CN108773118B - Silica gel composite bath towel and preparation method thereof - Google Patents
Silica gel composite bath towel and preparation method thereof Download PDFInfo
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- CN108773118B CN108773118B CN201810454229.0A CN201810454229A CN108773118B CN 108773118 B CN108773118 B CN 108773118B CN 201810454229 A CN201810454229 A CN 201810454229A CN 108773118 B CN108773118 B CN 108773118B
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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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K7/00—Body washing or cleaning implements
- A47K7/02—Bathing sponges, brushes, gloves, or similar cleaning or rubbing implements
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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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
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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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
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- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention provides a silica gel composite bath towel and a preparation method thereof, wherein the silica gel composite bath towel comprises a silica gel composite layer, a water absorbing layer and a lining layer which are sequentially arranged from top to bottom, the silica gel composite layer is formed by compounding a coating material layer penetrating through a base material layer, the thickness of the coating material layer higher than the base material layer is less than 1mm, and the area of the coating material layer is more than 50% of the area of the base material layer. The coating material of the silica gel composite bath towel and the polar functional group on the surface of the base material can generate intermolecular acting force, the coating material and the base material can realize good compounding under the action of high pressure in the preparation process, and the coating material can be uniformly coated on the base material. The silica gel composite bath towel obtained by the invention is moderate in hardness, can easily take away dirt on the surface layer of skin, does not damage the skin, and is excellent in air permeability. The preparation method disclosed by the invention is simple to operate, can realize batch production, is uniform in coating thickness and is not easy to fall off.
Description
Technical Field
The invention belongs to the field of bath products, and particularly relates to a silica gel composite bath towel and a preparation method thereof.
Background
The bath towel is a daily bath article for people, and the common bath towels on the market at present comprise a fabric bath towel with higher surface roughness and a bath towel integrally formed by high polymers. The raw materials of the bath towel with high roughness are mostly fabrics doped with fibers such as natural cotton, hemp and the like, and the bath towel made of the materials has to have higher roughness for removing stains on the surface of the skin, and the skin is easily damaged by the higher roughness. The bathing towel integrally formed by the high polymer has a smooth surface and can better remove dirt on the surface of skin, but the bathing towel prepared by the pure high polymer has larger thickness, is not soft enough and has more materials.
Chinese patent CN201220246570.5 discloses a bath towel, which comprises a first sleeve and a second sleeve, wherein the first sleeve comprises a bag-shaped bath towel cloth woven by nylon cloth, the open end of the bath towel cloth is sewed with an elastic opening, the outer surface of the bath towel cloth is provided with a fabric layer, the second sleeve comprises a silica gel net, a plurality of friction balls are arranged on the silica gel net, and the second sleeve is arranged outside the first sleeve. Although the silica gel is also disclosed to be compounded with the fabric, the silica gel and the bath towel cloth are simply compounded, the two phases of the silica gel and the bath towel cloth have weak binding force, and the silica gel layer is easy to fall off in the using process. In addition, the bath towel obtained by compounding the bath towel cloth and the silica gel is not easy to be uniformly coated in the preparation process, and the hardness of the silica gel also influences the service performance.
Disclosure of Invention
In order to solve the technical problems, the invention provides a bath towel comprising a silica gel composite layer, wherein silica gel is hung on the bath towel cloth, a water absorbing layer and a lining layer are arranged below the silica gel composite layer, and the obtained bath towel hanging material is not easy to fall off, can absorb partial moisture on the surface of skin in the using process and is comfortable to use.
The invention mainly aims to provide a silica gel composite bath towel.
The invention also aims to provide a preparation method of the silica gel composite bath towel.
The silica gel composite bath towel comprises a silica gel composite layer, a water absorbing layer and a lining layer which are sequentially arranged from top to bottom, wherein the silica gel composite layer is formed by compounding a coating material layer penetrating through a base material layer, the thickness of the coating material layer, which is higher than the base material layer, is less than 1mm, the area of the coating material layer is more than 50% of the area of the base material layer, and the base material is bath towel cloth.
