CN114103362A - PU material for wrapping pillow memory cotton core and preparation method thereof - Google Patents

PU material for wrapping pillow memory cotton core and preparation method thereof Download PDF

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Publication number
CN114103362A
CN114103362A CN202111468427.0A CN202111468427A CN114103362A CN 114103362 A CN114103362 A CN 114103362A CN 202111468427 A CN202111468427 A CN 202111468427A CN 114103362 A CN114103362 A CN 114103362A
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China
Prior art keywords
film
thickness
agent
cotton core
wrapping
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Chinese (zh)
Inventor
曾鸣
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Jingliang Guangzhou Technology Co ltd
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Jingliang Guangzhou Technology Co ltd
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Priority to CN202111468427.0A priority Critical patent/CN114103362A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/66—Additives characterised by particle size
    • C09D7/68—Particle size between 100-1000 nm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/21—Anti-static
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51—Elastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/005—Additives being defined by their particle size in general
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/101—Esters; Ether-esters of monocarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/29—Compounds containing one or more carbon-to-nitrogen double bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/10—Encapsulated ingredients

Abstract

The invention relates to the technical field of pillowcase, in particular to a PU material for wrapping a memory cotton core of a pillow and a preparation method thereof, the PU material comprises a PET antistatic film surface layer with the thickness of 0.1-0.5mm, a TPU elastic film with the thickness of 0.05-0.1mm and a PP film with the thickness of 0.05-0.15mm, the PET antistatic film surface layer is arranged on the top surface of the TPU elastic layer, the PP film is arranged on the bottom surface of the TPU elastic layer, and a hydrogel layer is coated between the layers, the PU film comprises the following raw materials: mixed resin, curing agent, delustering agent, antistatic agent, wetting agent and flavoring agent. The PU material is wrapped on the pillow memory cotton core, so that the pillow has cool touch feeling and soft skin touch feeling, is more comfortable to use, and the fragrance agent added into the PU film emits fragrance, so that the pillow has the advantages of improving the surface smell of the PU material and making people feel comfortable, and has various psychological and physiological medical health-care functions of sterilization, refreshing and the like.

Description

PU material for wrapping pillow memory cotton core and preparation method thereof
Technical Field
The invention relates to the technical field of pillowcase, in particular to a PU material for wrapping pillow memory cotton core and a preparation method thereof.
Background
The memory cotton core can reduce the pressure of neck, promptly also absorbs human pressure, and when the human body contacted the material, the material will respond to human temperature, and the softness gradually changed gets up, has absorbed human pressure again simultaneously to adjust the most comfortable posture state with the human body. When a person lies on the memory cotton core, the spine is in an S-shaped natural physiological bending state when the person lies on the back, the spine is not bent when the person lies on the side, and meanwhile, the memory cotton core does not have a compression point on the human body. Most of the memory cotton cores of the existing wrapping pillows on the market are commonly 2 types, one type is a memory cotton pillow which adopts a slow rebound resilience material, the other type is a latex pillow which is made of juice of a rubber tree, the latex content of the latex pillow on the market is generally between 80% and 93%, and the latex pillow has the following defects:
(1) the tensile strength and the elongation at break are low, the use is inconvenient, the production cost is high, and the comfort level is reduced;
(2) the antistatic effect is poor, a continuous phase cannot be formed, the process production of the product is simple, and the product is easy to crack in actual use;
(3) the waterproof and breathable effects are lower compared with the design of the product.
Therefore, the design of a new PU material for wrapping the memory cotton core of the pillow is particularly critical.
Disclosure of Invention
The invention aims to provide a PU material for wrapping a pillow memory cotton core and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a PU material for wrapping up cotton core of pillow memory, is 0.1-0.5 mm's PET antistatic membrane top layer, thickness for 0.05-0.1 mm's TPU elastic membrane, thickness for 0.05-0.15 mm's PU film including thickness, the PET antistatic membrane top layer sets up in the top surface of TPU elastic layer, and the PU film sets up in the bottom surface of TPU elastic layer, and the coating has hydrogel layer between the layer, the PU film includes the raw materials of following parts by weight: 70-100 parts of mixed resin, 20-30 parts of curing agent, 5-8 parts of flatting agent, 3-5 parts of antistatic agent, 3-5 parts of wetting agent and 0-2 parts of flavoring agent.
