Internal anti-skid sleeve with functional composite layer and preparation method of internal anti-skid sleeve

Abstract

The invention relates to the technical field of textile products, in particular to an internal anti-slip sleeve for detachable and washable fabric products such as pillowcases, seat cushion sleeves, back cushion sleeves, mattress sleeves and carpet sleeves, and aims to solve the problem that in the prior art, an anti-slip layer is only arranged at the bottom of a product, and the problem that a middle material and the interior of the sleeve body slip cannot be solved. The internal anti-skid sleeve comprises a sleeve body, an anti-skid layer is partially or completely arranged on the inner surface of the sleeve body, and the anti-skid layer is formed through the spraying, plastic dispensing or coating process. According to the invention, the anti-skid layer with the specific microstructure is formed on the inner surface of the sleeve body, so that the middle material is stably attached in the sleeve body, and the anti-skid point plastic layer with the micro-convex point structure or the anti-skid coating with the continuous micro-textures is formed by controlling the diameter, the distance, the material and the distribution rule of the anti-skid points. The self-adaptive friction matching with different middle materials (especially POE pillow inners easy to shrink and deform) is realized, and meanwhile, the advantage that the fabric is soft and washable is kept.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textile products, in particular to an internal anti-skid cover for detachable and washable fabric products such as pillow covers, cushion covers, back cushion covers, mattress covers, and carpet covers. By forming an anti-skid point plastic layer or anti-skid coating with specific microstructure and adhesion properties on the inner surface of the cover body, stable frictional connection between the medium and the cover body is achieved, and the fabric remains soft, breathable, and detachable and washable. The present application also relates to a preparation method of the internal anti-skid cover and its application. BACKGROUND

[0002] Currently, two types of anti-skid methods are mainly used for textile products such as pillow covers, cushion covers, mattress covers, and carpet covers. 1. External anti-skid: setting an anti-skid layer on the bottom of the product For example, point plastic, rubber layer, or anti-skid film is set on the bottom of the carpet or foot mat to prevent the product from sliding on the ground or chair surface. However, this design only solves the anti-skid problem between the product and the external surface.

[0003] 2. Structural composite: combining or sewing the fabric with an internal medium For example, the pillow cover and the pillow core are fixed by adhesion, film covering, or line sewing to reduce the sliding of the medium in the cover body. However, this overall composite structure has obvious disadvantages: The product cannot be detached and washed, making it difficult to maintain later; The composite process weakens the softness and breathability of the fabric; It affects the skin touch and use comfort; The process is complex and the cost is high.

[0004] 3. The problem is more prominent for new materials (such as POE) POE pillow cores have the characteristics of high elasticity and shrinkage after compression, and the volume will shrink during use, leading to the formation of gaps inside the ordinary pillow cover, and the medium is prone to sliding, accumulation, and deviation. The existing products do not design anti-skid structures on the inner surface of the cover body, and cannot solve the problem of internal sliding.

[0005] 4. The existing point plastic structure is only suitable for the bottom, not for the inside The existing point plastic point diameter is generally ≥2 mm, and is mainly used for the bottom of thick products such as carpets and foot mats. If it is directly used in the interior of the pillow cover, it will: Affect the hand feel Reduce breathability The convex points on the back are easy to scratch the hand Therefore, it cannot be used for "internal anti-skid".

[0006] In summary, the existing anti-skid structure all acts on the outer side of the product, cannot solve the problem of the middle material slipping in the sleeve body, and the composite process damages the fabric performance. The existing technology urgently needs an internal anti-skid structure which can be washed internally, soft and comfortable, and can effectively prevent the middle material from slipping. SUMMARY

[0007] The purpose of the present application is to overcome the defects in the prior art, such as only setting an anti-skid layer at the bottom of the product, being unable to solve the problem of the middle material slipping in the sleeve body, and being unable to be washed, and the decrease in softness caused by the overall composite structure, and to provide an internal anti-skid sleeve and a preparation method thereof.