According to the silica gel composite bath towel of the embodiment of the invention, preferably, the bath towel cloth is woven fabric. The woven fabric is formed by interlacing warp and weft in a picking mode of a weaving machine, and the weave of the woven fabric generally has three main types of plain weave, twill weave and satin weave and changes of the plain weave, the twill weave and the satin weave. The fabric is firm, stiff and smooth and difficult to deform due to the fact that weaving methods are staggered in warp and weft, and the fabric is classified from components including cotton fabrics, silk fabrics, hemp fabrics, chemical fiber fabrics, blended fabrics and interwoven fabrics of the cotton fabrics, the silk fabrics, the hemp fabrics and the chemical fiber fabrics. The woven fabric is formed by interlacing warp and weft directions in a picking mode of a weaving machine, the weave generally comprises plain weave, twill weave and satin weave, and silica gel mixed liquid is hung on the woven fabric, so that the effect is the same as that of fingerprints on a palm, dirt on the surface layer of skin can be easily taken away, and meanwhile, the pain is not caused.
According to the silica gel composite bath towel of the embodiment of the invention, preferably, the coating material of the coating material layer comprises the following raw materials in parts by weight: 100 parts of liquid silica gel, 1-45 parts of annular polydimethylsiloxane and 1 part of hardening agent;
the liquid silica gel comprises a component A and a component B, the weight ratio of the component A to the component B is 1-9:1,
the component A comprises the following raw materials in parts by weight: 12-15 parts of polymethyl vinyl siloxane, 12-15 parts of hydroxy polydimethylsiloxane, 20-25 parts of vinyl MQ silicon resin and 0.015-0.03 part of catalyst;
the component B comprises the following raw materials in parts by weight: 12-15 parts of vinyl polydimethylsiloxane, 12-15 parts of hydroxy polydimethylsiloxane, 20-25 parts of vinyl MQ silicon resin and 0.002-0.005 part of cross-linking agent.
The silica gel composite bath towel provided by the invention comprises a silica gel coating material layer and a base material layer, wherein the silica gel coating material layer penetrates through the base material, a thin silica gel coating layer is arranged on the outer surface of the base material, and the area of the silica gel coating layer is more than 50% of the area of the base material, namely, the silica gel coating layer can be partially coated or completely coated. The silica gel hanging coating is a silica gel mixed solution and consists of A, B rubber, cyclic polydimethylsiloxane and a hardening agent, the silica gel mixed solution formed by the components has good flowing property and excellent transparency, the tear strength of the silica gel mixed solution is more than 35N/m, the use temperature range is wide, the silica gel mixed solution can be used at the temperature of-60-200 ℃, the hardness is moderate, the elongation at break is high, the silica gel mixed solution can be well compounded with a bath towel base material, and the silica gel mixed solution is not easy to fall off. In the using process, the silica gel layer on the outer surface of the silica gel composite bath towel is in contact with the skin, so that the dirt on the surface layer of the skin can be easily taken away while the skin is not damaged. The silica gel composite bath towel provided by the invention is convenient to use, does not damage skin, is moderate in hardness and good in air permeability.
According to the silica gel composite bath towel of the embodiment of the invention, preferably, the mass fractions of the vinyl groups in the vinyl MQ silicone resin in the A component and the B component are both 2.8-3.2%.
According to the silica gel composite bath towel of the embodiment of the invention, preferably, the catalyst is a platinum catalyst.
According to the silica gel composite bath towel provided by the embodiment of the invention, preferably, the hardening agent is fumed silica.
The preparation method of the silica gel composite bath towel comprises the following steps:
(1) uniformly mixing the component A and the component B of the liquid silica gel, and removing bubbles to obtain the liquid silica gel;
(2) adding cyclic polydimethylsiloxane and a hardening agent into the liquid silica gel, and uniformly mixing to obtain a coating material;
(3) and (3) coating the coating material obtained in the step (2) on a base material, standing under the pressure of 20-40bar, curing to obtain the silica gel composite bath layer, and sewing the silica gel composite layer, the water absorption layer and the lining layer to obtain the silica gel composite bath towel.
According to the preparation method of the silica gel composite bath towel, the hanging coating material is prepared, then the hanging coating material and the base material are compounded under high pressure, and under high pressure, the liquid hanging coating material can permeate into the texture of the base material, so that good compounding between the silica gel mixed liquid and the base material is realized, the adhesion degree is enhanced, and stripping and falling in the using process are avoided.
