layer on both sides of the space cloth body, dry at a temperature of 145℃; bond the decorative layer to the substrate layer, use a gravure printing machine to emboss the decorative layer to form lines; bond the protective layer to the surface of the decorative layer, dry at a temperature of 185℃, to obtain a printed pattern air-tight space cloth.
[0055] The PVC powder is selected from Shandong Ousheng Chemical Co., Ltd., with a brand of S-700; the ethylene-vinyl acetate copolymer is selected from ExxonMobil, with a brand of UL7520.
[0056] The preparation method of the modified magnesium hydroxide is as follows: mix 5 g of aminopropyl octyl silicone resin with 500 g of isopropyl alcohol at a temperature of 65℃ for 2 min, then add 25 g of magnesium hydroxide and 10 g of titanium white powder, mix uniformly at 65℃ for 8 h, cool to room temperature, then filter, wash with water, dry at a temperature of 80℃, and grind to a particle size of 70 μm, to obtain the modified magnesium hydroxide.
[0057] Example 4
[0058] A preparation method of a printed pattern air-tight space cloth, which is different from example 3 in that the preparation method of the modified magnesium hydroxide is as follows: mix 15 g of aminopropyl octyl silicone resin with 1500 g of isopropyl alcohol at a temperature of 65℃ for 2 min, then add 45 g of magnesium hydroxide and 20 g of titanium white powder, mix uniformly at 65℃ for 8 h, cool to room temperature, then filter, wash with water, dry at a temperature of 80℃, and grind to a particle size of 70 μm, to obtain the modified magnesium hydroxide.
[0059] Example 5
[0060] A preparation method of a printed pattern air-tight space cloth, which is different from example 3 in that, in the process of preparing the modified magnesium hydroxide, the input amount of aminopropyl octyl silicone resin is 10 g, the input amount of magnesium hydroxide is 36 g, and the input amount of titanium white powder is 12 g.
[0061] Example 6
[0062] A preparation method of the printed pattern airtight space cloth, different from example 3 is that in the process of preparing the modified magnesium hydroxide, the input amount of the aminopropyl octyl silicone resin is 10 g, the input amount of the magnesium hydroxide is 42 g, and the input amount of the titanium white powder is 15 g.
[0063] Example 7
[0064] A preparation method of the printed pattern airtight space cloth, different from example 6 is that the flax fiber is replaced by an equal amount of modified flax fiber, wherein the preparation method of the modified flax fiber is that 20 g of flax fiber is mixed with 100 g of a mixed solution containing 7% urea and 12% sodium hydroxide for 2 h, 3 g of montmorillonite, 12 g of sodium alginate and 5 g of calcium carbonate are stirred uniformly for 10 min, 1 g of hydrochloric acid and 2 g of calcium chloride are mixed and stirred for 2 h, soaked for 24 h, washed to neutral, and dried in an oven for 12 h to obtain the modified flax fiber.
[0065] Example 8
[0066] A preparation method of the printed pattern airtight space cloth, different from example 6 is that the flax fiber is replaced by an equal amount of modified flax fiber, wherein the preparation method of the modified flax fiber is that 40 g of flax fiber is mixed with 150 g of a mixed solution containing 7% urea and 12% sodium hydroxide for 2 h, 9 g of montmorillonite, 24 g of sodium alginate and 15 g of calcium carbonate are stirred uniformly for 10 min, 3 g of hydrochloric acid and 6 g of calcium chloride are mixed and stirred for 2 h, soaked for 24 h, washed to neutral, and dried in an oven for 12 h to obtain the modified flax fiber.
[0067] Example 9
[0068] A preparation method of the printed pattern airtight space cloth, different from example 8 is that in the process of preparing the modified flax fiber, the input amount of the flax fiber is 32 g, the input amount of the montmorillonite is 6.4 g, and the input amount of the calcium carbonate is 10 g.
[0069] Example 10
[0070] A preparation method of the printed pattern airtight space cloth, different from example 8 is that in the process of preparing the modified flax fiber, the input amount of the flax fiber is 36 g, the input amount of the montmorillonite is 7.2 g, and the input amount of the calcium carbonate is 10 g.
[0071] Example 11
[0072] A preparation method of the printed pattern airtight space cloth, different from example 10 is that the input amount of the modified magnesium hydroxide is 0.6 kg, the input amount of the modified flax fiber is 0.8 kg, and the input amount of the PVC powder is 10 kg.
[0073] Example 12
[0074] A method for preparing a printed pattern airtight space cloth, different from example 10 is that the input amount of modified magnesium hydroxide is 0.7 kg, the input amount of modified flax fiber is 0.9 kg, and the input amount of PVC powder is 10 kg.
[0075] Comparative Example
[0076] Comparative Example 1
[0077] A method for preparing a printed pattern airtight space cloth, different from example 3 is that the modified magnesium hydroxide is replaced by magnesium hydroxide in equal amount.
[0078] Comparative Example 2
[0079] A method for preparing a printed pattern airtight space cloth, different from example 3 is that the modified magnesium hydroxide is replaced by aluminum hydroxide in equal amount.
[0080] Comparative Example 3
[0081] A method for preparing a printed pattern airtight space cloth, different from example 3 is that the modified magnesium hydroxide is replaced by diatomite in equal amount.
[0082] Comparative Example 4
[0083] A method for preparing a printed pattern airtight space cloth, different from example 3 is that the flax fiber is replaced by butadiene styrene rubber in equal amount.
[0084] Performance detection test:
[0085] Mechanical property test: according to GB / T 1040-2006, the elongation at break and tensile strength of the protective layer prepared in examples 1-12 and comparative examples 1-4 of the application are tested.