[0008] The present application forms an anti-skid layer with a specific microstructure on the inner surface of the sleeve body, so that the middle material remains stable and fits in the sleeve body, and by controlling the diameter, spacing, material and distribution of the anti-skid points, self-adaptive friction matching between the middle material of different materials (especially POE pillow core which is easy to shrink and deform) is achieved, while the advantages of soft and washable fabric are maintained.

[0009] To achieve the above-mentioned purpose, the present application adopts the following technical solutions: An internal anti-skid sleeve with a functional composite layer comprises a sleeve body, The inner surface of the sleeve body is partially or entirely provided with an anti-skid layer, The anti-skid layer is formed by spraying, dotting or coating process, and is solidified into an anti-skid dotting layer with micro-bump structure or an anti-skid coating layer with continuous micro-texture; Further, the anti-skid dotting layer comprises a plurality of anti-skid points, the diameter of the anti-skid points is 0.1-5mm, the spacing is 2-30mm, and the anti-skid points can be hemispherical, conical, circular arc or honeycomb structure.

[0010] Further, before forming the anti-skid layer, the inner surface of the sleeve body is pretreated with a primer to improve the interfacial adhesion between the anti-skid layer and the fabric substrate, so that the anti-skid layer still has an adhesion of not less than 90% after at least 50 washes.

[0011] Further, the anti-skid layer is partitioned along the length direction or the stress direction, comprising a central anti-skid area and an edge anti-skid area; the density of the anti-skid points in the central anti-skid area is greater than that in the edge anti-skid area, so as to realize controllable friction force distribution.

[0012] Further, the anti-skid dotting layer is made of hard elastic material, and the sleeve body is made of flexible fabric, and a composite interface structure is formed during the spraying, dotting or coating solidification process.

[0013] Further, one or more of an antibacterial agent, an anti-mite agent or a temperature-sensitive color-changing agent is added to the anti-skid layer to realize the anti-skid and functional composite effect.

[0014] Further, the anti-slip layer material is PE, PU, PVC, silicone, polyester, nylon or a mixture thereof.

[0015] A method for manufacturing the internal anti-slip sleeve with a functional composite layer as described in any one of the preceding items, comprising: (1) reversing the sleeve body to expose the inner surface; (2) applying a primer layer to the inner surface for pretreatment; (3) applying the anti-slip material to the inner surface by spraying, dotting or coating process; (4) curing the anti-slip layer structure with micro-bumps or micro-texture; (5) performing ironing and shaping treatment.

[0016] The application also provides the use of the internal anti-slip sleeve as described above, which is suitable for pillow covers, cushion covers, back cushion covers, mattress covers and carpet covers.

[0017] Through the above technical solution, the application has the following significant technical effects: Effect 1: Solving the internal slip problem The anti-slip layer is arranged inside the sleeve body, not at the bottom of the product, which fundamentally solves the slip problem between the middle material and the outer sleeve, and can stably limit the deviation and accumulation of POE, latex, cotton core and other middle materials during use.

[0018] Effect 2: Forming controllable friction force to support deformed middle material The diameter (0.1-5 mm), spacing (2-30 mm) and morphology of the anti-slip point microstructure are precisely controlled, so that the friction force is adjustable and the fit degree is variable, which is particularly suitable for POE pillow cores that will shrink during use, and has the effect of "self-adaptive fit".

[0019] Effect 3: The primer layer pretreatment significantly improves the adhesion The primer layer improves the surface energy of the fabric matrix, forming a firm interface layer between the anti-slip dot plastic layer and the base cloth After 50 washes, the adhesion remains above 92% (experimental data support).

[0020] This is difficult to achieve in the prior art dot plastic layer.

[0021] Effect 4: Does not affect softness and air permeability The anti-slip point diameter can be reduced to less than 1 mm, and small dot plastic or thin coating does not affect the hand feeling of the fabric, maintaining the softness and air permeability of the original fabric.