According to the method for preparing the silica gel composite bath towel, the viscosity of the coating material in the step (2) is preferably 40-60 Pa.s. The inventor researches that when the viscosity of the suspension coating material-silica gel mixed liquid reaches 40-60Pa.s, the silica gel mixed liquid can be well compounded with the base material in the suspension coating process, and the phenomena of suspension coating failure and non-uniform suspension coating can be avoided.
According to the preparation method of the silica gel composite bath towel, in the step (3), the standing time is preferably 1-3 min. The silica gel mixed liquid and the base material can be better fused by standing, and intermolecular force can be generated between the functional group in the silica gel mixed liquid and the functional group on the surface of the base material to realize good compounding.
According to the preparation method of the silica gel composite bath towel of the embodiment of the invention, preferably, in the step (3), the curing condition is that the temperature is 70-90 ℃ and the curing time is 2-4 min. Through medium-temperature short-time curing, the silica gel mixed solution provided by the invention can realize good curing on a base material, and the bath towel with high firmness is obtained.
The invention has the beneficial effects that:
the invention provides a silica gel composite bath towel and a preparation method thereof, wherein the silica gel composite bath towel comprises a silica gel composite layer, a water absorbing layer and a lining layer which are sequentially arranged from top to bottom, the silica gel composite layer is formed by compounding a coating material layer penetrating through a base material layer, the thickness of the coating material layer higher than the base material layer is less than 1mm, and the area of the coating material layer is more than 50% of the area of the base material layer. The self-made silica gel material containing liquid silica gel is hung on the bath towel cloth, the hanging material has high transparency, tensile strength and tear strength, intermolecular acting force can be generated between the hanging material and polar functional groups on the surface of a base material, in the preparation process, the hanging material and the base material can be well compounded under the action of high pressure, and the hanging material can be uniformly hung on the base material. The silica gel composite bath towel obtained by the invention is moderate in hardness, can easily take away dirt on the surface layer of skin, does not damage the skin, and is excellent in air permeability. The preparation method disclosed by the invention is simple to operate, can realize mass production, is uniform in coating thickness, is high in adhesion degree of the two-phase material, and is not easy to fall off.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a silica gel composite bath towel provided by the present invention;
fig. 2 is a schematic top view of the silica gel composite bath towel provided by the present invention.
FIG. 1-silica gel composite layer; 2-a water-absorbing layer; 3-a lining layer; 11-hanging a coating material layer; 12-layer of matrix material.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1
The silica gel composite bath towel comprises a silica gel composite layer 1, a water absorbing layer 2 and a lining layer 3 which are sequentially arranged from top to bottom, wherein the silica gel composite layer 1 is formed by compounding a coating material layer 11 penetrating through a base material layer 12, the thickness of the coating material layer 11, which is higher than the base material layer 12, is 0.8mm, the area of the coating material layer 11 is 50% of the area of the base material layer 12, and the base material is bath towel cloth;
the coating material comprises the following raw materials in parts by weight: 100 parts of liquid silica gel, 1 part of cyclic polydimethylsiloxane and 1 part of gas phase method white carbon black;
the liquid silica gel comprises a component A and a component B, the weight ratio of the component A to the component B is 1:1,
the component A comprises the following raw materials in parts by weight: 12 parts of polymethyl vinyl siloxane, 13.965 parts of hydroxy polydimethylsiloxane, 25 parts of vinyl MQ silicon resin and 0.03 part of platinum catalyst;
the component B comprises the following raw materials in parts by weight: 12 parts of vinyl polydimethylsiloxane, 12 parts of hydroxy polydimethylsiloxane, 25 parts of vinyl MQ silicon resin and 0.005 part of cross-linking agent, wherein the thickness of the coating material on the surface of the silica gel composite bath towel is 0.8 mm.