[0086] Weather resistance: according to GB251 rating, 5 is the best (basically no color change);
[0087] Salt water corrosion resistance test: the protective layer prepared in examples 1-12 and comparative examples 1-4 is put into a sealed constant temperature box, high concentration salt water is atomized and sprayed onto the protective layer, and the weight loss rate of the protective layer is tested, the lower the weight loss rate, the better the salt water corrosion resistance.
[0088]
[0089]
[0090] According to the data comparison of the examples 1-3 and the comparative examples 1-4, it can be concluded that by adding flax fiber and modified magnesium hydroxide in the raw material of the protective layer, the mechanical properties of the protective layer can be improved, the protective layer has good elongation at break, and the quality of the printed pattern air space cloth is improved, and the decorative layer and the space cloth body are protected.
[0091] According to the data comparison of the examples 3-6, it can be concluded that after the magnesium hydroxide mixed with titanium dioxide is modified by the amino propyl octyl silicone resin, the amino propyl octyl silicone resin contains amino and alkoxy groups, which improves the dispersibility of the magnesium hydroxide in the organic polymer system, and further improves the dispersibility of the modified magnesium hydroxide in the protective layer component, so that the tensile strength and elongation at break of the protective layer are improved.
[0092] According to the data comparison of the examples 6-10, it can be concluded that the flax fiber is pretreated, the flax fiber is mixed with calcium carbonate and sodium alginate, and then the montmorillonite is added, which not only improves the mechanical properties of the flax fiber, but also improves the dispersibility of the component, so that the modified flax fiber surface is bonded with PVC powder, and the mechanical properties of the protective layer are greatly improved, the elongation at break and tensile strength of the protective layer are improved, and the space cloth body and the decorative layer are better protected.
[0093] According to the data comparison of the examples 10-12, it can be concluded that when the modified magnesium hydroxide, the modified flax fiber and the PVC powder are in a specific weight ratio, the three cooperate with each other to improve the mechanical properties of the protective layer, and the protective layer also has good weather resistance, and the quality of the space cloth is improved.
[0094] The specific examples are only an explanation of the present application, and are not a limitation of the present application. Those skilled in the art can make modifications to the present examples without creative contribution after reading the present specification, but as long as the modifications are within the scope of the claims of the present application, they are protected by the patent law.
Claims
1. A printed pattern air space cloth, comprising a space cloth body and a bottom film, the bottom film is adhered to the space cloth body; characterized in that: It comprises a protective layer, a decorative layer and a substrate layer; the substrate layer is adhered to the side of the space cloth body away from the bottom film; the decorative layer is adhered to the side of the substrate layer away from the space cloth body; the protective layer is adhered to the side of the decorative layer away from the substrate layer, and the protective layer is made of the following raw materials by weight: 80-120 parts of PVC powder; 2-10 parts of flax fiber; 2-8 parts of modified magnesium hydroxide; 1-3 parts of toughening agent; 1-2 parts of stabilizer; The modified magnesium hydroxide is made of the following raw materials: magnesium hydroxide, aminopropyl octyl silicone resin, isopropyl alcohol and titanium white; The flax fiber is a modified flax fiber, and the preparation method of the modified flax fiber is as follows: 20-40 parts by weight of flax fiber is stirred with 100-150 parts by weight of a mixed solution containing urea and sodium hydroxide, then 6-9 parts by weight of montmorillonite, 12-24 parts by weight of sodium alginate and 5-15 parts by weight of calcium carbonate are added and stirred uniformly, then 1-3 parts by weight of hydrochloric acid and 2-6 parts by weight of calcium chloride are added and stirred, soaked, washed to neutral and dried to obtain the modified flax fiber.
2. A printed pattern air space arrangement according to claim 1, wherein: The preparation method of the modified magnesium hydroxide is as follows: 5-15 parts by weight of aminopropyl octyl silicone resin is mixed with 500-1500 parts by weight of isopropyl alcohol and stirred, then 25-45 parts by weight of magnesium hydroxide and 10-20 parts by weight of titanium white are added and uniformly mixed after heating, cooled to room temperature, then filtered, washed and dried and ground to obtain the modified magnesium hydroxide.
3. A printed pattern air space arrangement according to claim 2, wherein: The weight ratio of the aminopropyl octyl silicone resin, magnesium hydroxide and titanium white is 1: (3.6-4.2): (1.2-1.5).
4. The printed pattern air space of claim 1 wherein: The weight ratio of the flax fiber, montmorillonite and calcium carbonate is (3.2-3.6): (0.64-0.72):
1.
5. The printed pattern air space of claim 1 wherein: The weight ratio of the modified magnesium hydroxide, modified flax fiber and PVC powder is (0.06-0.07): (0.08-0.09):
1.
6. A printed pattern air space arrangement according to claim 1, wherein: The toughening agent is selected from one of ethylene-vinyl acetate copolymer and styrene-butadiene-styrene copolymer.
7. The printed pattern air space of claim 1 wherein: The stabilizer is barium 2-ethylhexanoate.
8. A method of making a printed pattern air space cloth, characterized by: A method for preparing the printed pattern air-tight space cloth of any one of claims 1-7 comprises the following steps: S1. After weighing each component, the PVC powder, flax fiber and modified magnesium hydroxide are mixed and stirred, then the stabilizer and toughening agent are added, mixing and extruding, then calendering, drawing, cooling and molding to obtain the protective layer; S2. The bottom film and the substrate layer are adhered to the two sides of the space cloth body respectively and dried; the decorative layer is adhered to the side of the substrate layer away from the space cloth body and embossed to form patterns; the protective layer is adhered to the surface of the decorative layer and dried to obtain the printed pattern air-tight space cloth.
9. A method of producing a printed patterned air space cloth according to claim 8, characterized in that: The drying temperature is 145-185℃.
Citation Information
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