Flexible net-clamping pool material and preparation method thereof

Abstract

The invention discloses a flexible net-clamping pool material and a preparation method thereof, and belongs to the technical field of net-clamping materials, and the preparation method comprises the following steps: carrying out shaping treatment on thin net cloth by adopting paste, then drying, and carrying out hot-pressing lamination on the thin net cloth, a preheated surface film and a preheated bottom film. According to the preparation method of the flexible net-clamping pool material, through twice pressing, the paste can fully permeate into the thin net cloth and is uniformly attached to the thin net cloth, a good yarn fixing effect is achieved, and the obtained flexible net-clamping pool material is soft, has good folding resistance and is particularly suitable for preparing a small support pool with the size smaller than 10 m < 3 >; and the method has the characteristic of low cost.

Description

Technical Field

[0001] The invention belongs to the technical field of mesh materials, and in particular relates to a flexible mesh pool material and a preparation method thereof. Background Art

[0002] The bracket pool is a common temporary or mobile water storage facility, mainly composed of a steel frame and a waterproof cloth. The bracket pool is suitable for outdoor places such as parks, squares, and farmlands. In summer, it can provide people with a place to play in the water and swim, such as the simple detachable swimming pool disclosed in the Chinese utility model patent application number 200720053759.1; it can also be used for the water storage part of the irrigation system. The waterproof cloth of the bracket pool is mostly made of a mesh pool material composed of a mesh and a film, and the film provides good waterproof performance for the mesh.

[0003] For volume less than 10m 3 For a small bracket pool, since it needs to be folded and stored frequently, the mesh needs to be relatively soft and have good folding resistance. Summary of the invention The technical problems to be solved by the present invention are: In order to solve the above technical problems, the technical solution adopted by the present invention is: a method for preparing a flexible sandwich pool material, comprising the following steps: using a paste to shape the thin mesh cloth, then drying it, and then hot-pressing and laminating it with the preheated mask and base film.

[0004] Wherein, the shaping process is carried out in a roller-type pasting machine; The roller-type pasting machine comprises a pasting tank, a pressure roller arranged in the pasting tank, and a steel roller, a first rubber roller and a second rubber roller arranged above the pasting tank in sequence from bottom to top.

[0005] Another technical solution adopted by the present invention is to provide a flexible net-walled pool material prepared by the above-mentioned preparation method.

[0006] The beneficial effects of the present invention are as follows: the preparation method of the flexible netted water pool material provided by the present invention enables the paste to fully penetrate into the thin net cloth and evenly adhere to the thin net cloth through two pressings, thereby achieving a good yarn fixing effect. The obtained flexible netted water pool material is soft and has good folding resistance, and is particularly suitable for preparing a thin netted water pool material with a diameter of less than 10 m. 3 Small bracket pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a front view of a roller-type pasting machine according to a specific embodiment of the present invention; Figure 2 It is a structural schematic diagram of a roller-type pasting machine according to a specific embodiment of the present invention; Figure 3A room temperature static cross folding test diagram of an example of a specific embodiment of the present invention; Figure 4 This is a room temperature static cross folding test diagram of a comparative example of a specific embodiment of the present invention; Description of reference numerals: 1. Paste trough; 2. Pressure roller; 3. Steel roller; 4. First rubber roller; 5. Second rubber roller; 6. Feed guide roller; 7. Discharge guide roller; 8. Thin mesh cloth. DETAILED DESCRIPTION

[0008] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0009] A method for preparing a flexible net-binding pool material comprises the following steps: using a paste to shape a thin net cloth, then drying it, and then hot-pressing and laminating it with a preheated face mask and a base film.

[0010] From the above description, it can be seen that the beneficial effects of the present invention are: the preparation method of the flexible netted water pool material provided by the present invention adopts a thin net cloth as the base cloth, the thin net cloth is pressed twice, the paste fully penetrates and is evenly attached to the thin net cloth, no needle plate chain is required for transmission during the entire processing process, the net cloth is not easy to deform and has little damage, the obtained netted water pool material is soft and has good folding resistance, and folding parts are not easy to have creases or wear after multiple foldings, which is particularly suitable for preparing the water pool material less than 10m that often needs to be folded and stored. 3 The raw material cost of the thin mesh cloth used in the whole product preparation process is low, and the amount of paste is small, which makes the overall raw material cost low. The whole process is composite molding in one time, and the production is efficient, which effectively reduces the cost of the product.

[0011] Furthermore, the drying temperature is 110-130° C.; the preheating temperature is 150-170° C.; the hot pressing bonding temperature is 170-185° C., and the pressure is 20-30 kgf.

[0012] Furthermore, the thin mesh fabric is a warp-knitted polyester mesh fabric woven with yarns within 1000D (including 1000D).

[0013] Furthermore, the tissue density of the thin mesh is 2~3.6 strands / cm This type of warp-knitted polyester mesh with a yarn fineness of less than 1000D and a tissue density of 2 to 3.6 yarns / cm can ensure that the resulting sandwich pool material remains relatively soft after pasting and bonding.