The preparation method of the silica gel composite bath towel comprises the following steps:
(1) uniformly mixing the component A and the component B of the liquid silica gel, and removing bubbles to obtain the liquid silica gel;
(2) adding cyclic polydimethylsiloxane and a hardening agent into the liquid silica gel, and uniformly mixing to obtain a coating material; the viscosity of the suspension coating material is 60Pa.s, and the density is 1.1g/cm3The hardness is 40HA, the elongation is 450%, and the tear strength is 35 KN/m;
(3) and (3) coating the coating material obtained in the step (2) on a base material, standing for 1min under the pressure of 40bar, curing for 2min at 90 ℃ to obtain the silica gel composite layer 1, and sewing the silica gel composite layer 1, the water absorbing layer 2 and the lining layer 3 to obtain the silica gel composite bath towel.
Example 2
The silica gel composite bath towel comprises a silica gel composite layer 1, a water absorbing layer 2 and a lining layer 3 which are sequentially arranged from top to bottom, wherein the silica gel composite layer 1 is formed by compounding a coating material layer 11 penetrating through a base material layer 12, the thickness of the coating material layer 11, which is higher than the base material layer 12, is 0.6mm, the area of the coating material layer 11 is 80% of the area of the base material layer 12, and the base material is bath towel cloth;
the coating material comprises the following raw materials in parts by weight: 100 parts of liquid silica gel, 45 parts of cyclic polydimethylsiloxane and 1 part of fumed silica;
the liquid silica gel comprises a component A and a component B, the weight ratio of the component A to the component B is 1:1,
the component A comprises the following raw materials in parts by weight: 15 parts of polymethyl vinyl siloxane, 15 parts of hydroxy polydimethylsiloxane, 20 parts of vinyl MQ silicon resin and 0.015 part of platinum catalyst;
the component B comprises the following raw materials in parts by weight: 15 parts of vinyl polydimethylsiloxane, 14.983 parts of hydroxy polydimethylsiloxane, 20 parts of vinyl MQ silicon resin and 0.002 part of cross-linking agent, wherein the thickness of the coating material on the surface of the silica gel composite bath towel is 0.6 mm.
The preparation method of the silica gel composite bath towel comprises the following steps:
(1) uniformly mixing the component A and the component B of the liquid silica gel, and removing bubbles to obtain the liquid silica gel;
(2) adding cyclic polydimethylsiloxane and a hardening agent into the liquid silica gel, and uniformly mixing to obtain a coating material; the viscosity of the suspension coating material is 50Pa.s, and the density is 1.2g/cm3The hardness is 30HA, the elongation is 440%, and the tear strength is 40 KN/m;
(3) and (3) coating the coating material obtained in the step (2) on a base material, standing for 2min under the pressure of 30bar, curing for 4min at 70 ℃ to obtain the silica gel composite layer 1, and sewing the silica gel composite layer 1, the water absorbing layer 2 and the lining layer 3 to obtain the silica gel composite bath towel.
Example 3
The silica gel composite bath towel comprises a silica gel composite layer 1, a water absorbing layer 2 and a lining layer 3 which are sequentially arranged from top to bottom, wherein the silica gel composite layer 1 is formed by compounding a coating material layer 11 penetrating through a base material layer 12, the thickness of the coating material layer 11, which is higher than the base material layer 12, is 0.8mm, the area of the coating material layer 11 is 80% of the area of the base material layer 12, the base material is bath towel cloth, and the bath towel cloth is woven fabric;
the coating material comprises the following raw materials in parts by weight: 100 parts of liquid silica gel, 15 parts of cyclic polydimethylsiloxane and 1 part of fumed silica;
the liquid silica gel comprises a component A and a component B, the weight ratio of the component A to the component B is 1:1,
the component A comprises the following raw materials in parts by weight: 14 parts of polymethyl vinyl siloxane, 12 parts of hydroxy polydimethylsiloxane, 24 parts of vinyl MQ silicon resin and 0.012 part of platinum catalyst;
the component B comprises the following raw materials in parts by weight: 14 parts of vinyl polydimethylsiloxane, 15 parts of hydroxyl polydimethylsiloxane, 20.976 parts of vinyl MQ silicon resin and 0.004 part of cross-linking agent, wherein the thickness of the coating material on the surface of the silica gel composite bath towel is 0.8 mm.