Preferably, the PU material comprises a PET antistatic film surface layer with the thickness of 0.3mm, a TPU elastic film with the thickness of 0.08mm and a PU film with the thickness of 0.1 mm.
Preferably, the PU material comprises a PET antistatic film surface layer with the thickness of 0.1mm, a TPU elastic film with the thickness of 0.05mm and a PU film with the thickness of 0.05 mm.
Preferably, the PU material comprises a PET antistatic film surface layer with the thickness of 0.5mm, a TPU elastic film with the thickness of 0.1mm and a PU film with the thickness of 0.15 mm.
Preferably, the hydrogel layer is formed by blending siloxane-modified polyurethane and nano-silica, in the siloxane-modified polyurethane molecule, a skeleton group is 3-mercapto-propyl methyl dimethoxy silane, a solubilizing group is hydroxyl, a hydrophobic group is 1-amino-3, 5-dimethyl-cyclohexane, the mass fraction of the added 3-mercapto-propyl methyl dimethoxy silane is 30-50% of the total mass of reactants, and the particle size of the nano-silica particles is 100-200 nm.
Preferably, the preparation method of the PU film comprises the following steps: weighing the raw materials according to the weight ratio, mixing and stirring the raw materials uniformly, and uniformly coating the mixed solution on a substrate for drying to obtain the PU film.
Preferably, the mixed resin is prepared by mixing the following components in a ratio of 3-5: 1, the curing agent is a dimer curing agent or a trimer curing agent, the delustering agent is a silicon dioxide delustering agent, the antistatic agent is an imine salt electrostatic agent, the wetting agent is isopropyl myristate and isopropyl palmitate, and the flavoring agent is microcapsule essence.
On the other hand, the invention also provides a preparation method of the PU material for wrapping the pillow memory cotton core, which comprises the following steps:
s11: taking a PET antistatic film, a TPU elastic film, a PU film and hydrogel;
s12: uniformly coating a layer of hydrogel on each of two sides of the TPU elastic membrane;
s13: respectively attaching the PET antistatic film and the PU film to two sides of the TPU elastic film, and manually troweling to prepare a semi-finished material;
s14: sending the semi-finished product material into an oven for primary baking;
s15: trimming redundant edges and corners of the semi-finished product material after primary baking, and trowelling the semi-finished product material again;
s16: sending the semi-finished product cut by the S15 into an oven for secondary baking, further shrinking the semi-finished product material, and perfectly attaching the layers to prepare a finished product PU material;
s17: and (4) finishing the finished PU material, trimming redundant parts and burrs, and finally rolling.
Preferably, the hydrogel coating thickness in step S12 is 0.15-0.2 mm.
Preferably, the temperature of the oven in the preliminary baking in the step S14 is set at 125 ℃ and the baking time is 45-60S.
Preferably, the temperature of the oven in the secondary baking of the step S16 is set at 125-130 ℃, and the baking time is 50-60S.
Compared with the prior art, the invention has the beneficial effects that:
1. the PU material for wrapping the pillow memory cotton core and the preparation method thereof have the advantages that the raw material formula is scientific and reasonable, the raw materials are blended according to a reasonable proportion, the effective components of different raw materials are fully fused and complemented, the economic benefit, the social benefit and the popularization value are higher, the PU material is prepared from the PET antistatic film, the TPU elastic film, the PU film and the hydrogel, the tensile strength and the elongation at break are high, the use is more convenient, the PU material is non-toxic and harmless, the production cost is low, the price is low, the PU material can be used after being detached and is very convenient, the PU material wraps the pillow memory cotton core, and the PU material has cool touch feeling, soft skin touch feeling and more comfortable use.