[0022] Effect 5: Extensible functionality The anti-slip layer can add antibacterial agents, anti-mite agents and temperature-sensitive color-changing powder to achieve: Anti-slip Functionality Comfort The combination of the three improves the overall performance.

[0023] Effect six: structure can be disassembled and washed, low maintenance cost The present application does not use composite or bonding process, the sleeve and the middle material can be completely separated, which is convenient for cleaning and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic diagram of the internal anti-slip sleeve of the present application; Figure 2 is a schematic diagram of the internal partition of the internal anti-slip sleeve of the present application; Figure 3 is a schematic diagram of the internal partition of the internal anti-slip sleeve of the present application; Figure 4 is a schematic diagram of the coating of the present application; DETAILED DESCRIPTION

[0025] The present application will be further described below in conjunction with the drawings, but the present application is not limited to the following embodiments.

[0026] Example 1: basic structure example (corresponding to Figure 1) As shown in Figure 1, an internal anti-slip sleeve includes a sleeve body 1.

[0027] The inner surface of the sleeve body 1 is provided with an anti-slip layer 2, which is formed by spraying, dotting or coating process.

[0028] In this embodiment, the anti-slip layer 2 is made of silica gel material, which is formed into a continuous thin layer with a thickness of 0.1-0.3 mm by spraying, and the surface of the thin layer has microtexture, which can improve the friction while maintaining the original softness and air permeability of the fabric.

[0029] This structure can provide stable friction between the pillow core or cushion core and the sleeve, preventing the middle material from shifting during use.

[0030] Example 2: dotting microstructure example As shown in Figure 2, a dotting layer 2 is formed on the inner surface of the sleeve body 1, which is composed of a plurality of anti-slip dots 3.

[0031] The shape of the anti-slip dots 3 can be hemispherical, conical, circular arc or honeycomb structure. This embodiment adopts hemispherical structure.

[0032] The key parameters are as follows: The diameter of the anti-slip dot is 0.5 mm; The pitch is 8 mm; The height of the dots is about 0.3 mm.

[0033] The dot-plastic layer is automatically distributed by a dot-plastic machine nozzle according to the set diameter and spacing, and finally forms a stable micro-bump array through heat curing.

[0034] This embodiment is suitable for fabric products such as pillowcases and cushion covers that require high softness and does not affect the user's skin comfort.

[0035] Example 3: Sub-area density structure embodiment (corresponding to Figures 2 and 3) As shown in Figures 2 and 3, the anti-slip layer 2 adopts a sub-area arrangement structure, including: Central anti-slip area 2a (larger stress) Edge anti-slip area 2b (smaller stress) In this embodiment: This structure makes the central support area obtain stronger friction, while the edge maintains better softness, achieving a balance between comfort and stability as a whole.

[0036] The simulation test results show that: Compared with the anti-slip layer without a sub-area structure, the central slip amount is reduced by more than 30%.

[0037] Example 4: Primer pretreatment and composite interface structure (corresponding to Figure 4) In order to improve the adhesion stability of the anti-slip layer on the fabric, in this embodiment, the inner surface of the cover body 1 is treated with a primer layer 4 before forming the anti-slip layer.

[0038] The steps are as follows: Surface active pretreatment By spraying an amino silane type primer, an interface layer with improved surface energy is formed on the fabric surface.

[0039] Coating the primer layer 4 The primer layer thickness is controlled at 0.01-0.05 mm, so that hydrogen bonds and interface adsorption are generated between the primer layer and the fibers.

[0040] Forming the anti-slip layer Spray silicone or PU dot-plastic material onto the surface of the primer layer.

[0041] Curing and forming Cure at 80-130°C for 3-10 minutes to form a stable interface structure.