The preparation method of the silica gel composite bath towel comprises the following steps:
(1) uniformly mixing the component A and the component B of the liquid silica gel, and removing bubbles to obtain the liquid silica gel;
(2) adding cyclic polydimethylsiloxane and a hardening agent into the liquid silica gel, and uniformly mixing to obtain a coating material; the viscosity of the suspension coating material is 50Pa.s, and the density is 1.1g/cm3Hardness of 35HA, elongation of 460%, tear strength of 50 KN/m;
(3) and (3) coating the coating material obtained in the step (2) on a base material, standing for 2min under the pressure of 25bar, curing for 3min at 70 ℃ to obtain the silica gel composite layer 1, and sewing the silica gel composite layer 1, the water absorbing layer 2 and the lining layer 3 to obtain the silica gel composite bath towel.
Example 4
The silica gel composite bath towel comprises a silica gel composite layer 1, a water absorbing layer 2 and a lining layer 3 which are sequentially arranged from top to bottom, wherein the silica gel composite layer 1 is formed by compounding a coating material layer 11 penetrating through a base material layer 12, the thickness of the coating material layer 11, which is higher than the base material layer 12, is 1mm, the area of the coating material layer 11 is 90% of the area of the base material layer 12, the base material is bath towel cloth, and the bath towel cloth is woven fabric;
the coating material comprises the following raw materials in parts by weight: 100 parts of liquid silica gel, 15 parts of cyclic polydimethylsiloxane and 1 part of fumed silica;
the liquid silica gel comprises a component A and a component B, the weight ratio of the component A to the component B is 9:1,
the component A comprises the following raw materials in parts by weight: 14 parts of polymethyl vinyl siloxane, 12 parts of hydroxy polydimethylsiloxane, 24 parts of vinyl MQ silicon resin and 0.012 part of platinum catalyst;
the component B comprises the following raw materials in parts by weight: 14 parts of vinyl polydimethylsiloxane, 15 parts of hydroxy polydimethylsiloxane, 20.976 parts of vinyl MQ silicon resin and 0.004 part of cross-linking agent,
the thickness of the hanging and coating material on the surface of the silica gel composite bath towel is 1 mm.
The preparation method of the silica gel composite bath towel comprises the following steps:
(1) uniformly mixing the component A and the component B of the liquid silica gel, and removing bubbles to obtain the liquid silica gel;
(2) adding cyclic polydimethylsiloxane and a hardening agent into the liquid silica gel, and uniformly mixing to obtain a coating material; the viscosity of the suspension coating material is 40Pa.s, and the density is 1.1g/cm3The hardness is 35HA, the elongation is 445%, and the tear strength is 45 KN/m;
(3) and (3) coating the coating material obtained in the step (2) on a base material, standing for 3min under the pressure of 20bar, curing for 3min at 80 ℃ to obtain the silica gel composite layer 1, and sewing the silica gel composite layer 1, the water absorbing layer 2 and the lining layer 3 to obtain the silica gel composite bath towel.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. The silica gel composite bath towel is characterized by comprising a silica gel composite layer, a water absorbing layer and a lining layer which are sequentially arranged from top to bottom, wherein the silica gel composite layer is formed by compounding a coating material layer penetrating through a base material layer, the thickness of the coating material layer higher than the base material layer is less than 1mm, the area of the coating material layer is more than 50% of the area of the base material layer, and the base material is bath towel cloth;
the coating material of the coating material layer comprises the following raw materials in parts by weight: 100 parts of liquid silica gel, 1-45 parts of annular polydimethylsiloxane and 1 part of hardening agent;
the liquid silica gel comprises a component A and a component B, the weight ratio of the component A to the component B is 1-9:1,
the component A comprises the following raw materials in parts by weight: 12-15 parts of polymethyl vinyl siloxane, 12-15 parts of hydroxy polydimethylsiloxane, 20-25 parts of vinyl MQ silicon resin and 0.015-0.03 part of catalyst;
the component B comprises the following raw materials in parts by weight: 12-15 parts of vinyl polydimethylsiloxane, 12-15 parts of hydroxy polydimethylsiloxane, 20-25 parts of vinyl MQ silicon resin and 0.002-0.005 part of cross-linking agent.
2. The silica gel composite bath towel according to claim 1, wherein the bath towel cloth is a woven fabric.
3. The silicone composite bath towel according to claim 1, wherein the mass fraction of vinyl groups in the vinyl MQ silicone resin in both the A component and the B component is 2.8-3.2%.