2. According to the invention, the antistatic agent is added into the PET film, so that an extremely thin conductive layer is formed on the surface of the film, a continuous phase is formed, the surface conductivity of the PU material is improved, and generated charges can be leaked as soon as possible, and the surface specific resistance of the antistatic film is less than or equal to 9-11 ohms of 10.
3. In the invention, the TPU elastic membrane is a membrane prepared by processes of calendering, tape casting, membrane blowing, coating and the like on the basis of TPU granules, and the TPU granules are prepared by extruding and mixing MDI containing NCO functional groups and POLYOL containing OH functional groups, so that the tensile resistance and the elastic property of the PU material can be improved, and the PU material is not easy to break.
4. In the invention, the PU film is a polyurethane film, is a non-toxic harmless environment-friendly material, has no harm to human skin, is waterproof and breathable, and can be provided with a concave groove at the head part of the PU material for wrapping the memory cotton core of the pillow and a concave-convex groove at the side sleeping part to enhance the breathable effect.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides the following technical scheme:
example 1
The utility model provides a PU material for wrapping up cotton core of pillow memory, the PU material includes that thickness is 0.3 mm's PET antistatic membrane top layer, thickness is 0.08 mm's TPU elastic membrane, thickness is 0.1 mm's PU film, PET antistatic membrane top layer sets up in the top surface of TPU elastic layer, the PU film sets up in the bottom surface of TPU elastic layer, and the coating has hydrogel layer between the layer, the PU film includes the raw materials of following parts by weight: 80 parts of mixed resin, 25 parts of curing agent, 7 parts of flatting agent, 4 parts of antistatic agent, 4 parts of wetting agent and 1 part of flavoring agent;
the preparation method of the PU material for wrapping the pillow memory cotton core in the embodiment comprises the following steps:
s11: taking a PET antistatic film, a TPU elastic film, a PU film and hydrogel;
s12: uniformly coating a layer of hydrogel on each of two sides of the TPU elastic membrane;
s13: respectively attaching the PET antistatic film and the PU film to two sides of the TPU elastic film, and manually troweling to prepare a semi-finished material;
s14: sending the semi-finished product material into an oven for primary baking;
s15: trimming redundant edges and corners of the semi-finished product material after primary baking, and trowelling the semi-finished product material again;
s16: sending the semi-finished product cut by the S15 into an oven for secondary baking, further shrinking the semi-finished product material, and perfectly attaching the layers to prepare a finished product PU material;
s17: and (4) finishing the finished PU material, trimming redundant parts and burrs, and finally rolling.
The hydrogel layer of the embodiment is formed by blending siloxane-modified polyurethane and nano-silica, in the siloxane-modified polyurethane molecule, a skeleton group is 3-mercapto-propyl-methyl-dimethoxy silane, a solubilizing group is hydroxyl, a hydrophobic group is 1-amino-3, 5-dimethyl-cyclohexane, the added mass fraction of the 3-mercapto-propyl-methyl-dimethoxy silane is 45% of the total mass of reactants, and the particle size of nano-silica particles is 150 nm.
It is worth to say that the preparation method of the PU film comprises the following steps: weighing the raw materials according to the weight ratio, mixing and stirring the raw materials uniformly, and uniformly coating the mixed solution on a substrate for drying to obtain the PU film.
Specifically, the mixed resin is prepared by mixing the following components in a ratio of 4: 1, the curing agent is a dimer curing agent, the delustering agent is a silicon dioxide delustering agent, the antistatic agent is an imine salt electrostatic agent, the wetting agent is isopropyl myristate and isopropyl palmitate, and the flavoring agent is microcapsule essence.
Specifically, the thickness of the hydrogel coating in step S12 was 0.18 mm.
Further, the oven temperature in the primary baking of step S14 was set at 125 ℃ and the baking time was 50S, and the oven temperature in the secondary baking of step S17 was set at 130 ℃ and the baking time was 60S.