[0014] Further, the shaping process is carried out in a roller-type pasting machine; Figure 1 and 2As shown in the figure, the roller-type gluing machine includes a gluing tank, a pressure roller arranged in the gluing tank, and a steel roller, a first rubber roller and a second rubber roller arranged above the gluing tank from bottom to top. The setting of two rubber rollers further controls the amount of gluing. The surface texture of the rubber rollers is fine, and the two rollers work together to make the gluing more uniform.

[0015] Furthermore, a feed guide roller is provided at one end of the pasting tank, and a discharge guide roller is provided above the second rubber roller. The feed guide roller and the discharge guide roller are used to guide the thin mesh cloth to enter and leave the roller pasting machine to achieve continuous production.

[0016] Furthermore, the viscosity of the paste is 200~500cps. The viscosity of the paste should not be too high. Paste with too high viscosity is easy to cause a large amount of paste, which is difficult to dry and accumulates on the guide roller, seriously affecting production; at the same time, in order to achieve the drying effect, the temperature needs to be increased. Due to the characteristics of the thin mesh, the increase in temperature will further cause the mesh to shrink and deform, resulting in uneven mesh holes and rough surface effects after compounding; in addition, the increase in the amount of paste and the decrease in drying efficiency will further lead to a slow production speed, increased costs, and easy to cause bubble problems after lamination.

[0017] Furthermore, the face mask and the base film are both PVC films; the paste includes E-PVC paste resin, plasticizer and liquid stabilizer in a mass ratio of 100:100~150:2~4, and an adhesive accounting for 4~8% of the total mass of the paste. The adhesive is a conventional commercially available PVC cross-linking agent, and the liquid stabilizer is a conventional commercially available barium zinc composite stabilizer. The viscosity of the paste of the above formula is 200~500cps, which is much lower than the viscosity of the general E-PVC paste of more than 1000cps, and can be used with the above-mentioned roller-type pasting machine to achieve a small amount of pasting of only 20~40gsm. However, the high viscosity paste cannot achieve a small amount of pasting, which will further affect the roller-type pasting machine to cause paste accumulation, affect the production process, and lead to reduced efficiency; at the same time, it will affect the subsequent drying, and the drying temperature needs to be increased in accordance with the viscosity. Excessive drying temperature will cause deformation of the thin mesh cloth, resulting in uneven mesh on the surface of the final composite product, rough surface effect, and easy to cause bubble problems after bonding.

[0018] Furthermore, the E-PVC paste resin is an E-PVC paste resin with a degree of polymerization of 1000 to 1300.

[0019] The paste can provide good bonding ability and yarn fixing effect. Combined with double pressing, it can ensure that the yarn is not prone to fuzzing during the subsequent cutting process. At the same time, the paste does not contain solvents, and the production and use processes are more environmentally friendly.

[0020] A flexible net-walled pool material is prepared by any of the above-mentioned preparation methods, comprising a face mask layer, a mesh layer and a bottom film layer which are arranged in sequence.

[0021] Embodiment 1: Please refer to Figure 1 and 2 A roller-type gluing machine comprises a gluing tank 1, a pressure roller 2 arranged in the gluing tank, and a steel roller 3, a first rubber roller 4 and a second rubber roller 5 arranged above the gluing tank from bottom to top; a feed guide roller 6 is arranged at one end of the gluing tank, and a discharge guide roller 7 is arranged above the second rubber roller 5. During the shaping process, the thin mesh cloth 8 passes through the feed guide roller 6, the pressure roller 2 in the gluing tank, the steel roller 3, the first rubber roller 4, the second rubber roller 5 and the discharge guide roller 7 in sequence.

[0022] Embodiment 2: A method for preparing a flexible mesh pool material comprises the following steps: injecting a paste into a paste tank of a roller-type pasting machine of Example 1, shaping a thin mesh cloth, and then drying it at 120°C; preheating a PVC face mask and a PVC bottom film at 160°C, and then hot-pressing the dried pasted thin mesh cloth and the preheated face mask and bottom film at 175°C and 20kgf, and then embossing, cooling, and winding in sequence to obtain a low-cost flexible mesh pool material; the low-cost flexible mesh pool material comprises a face mask layer, a mesh cloth layer, and a bottom film layer arranged in sequence; The thin mesh is a warp-knitted polyester mesh woven from 500D yarn with a tissue density of 3.6 strands / cm; The paste is composed of E-PVC paste resin with a degree of polymerization of 1300, DOTP and a liquid stabilizer in a mass ratio of 100:130:2, and a binder accounting for 6% of the total mass of the paste. The viscosity of the paste is 300 cps.