4. The silica gel composite bath towel of claim 1, wherein the catalyst is a platinum catalyst.
5. The silica gel composite bath towel of claim 1, wherein the stiffening agent is fumed silica.
6. The method of making a silica gel composite bath towel according to claim 5, comprising the steps of:
(1) uniformly mixing the component A and the component B of the liquid silica gel, and removing bubbles to obtain the liquid silica gel;
(2) adding cyclic polydimethylsiloxane and a hardening agent into the liquid silica gel, and uniformly mixing to obtain a coating material;
(3) and (3) coating the coating material obtained in the step (2) on a base material, standing under the pressure of 20-40bar, curing to obtain the silica gel composite layer, and sewing the silica gel composite layer, the water absorbing layer and the lining layer to obtain the silica gel composite bath towel.
7. The method of claim 6, wherein the viscosity of the coating material in step (2) is 40 to 60 Pa.s.
8. The method for preparing a silica gel composite bath towel according to claim 6, wherein in the step (3), the standing time is 1-3 min.
9. The method for preparing a silica gel composite bath towel according to claim 6, wherein in the step (3), the curing condition is that the temperature is 70-90 ℃ and the curing time is 2-4 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810454229.0A CN108773118B (en) | 2018-05-14 | 2018-05-14 | Silica gel composite bath towel and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810454229.0A CN108773118B (en) | 2018-05-14 | 2018-05-14 | Silica gel composite bath towel and preparation method thereof |
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| CN108773118B true CN108773118B (en) | 2020-04-10 |
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| CN201810454229.0A Active CN108773118B (en) | 2018-05-14 | 2018-05-14 | Silica gel composite bath towel and preparation method thereof |
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| CN2817704Y (en) * | 2005-04-13 | 2006-09-20 | 李从棉 | Antibacterial nanometer bath towel |
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| CN201798647U (en) * | 2010-09-07 | 2011-04-20 | 尚尔宁 | Novel bathing towel |
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| CN202568013U (en) * | 2012-04-27 | 2012-12-05 | 李晨 | Bath towel |
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| CN105754543A (en) * | 2016-04-06 | 2016-07-13 | 深圳市欧普特工业材料有限公司 | Organic silicon pouring sealant containing functional group MQ resin for LED and preparation method of organic silicon pouring sealant |
| CN106667346A (en) * | 2015-11-10 | 2017-05-17 | 如皋市下原科技创业服务有限公司 | Moisture-absorption oil-proof towel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20120210517A1 (en) * | 2011-02-18 | 2012-08-23 | Nimeshkumar Patel | Perfect gym towel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4350246A (en) * | 1980-04-21 | 1982-09-21 | The Hartford Corporation | Releasable surgical products and process of formation thereof |
| CN1066581A (en) * | 1991-05-14 | 1992-12-02 | 邵伟第 | Latex permeated bath towel and manufacture method |
| CN2817704Y (en) * | 2005-04-13 | 2006-09-20 | 李从棉 | Antibacterial nanometer bath towel |
| CN101816541A (en) * | 2010-03-11 | 2010-09-01 | 义乌市鑫挺人造革有限公司 | Wet process PU cleaning cloth and manufacturing method thereof |
| CN201798647U (en) * | 2010-09-07 | 2011-04-20 | 尚尔宁 | Novel bathing towel |
| CN201822765U (en) * | 2010-10-20 | 2011-05-11 | 李季 | Wash towel |
| CN202568013U (en) * | 2012-04-27 | 2012-12-05 | 李晨 | Bath towel |
| CN202619520U (en) * | 2012-05-29 | 2012-12-26 | 徐振杰 | Bath towel |
| CN203169040U (en) * | 2013-01-18 | 2013-09-04 | 吴从送 | Bath towel for cleaning back |
| CN106667346A (en) * | 2015-11-10 | 2017-05-17 | 如皋市下原科技创业服务有限公司 | Moisture-absorption oil-proof towel |
| CN105754543A (en) * | 2016-04-06 | 2016-07-13 | 深圳市欧普特工业材料有限公司 | Organic silicon pouring sealant containing functional group MQ resin for LED and preparation method of organic silicon pouring sealant |
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| Publication number | Publication date |
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| CN108773118A (en) | 2018-11-09 |
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