Example 2
The utility model provides a PU material for wrapping up cotton core of pillow memory, the PU material includes that thickness is 0.1 mm's PET antistatic membrane top layer, thickness is 0.05 mm's TPU elastic membrane, thickness is 0.05 mm's PU film, PET antistatic membrane top layer sets up in the top surface of TPU elastic layer, the PU film sets up in the bottom surface of TPU elastic layer, and the coating has hydrogel layer between the layer, the PU film includes the raw materials of following parts by weight: 70 parts of mixed resin, 20 parts of curing agent, 5 parts of flatting agent, 3 parts of antistatic agent, 3 parts of wetting agent and 0 part of flavoring agent;
the preparation method of the PU material for wrapping the pillow memory cotton core in the embodiment comprises the following steps:
s11: taking a PET antistatic film, a TPU elastic film, a PU film and hydrogel;
s12: uniformly coating a layer of hydrogel on each of two sides of the TPU elastic membrane;
s13: respectively attaching the PET antistatic film and the PU film to two sides of the TPU elastic film, and manually troweling to prepare a semi-finished material;
s14: sending the semi-finished product material into an oven for primary baking;
s15: trimming redundant edges and corners of the semi-finished product material after primary baking, and trowelling the semi-finished product material again;
s16: sending the semi-finished product cut by the S15 into an oven for secondary baking, further shrinking the semi-finished product material, and perfectly attaching the layers to prepare a finished product PU material;
s17: and (4) finishing the finished PU material, trimming redundant parts and burrs, and finally rolling.
The hydrogel layer of the embodiment is formed by blending siloxane-modified polyurethane and nano-silica, in the siloxane-modified polyurethane molecule, a skeleton group is 3-mercapto-propyl-methyl-dimethoxy silane, a solubilizing group is hydroxyl, a hydrophobic group is 1-amino-3, 5-dimethyl-cyclohexane, the added mass fraction of the 3-mercapto-propyl-methyl-dimethoxy silane is 30% of the total mass of reactants, and the particle size of nano-silica particles is 100 nm.
It is worth to say that the preparation method of the PU film comprises the following steps: weighing the raw materials according to the weight ratio, mixing and stirring the raw materials uniformly, and uniformly coating the mixed solution on a substrate for drying to obtain the PU film.
Specifically, the mixed resin is prepared by mixing the following components in a ratio of 3: 1, the curing agent is a tripolymer curing agent, the flatting agent is a silicon dioxide flatting agent, the antistatic agent is an iminium salt electrostatic agent, the wetting agent is isopropyl myristate and isopropyl palmitate, and the flavoring agent is microcapsule essence.
Specifically, the thickness of the hydrogel coating in step S12 was 0.15 mm.
Further, the oven temperature in the primary baking of step S14 was set at 120 ℃ and the baking time was 45S, and the oven temperature in the secondary baking of step S17 was set at 128 ℃ and the baking time was 65S.
Example 3
The utility model provides a PU material for wrapping up cotton core of pillow memory, the PU material includes that thickness is 0.5 mm's PET antistatic membrane top layer, thickness is 0.1 mm's TPU elastic membrane, thickness is 0.15 mm's PU film, PET antistatic membrane top layer sets up in the top surface of TPU elastic layer, the PU film sets up in the bottom surface of TPU elastic layer, and the coating has hydrogel layer between the layer, the PU film includes the raw materials of following parts by weight: 100 parts of mixed resin, 30 parts of curing agent, 8 parts of flatting agent, 5 parts of antistatic agent, 5 parts of wetting agent and 2 parts of flavoring agent;
the preparation method of the PU material for wrapping the pillow memory cotton core in the embodiment comprises the following steps:
s11: taking a PET antistatic film, a TPU elastic film, a PU film and hydrogel;
s12: uniformly coating a layer of hydrogel on each of two sides of the TPU elastic membrane;
s13: respectively attaching the PET antistatic film and the PU film to two sides of the TPU elastic film, and manually troweling to prepare a semi-finished material;
s14: sending the semi-finished product material into an oven for primary baking;
s15: trimming redundant edges and corners of the semi-finished product material after primary baking, and trowelling the semi-finished product material again;
s16: sending the semi-finished product cut by the S15 into an oven for secondary baking, further shrinking the semi-finished product material, and perfectly attaching the layers to prepare a finished product PU material;
s17: and (4) finishing the finished PU material, trimming redundant parts and burrs, and finally rolling.
