Solid washing material

Abstract

The invention provides a solid washing material. The solid washing material comprises a water-soluble phase and a non-water-soluble phase which are blended; the water-soluble phase comprises a water-soluble polymer material and a washing material; and the non-water-soluble phase comprises a non-water-soluble material. The water-soluble phase in the solid washing material can be slowly dissolved in water, the washing material is released, and the slow-release effect of the washing material is achieved; the solid washing material is used in a washing device, can keep the inherent form and physicochemical properties for a long time, does not need to independently design an automatic feeding device, is dissolved out when encountering water, can be repeatedly used, and is simple and convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of washing, and in particular relates to a solid washing material. Background Art

[0002] As a daily necessity, cleaning products have evolved into many categories, such as laundry detergent, laundry powder, laundry beads, etc. For cleaning, the main stains include oil stains, pigments, solid stains, etc. The core detergent ingredient for removing oil stains is surfactants; the detergent ingredient for removing pigments is peroxide materials or enzymes that can decompose pigments; the detergent ingredient for removing solid stains is chelates or high molecular polymers.

[0003] At present, cleaning products mainly compound the above materials and then add them to a carrier. Adding them to a solid carrier makes it a washing powder, adding them to a liquid carrier makes it a laundry liquid, and adding them to a gel-like substance makes it a laundry beads. The reason for adding them to the carrier is mainly to facilitate consumers to take them in a quantitative manner. At present, the main problem with this type of cleaning product is that adding them to the carrier increases the production cost and transportation cost. In addition, as a consumable, consumers need to add them separately each time they use them.

[0004] Based on such drawbacks, it is necessary to study a cleaning product that can be used multiple times without adding each time. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention aims to provide a solid washing material. The water-soluble phase in the solid washing material can be slowly dissolved in water to release the washing material, thereby achieving a slow-release effect of the washing material; the solid washing material is used in a washing device, and there is no need to design a separate self-dispensing device. It dissolves in water and can be used multiple times, which is simple and convenient.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a solid washing material, the solid washing material comprising a blended water-soluble phase and a water-insoluble phase;

[0008] The water-soluble phase includes a water-soluble polymer material and a washing material;

[0009] The water-insoluble phase includes water-insoluble materials.

[0010] In some embodiments of the present invention, the water-soluble phase and the non-aqueous-soluble phase are both continuous phases.

[0011] In some embodiments of the present invention, the mass ratio of the water-soluble phase to the non-aqueous phase is (30-70):(30-70).

[0012] In some embodiments of the present invention, the mass ratio of the water-soluble polymer material to the washing material is (50-80):(20-50).

[0013] In some embodiments of the present invention, the washing material is selected from one or more of surfactants, peroxides, enzymes, chelates and polymers.

[0014] In some embodiments of the present invention, the water-soluble polymer material is selected from one or more of polyvinyl alcohol, polyethylene glycol, polyethylene oxide, polyacrylamide and polyvinyl pyrrolidone.

[0015] In some embodiments of the present invention, the molecular weight of the water-soluble polymer material is 1 to 1 million.

[0016] In some embodiments of the present invention, the molecular weight of the polyvinyl alcohol is 800-5000.

[0017] In some embodiments of the present invention, the molecular weight of the polyethylene glycol is 100-4000.

[0018] In some embodiments of the present invention, the molecular weight of the polyethylene oxide is 50,000 to 1,000,000.

[0019] In some embodiments of the present invention, the water-insoluble material is a water-insoluble polymer material.

[0020] In some embodiments of the present invention, the water-insoluble polymer material is selected from one or more of polyolefins, polyesters and ethylene-vinyl acetate copolymers.

[0021] In some embodiments of the present invention, the molecular weight of the water-insoluble polymer material is 20,000 to 300,000.

[0022] In some embodiments of the present invention, the washing material comprises peroxide and / or enzyme, the water-soluble polymer material is polyethylene oxide with a molecular weight of 100,000 to 1,000,000, the water-insoluble material is polycaprolactone with a molecular weight of 30,000 to 100,000, and the mass ratio of the water-soluble phase to the water-insoluble phase is 55:45.

[0023] In some embodiments of the present invention, the washing material contains peroxide and / or enzyme, the water-soluble polymer material is polyethylene oxide with a molecular weight of 100,000 to 1,000,000, the water-insoluble material is ethylene-vinyl acetate copolymer with a molecular weight of 30,000 to 100,000, and the mass ratio of the water-soluble phase to the water-insoluble phase is 55:45.

[0024] In some embodiments of the present invention, the washing material does not contain peroxide and enzyme, the water-soluble polymer material is polyethylene oxide with a molecular weight of 100,000 to 1,000,000, the water-insoluble material is an ethylene-octene block copolymer with a molecular weight of 50,000 to 200,000, and the mass ratio of the water-soluble phase to the water-insoluble phase is 55:45.

[0025] In some embodiments of the present invention, the washing material does not contain peroxide and enzyme, the water-soluble polymer material is polyethylene oxide with a molecular weight of 100,000 to 1,000,000, the water-insoluble material is polybutylene terephthalate-adipate with a molecular weight of 20,000 to 100,000, and the mass ratio of the water-soluble phase to the water-insoluble phase is 55:45.

[0026] In some embodiments of the present invention, the tensile strength of the slow-release cleaning material is 5 to 20 MPa, and the elongation at break is 5% to 600%.