[0042] The key advantages of this embodiment are: After 50 times of household washing, the adhesion retention rate of the anti-slip layer reaches 92%; Significantly better than the adhesion of the primer layer without the primer layer structure (about 40%-65%).

[0043] The bottom coating is one of the core sources of the invention.

[0044] Example 5: Functional material composite example On the basis of examples 1-4, this example adds functional additives to the anti-skid material, including: Antibacterial agent (0.1-0.3 wt%) Anti-mite agent (0.1-0.2 wt%) Temperature-sensitive color-changing powder (0.3-0.5 wt%) The addition ratio is optimized to ensure the curing performance of the anti-skid material and also have functional stability.

[0045] The performance check results show: Antibacterial rate > 90% Anti-mite rate > 85% Temperature change response temperature range: 28-32℃ At the same time, it does not affect the friction performance and softness of the micro-point structure.

[0046] Example 6: Performance comparison experiment Compare ordinary pillowcases (sample A), existing rubber bottom anti-skid pillowcases (sample B), and the pillowcases of the invention (sample C): The results show that sample C is significantly better than the existing scheme in terms of friction performance, anti-slip performance, and washability.

[0047] Example 7: Multi-scene application example The internal anti-skid structure of the invention can adjust the point plastic parameters according to different uses: All examples achieve internal anti-skid without changing the softness of the fabric, and can be adapted to different materials and thicknesses through process control.

Claims

1. An internal anti-skid cover with functional composite layer, comprising a cover body, characterized in that: the inner surface of the cover body is partially or entirely provided with an anti-skid layer, the anti-skid layer is formed by spraying, dotting or coating process and solidified into an anti-skid dotting layer with micro-bump structure or an anti-skid coating layer with continuous micro-texture.

2. The internal anti-slip sleeve with a functional composite layer according to claim 1, characterized in that: the anti-skid dotting layer comprises a plurality of anti-skid dots with a diameter of 0.1-5 mm and a pitch of 2-30 mm, and the anti-skid dots can be in a hemispherical, conical, circular arc or honeycomb structure.

3. The internal anti-skid cover with functional composite layer according to claim 1, characterized in that: before forming the anti-skid layer, the inner surface of the cover body is pretreated with a primer coating to improve the interfacial adhesion between the anti-skid layer and the fabric substrate, so that the anti-skid layer still has an adhesion of not less than 90% after at least 50 washes.

4. The internal anti-skid cover with functional composite layer according to claim 1, characterized in that: the anti-skid layer is arranged in zones along the length direction or the stress direction, including a central anti-skid zone and an edge anti-skid zone; the anti-skid dot density of the central anti-skid zone is greater than that of the edge anti-skid zone to achieve controllable friction force distribution.

5. The internal anti-skid cover with functional composite layer according to claim 1, characterized in that: the anti-skid dotting layer is made of hard elastic material, and the cover body is made of flexible fabric, and the two form a composite interface structure during the spraying, dotting or coating solidification process.

6. The internal anti-skid cover with functional composite layer according to claim 1, characterized in that: one or more of an antibacterial agent, an anti-mite agent or a temperature-sensitive color-changing agent is added to the anti-skid layer to achieve the effects of anti-skid and functional composite.

7. The internal anti-skid cover with functional composite layer according to claim 1, characterized in that: the anti-skid layer material is PE, PU, PVC, silicone, polyester, nylon or a mixture thereof.

8. A method of producing the inner anti-skid sleeve with a functional composite layer according to any one of claims 1 - 7, characterized in that, including: (1) reversing the cover body so that the inner surface is exposed; (2) applying a primer coating to the inner surface for pretreatment; (3) applying anti-skid material to the inner surface by spraying, dotting or coating process; (4) solidifying into an anti-skid layer structure with micro-bumps or micro-texture; (5) performing ironing and shaping treatment.

9. Use of the internal anti-skid cover with functional composite layer according to any one of claims 1-7 in a pillow cover, cushion cover, back cushion cover, mattress cover or carpet cover.

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