The hydrogel layer of the embodiment is formed by blending siloxane-modified polyurethane and nano-silica, in the siloxane-modified polyurethane molecule, a skeleton group is 3-mercapto-propyl-methyl-dimethoxy silane, a solubilizing group is hydroxyl, a hydrophobic group is 1-amino-3, 5-dimethyl-cyclohexane, the added mass fraction of the 3-mercapto-propyl-methyl-dimethoxy silane is 50% of the total mass of reactants, and the particle size of nano-silica particles is 200 nm.
It is worth to say that the preparation method of the PU film comprises the following steps: weighing the raw materials according to the weight ratio, mixing and stirring the raw materials uniformly, and uniformly coating the mixed solution on a substrate for drying to obtain the PU film.
Specifically, the mixed resin is prepared from the following components in a ratio of 5: 1, the curing agent is a tripolymer curing agent, the flatting agent is a silicon dioxide flatting agent, the antistatic agent is an iminium salt electrostatic agent, the wetting agent is isopropyl myristate and isopropyl palmitate, and the flavoring agent is microcapsule essence.
Specifically, the thickness of the hydrogel coating in step S12 was 0.2 mm.
Further, the oven temperature in the primary baking of step S14 was set at 125 ℃ and the baking time was 60S, and the oven temperature in the secondary baking of step S17 was set at 128 ℃ and the baking time was 55S.
Comparing the three PU materials for wrapping the pillow memory cotton core prepared by the invention with the traditional materials for wrapping the pillow memory cotton core, wherein the traditional materials for wrapping the pillow memory cotton core are latex, and the test results are shown in the following table:
example 1 Example 2 Example 3 Conventional
Tensile Strength (MPa) 3.38-3.54 3.05-3.45 3.68-3.87 1.2-1.5
Elongation at Break (%) 125-140 110-135 130-152 40-60
Note: the values in the table are range values representing 5 tests per sample at the time of the test, and the range values of the 5 test results are recorded.
As can be seen from the above table, the three PU materials for wrapping the pillow memory cotton core prepared by the invention are compared with the traditional materials for wrapping the pillow memory cotton core between the tensile strength and the elongation at break, the tensile strength is the resistance representing the maximum uniform plastic deformation of the materials, the elongation at break is the ratio of the displacement value of the sample when the sample is broken and the original length, the higher the tensile strength is, the softer the sample is, the higher the elongation at break is, the more difficult the sample is to break, the tensile strength and the elongation at break of the PU material for wrapping the pillow memory cotton core are obviously higher than those of the traditional materials for wrapping the pillow memory cotton core, so that the PU material has soft skin touch feeling and is more comfortable to use.
The PU material for wrapping the pillow memory cotton core and the preparation method thereof have scientific and reasonable raw material formula and are blended according to reasonable proportion, so that the effective components of different raw materials are fully fused and complemented, the PU material has higher economic benefit, social benefit and popularization value, is prepared by the PET antistatic film, the TPU elastic film, the PU film and the hydrogel, has high tensile strength and elongation at break, is more convenient to use, is nontoxic and harmless, has low production cost and low price, can be used immediately after being disassembled and is very convenient, the PU material wraps the pillow memory cotton core, has cool touch and soft skin touch, is more comfortable to use, and is prepared by mixing resin, a curing agent, a flatting agent, an antistatic agent and a wetting agent, has good waterproof and moisture-permeable performances, the added flavoring agent gives off fragrance, and improves the surface smell of the PU material, has the advantages of good mood, and has various psychological and physiological health care functions of sterilization, refreshing and the like.