[0023] Embodiment 3: A method for preparing a flexible mesh pool material comprises the following steps: injecting a paste into a paste tank of a roller-type pasting machine of Example 1, shaping a thin mesh cloth, and then drying it at 130°C; preheating a PVC face mask and a PVC bottom film at 170°C, and then hot-pressing the dried pasted thin mesh cloth and the preheated face mask and bottom film at 170°C and 30kgf, and then embossing, cooling, and winding in sequence to obtain a low-cost flexible mesh pool material; the low-cost flexible mesh pool material comprises a face mask layer, a mesh cloth layer, and a bottom film layer arranged in sequence; The thin mesh is a warp-knitted polyester mesh woven from 1000D yarn with a tissue density of 2 yarns / cm; The paste is composed of E-PVC paste resin with a degree of polymerization of 1000, DOTP and a liquid stabilizer in a mass ratio of 100:100:3, and a binder accounting for 4% of the total mass of the paste. The viscosity of the paste is 500 cps.

[0024] Embodiment 4: A method for preparing a flexible mesh pool material comprises the following steps: injecting a paste into a paste tank of a roller-type pasting machine of Example 1, shaping a thin mesh cloth, and then drying it at 110°C; preheating a PVC face mask and a PVC bottom film at 150°C, and then hot-pressing the dried pasted thin mesh cloth and the preheated face mask and bottom film at 185°C and 25kgf, and then embossing, cooling, and winding in sequence to obtain a low-cost flexible mesh pool material; the low-cost flexible mesh pool material comprises a face mask layer, a mesh cloth layer, and a bottom film layer arranged in sequence; The thin mesh is a warp-knitted polyester mesh woven from 500D yarns with a tissue density of 3 strands / cm; The paste is composed of E-PVC paste resin with a degree of polymerization of 1100, DOTP and a liquid stabilizer in a mass ratio of 100:150:4, and a binder accounting for 8% of the total mass of the paste. The viscosity of the paste is 200 cps.

[0025] Comparative Example 1: The only difference between Comparative Example 1 and Example 4 is that a commercially available PU paste is used instead of the paste in Example 4.

[0026] The netted pool materials obtained in Example 4 and Comparative Example 1 were subjected to a room temperature static cross-folding comparison test. The results of Example 4 are shown in Figure 3 As shown, the results of comparative example 1 are shown in Figure 4 See Figure 3 and Figure 4 From the part circled by the red frame, it can be seen that the fold marks at the sharp corners of comparative example 1 are more obvious and difficult to recover, while the sharp corners of example 4 are smaller and recover faster. This indicates that the flexible netted pool material obtained by the preparation method of the flexible netted pool material provided by the present invention has good folding resistance.

[0027] In summary, the preparation method provided by the present invention is easy to operate and process, and no paste containing volatile solvents is used during the processing, which is friendly to operators. No needle plate chain is required during the preparation process, and the roller-type pasting machine and other roller groups can be used for time processing and transmission. Through the cooperation of each roller of the roller-type pasting machine, the effect of fully impregnating and evenly adhering a small amount of paste on the sparse mesh cloth can be achieved, thereby ensuring that the surface of the obtained sandwich water pool material is flat and free of bubbles, and is soft and fold-resistant.

[0028] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for preparing a flexible net-walled pool material, characterized in that: The following steps are involved: The thin mesh is shaped with a paste, then dried, and then hot-pressed and laminated with the preheated mask and base film.

2. The method for preparing the flexible net pool material according to claim 1, characterized in that: The thin mesh fabric is a warp-knitted polyester mesh fabric woven with yarns within 1000D.

3. The method for preparing the flexible net pool material according to claim 1, characterized in that: The tissue density of the thin mesh cloth is 2-3.6 threads / cm.

4. The method for preparing the flexible net pool material according to claim 1, characterized in that: The shaping process is carried out in a roller-type pasting machine; The roller-type pasting machine comprises a pasting tank, a pressure roller arranged in the pasting tank, and a steel roller, a first rubber roller and a second rubber roller arranged above the pasting tank in sequence from bottom to top.

5. The method for preparing the flexible net pool material according to claim 4, characterized in that: A feeding guide roller is arranged at one end of the paste trough, and a discharging guide roller is arranged above the second rubber roller.

6. The method for preparing the flexible net pool material according to claim 1, characterized in that: The viscosity of the paste is 200-500 cps.

7. The method for preparing the flexible net pool material according to claim 1, characterized in that: The face mask and the base film are both PVC films; the paste comprises E-PVC paste resin, a plasticizer and a liquid stabilizer in a mass ratio of 100:100~150:2~4, and an adhesive accounting for 4~8% of the total mass of the paste.

8. The method for preparing the flexible net pool material according to claim 7, characterized in that: The E-PVC paste resin is an E-PVC paste resin with a degree of polymerization of 1000-1300.

9. A flexible net pool material, characterized in that: The method is prepared according to any one of claims 1 to 8.

10. The flexible net pool material according to claim 9, characterized in that: The invention comprises a facial mask layer, a mesh layer and a bottom film layer which are arranged in sequence.

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