According to the invention, the antistatic agent is added into the PET film, so that an extremely thin conductive layer is formed on the surface of the film, a continuous phase is formed, the surface conductivity of the PU material is improved, and generated charges are leaked as soon as possible, and the surface specific resistance of the antistatic film is less than or equal to 10 and 9-11 th-power ohm, so that the antistatic effect is improved.
In the invention, the TPU elastic membrane is a membrane prepared by processes of calendering, tape casting, membrane blowing, coating and the like on the basis of TPU granules, and the TPU granules are prepared by extruding and mixing MDI containing NCO functional groups and POLYOL containing OH functional groups, so that the tensile resistance and the elastic property of the PU material can be improved, and the PU material is not easy to break.
In the invention, the PU film is a polyurethane film, is a non-toxic harmless environment-friendly material, has no harm to human skin, and is waterproof and breathable.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a PU material for wrapping up cotton core of pillow memory which characterized in that: including the antistatic membrane top layer of PET that thickness is 0.1-0.5mm, the TPU elastic membrane that thickness is 0.05-0.1mm, the PU film that thickness is 0.05-0.15mm, the antistatic membrane top layer of PET sets up in the top surface of TPU elastic layer, and the PU film sets up in the bottom surface of TPU elastic layer, and the coating has the hydrogel layer between the layer, the PU film includes the raw materials of following parts by weight: 70-100 parts of mixed resin, 20-30 parts of curing agent, 5-8 parts of flatting agent, 3-5 parts of antistatic agent, 3-5 parts of wetting agent and 0-2 parts of flavoring agent.
2. The PU material for wrapping pillow memory cotton core according to claim 1, wherein: the PU material includes that thickness is 0.3 mm's PET antistatic membrane top layer, thickness are 0.08 mm's TPU elastic membrane, thickness are 0.1 mm's PU film.
3. The PU material for wrapping pillow memory cotton core according to claim 1, wherein: the PU material includes that thickness is 0.1 mm's PET antistatic membrane top layer, thickness are 0.05 mm's TPU elastic membrane, thickness are 0.05 mm's PU film.
4. The PU material for wrapping pillow memory cotton core according to claim 1, wherein: the PU material includes that thickness is 0.5 mm's PET antistatic membrane top layer, thickness are 0.1 mm's TPU elastic membrane, thickness are 0.15 mm's PU film.
5. The PU material for wrapping pillow memory cotton core according to claim 1, wherein: the hydrogel layer is formed by blending siloxane-modified polyurethane and nano silicon dioxide, in the siloxane-modified polyurethane molecule, a skeleton group is 3-mercapto-propyl methyl dimethoxy silane, a solubilizing group is hydroxyl, a hydrophobic group is 1-amino-3, 5-dimethyl-cyclohexane, the mass fraction of the added 3-mercapto-propyl methyl dimethoxy silane is 30-50% of the total mass of reactants, and the particle size of the nano silicon dioxide particles is 100-200 nm.
6. The PU material for wrapping pillow memory cotton core according to claim 1, wherein: the preparation method of the PU film comprises the following steps: weighing the raw materials according to the weight ratio, mixing and stirring the raw materials uniformly, and uniformly coating the mixed solution on a substrate for drying to obtain the PU film.
7. The PU material for wrapping pillow memory cotton core according to claim 1, wherein: the mixed resin is prepared from the following components in a ratio of 3-5: 1, the curing agent is a dimer curing agent or a trimer curing agent, the delustering agent is a silicon dioxide delustering agent, the antistatic agent is an imine salt electrostatic agent, the wetting agent is isopropyl myristate and isopropyl palmitate, and the flavoring agent is microcapsule essence.
8. A method for preparing a PU material for wrapping pillow memory cotton core, comprising the PU material for wrapping pillow memory cotton core of any one of claims 1-7, characterized in that: the method specifically comprises the following steps:
s11: taking a PET antistatic film, a TPU elastic film, a PU film and hydrogel;
s12: uniformly coating a layer of hydrogel on each of two sides of the TPU elastic membrane;
s13: respectively attaching the PET antistatic film and the PU film to two sides of the TPU elastic film, and manually troweling to prepare a semi-finished material;
s14: sending the semi-finished product material into an oven for primary baking;
s15: trimming redundant edges and corners of the semi-finished product material after primary baking, and trowelling the semi-finished product material again;
s16: sending the semi-finished product cut by the S15 into an oven for secondary baking, further shrinking the semi-finished product material, and perfectly attaching the layers to prepare a finished product PU material;
s17: and (4) finishing the finished PU material, trimming redundant parts and burrs, and finally rolling.
9. The preparation method of the PU material for wrapping the pillow memory cotton core according to claim 8, wherein the preparation method comprises the following steps: the thickness of the hydrogel coating in the step S12 is 0.15-0.2mm, the temperature of the oven in the preliminary baking in the step S14 is set at 125 ℃ and the baking time is 45-60S.
10. The preparation method of the PU material for wrapping the pillow memory cotton core according to claim 8, wherein the preparation method comprises the following steps: in the step S16, the temperature of the oven is set at 125-130 ℃ in the secondary baking, and the baking time is 50-60S.
CN202111468427.0A 2021-12-03 2021-12-03 PU material for wrapping pillow memory cotton core and preparation method thereof Pending CN114103362A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005003088U1 (en) * 2005-02-25 2005-07-07 Chung, Ching-Ming Composite film for transfer printing on substrate, e.g. of leather, woven material or plastics, e.g. polyurethane, has peelable polyethylene terephthalate film on thermoplastic polyurethane protective layer over printed thermoplastic layer
CN103437195A (en) * 2013-08-16 2013-12-11 东莞市雄林新材料科技有限公司 Sewing-free hot melt adhesive TPU-PU leather and preparation method thereof
CN204446269U (en) * 2014-12-01 2015-07-08 珠海国佳新材股份有限公司 A kind of gel-ice pad
CN105459545A (en) * 2014-09-13 2016-04-06 顾方钟 Fabric with characteristics of memory property, static electricity resistance, radiation resistance, antibacterial property and mite prevention
CN111171494A (en) * 2018-11-12 2020-05-19 中国科学院化学研究所 Impact-resistant shear-thickening polyurethane hydrogel and preparation method thereof
CN211591632U (en) * 2019-12-27 2020-09-29 江苏蓝丝羽家用纺织品有限公司 Prevent gliding resistant washing protection type quilt cover of inner core

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005003088U1 (en) * 2005-02-25 2005-07-07 Chung, Ching-Ming Composite film for transfer printing on substrate, e.g. of leather, woven material or plastics, e.g. polyurethane, has peelable polyethylene terephthalate film on thermoplastic polyurethane protective layer over printed thermoplastic layer
CN103437195A (en) * 2013-08-16 2013-12-11 东莞市雄林新材料科技有限公司 Sewing-free hot melt adhesive TPU-PU leather and preparation method thereof
CN105459545A (en) * 2014-09-13 2016-04-06 顾方钟 Fabric with characteristics of memory property, static electricity resistance, radiation resistance, antibacterial property and mite prevention
CN204446269U (en) * 2014-12-01 2015-07-08 珠海国佳新材股份有限公司 A kind of gel-ice pad
CN111171494A (en) * 2018-11-12 2020-05-19 中国科学院化学研究所 Impact-resistant shear-thickening polyurethane hydrogel and preparation method thereof
CN211591632U (en) * 2019-12-27 2020-09-29 江苏蓝丝羽家用纺织品有限公司 Prevent gliding resistant washing protection type quilt cover of inner core

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张大省等: "《超细纤维生产技术及应用》", 北京：中国中医药出版社, pages: 348 - 353 *

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