[0027] In some embodiments of the present invention, the short side size of the phase region of the water-soluble phase is 100 nm to 10 μm; the short side size of the phase region of the non-water-soluble phase is 100 nm to 10 μm.

[0028] In some embodiments of the present invention, the dissolution rate of the sustained-release detergent in water is 0.0001 g / L to 0.003 g / L.

[0029] In a second aspect, the present invention provides a solid washing material, the solid washing material comprising a blended water-soluble phase and a water-insoluble phase;

[0030] The aqueous phase contains a washing material;

[0031] The tensile strength of the solid washing material is 5MPa-20MPa, and the elongation at break is 5%-600%.

[0032] In some embodiments of the present invention, the short side size of the phase region of the water-soluble phase is 100 nm to 10 μm, and the short side size of the phase region of the water-insoluble phase is 100 nm to 10 μm.

[0033] In some embodiments of the present invention, the dissolution rate of the solid washing material in water is 0.0001 g / L to 0.003 g / L.

[0034] The dissolution rate test method is as follows: the solid aromatherapy material is prepared into a sample of 10 mm×10 mm×4 mm, with a mass of m1, and is rinsed with tap water at a flow rate of 2.5 L / min at room temperature. After the sample mass is constant, it is taken out and dried, and weighed, with a mass of m2. The volume of the water used for rinsing is v, and the dissolution rate = (m1-m2) / v;

[0035] The criterion for determining constant sample mass is: the mass difference before and after rinsing for 1 hour is less than 0.01 g;

[0036] All samples must be dried in a 60°C forced air drying oven before weighing, and the drying standard is that the mass difference before and after drying for 1 hour is less than 0.01g.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The solid washing material provided by the present invention comprises a blended water-soluble phase and a non-water-soluble phase, wherein the water-soluble phase can be continuously and slowly dissolved in a water environment to release the washing material, thereby achieving a sustained-release effect. The phase structure and sustained-release rate of the solid washing material are controllable and can be adjusted by adjusting the type, molecular weight, and ratio of the material. The solid washing material is used in a washing device to maintain its inherent morphology and physical and chemical properties for a long time, without the need to design a separate self-injection device, and it dissolves in water and can be used multiple times. Consumers do not need to add cleaning products each time, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of the structure of a solid washing material provided by an embodiment of the present invention;

[0040] Figure 2 This is a SEM image of the non-aqueous phase of the solid washing material provided in Example 1 of the present invention. DETAILED DESCRIPTION

[0041] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementations. It should be understood by those skilled in the art that the specific implementations are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0042] In a first aspect, an embodiment of the present invention provides a solid washing material, wherein the solid washing material comprises a blended water-soluble phase and a water-insoluble phase;

[0043] The water-soluble phase includes a water-soluble polymer material and a washing material;

[0044] The water-insoluble phase includes water-insoluble materials.

[0045] The solid washing material provided by the present invention is prepared into a water-soluble phase material by adding washing materials into water-soluble materials, and then the water-soluble phase material is blended with a non-water-soluble matrix. When the solid washing material is in a water environment, the surface water-soluble phase material will dissolve with water to release the washing material, and a porous structure will be formed on the matrix; the water flow further penetrates into the matrix along the pores, so that the water-soluble phase material in the inner layer of the matrix can also dissolve with water, thereby realizing the slow release of the washing material in the water environment. The solid washing material is used in a washing device, and there is no need to design a separate self-feeding device. It dissolves in water and can be used multiple times, which is simple and convenient.

[0046] In some embodiments of the present invention, the water-soluble phase and the non-aqueous-soluble phase are both continuous phases.

[0047] In the present invention, the continuous phase refers to the water-soluble phase or the non-water-soluble phase in the solid washing material as a continuous whole, which is a continuous network structure in the solid washing material. When the water-soluble phase and the non-water-soluble phase are both continuous phases, a co-continuous structure is formed, which can ensure that the water-soluble phase can be completely dissolved with water, and on the other hand, the continuous non-water-soluble phase can provide a certain support effect to prevent the solid washing material from collapsing during the dissolution of the water-soluble phase.

[0048] In some embodiments of the present invention, the mass ratio of the water-soluble phase to the non-aqueous phase is (30-70):(30-70); for example, it can be 30:70, 32:68, 35:65, 38:62, 40:60, 42:58, 45:55, 48:52, 50:50, 52:48, 55:45, 58:42, 60:40, 62:38, 65:35, 68:32 or 70:30, etc. Preferably, it is (40-60):(40-60).

[0049] In some embodiments of the present invention, the mass ratio of the water-soluble polymer material to the washing material is (50-80):(20-50); for example, it can be 50:50, 52:48, 55:45, 58:42, 60:40, 62:38, 65:35, 68:32, 70:30, 72:28, 75:25, 78:22 or 80:20, etc.

[0050] In some embodiments of the present invention, the washing material is selected from one or more of surfactants, peroxides, enzymes, chelates and polymers.

[0051] Among them, surfactants include but are not limited to nonionic surfactants, anionic surfactants, cationic surfactants, and zwitterionic surfactants;

[0052] Peroxides include but are not limited to sodium percarbonate, sodium perborate, potassium persulfate, etc.;

[0053] Enzymes include, but are not limited to, proteases and lipases;

[0054] Chelates include but are not limited to polyphosphates, aminocarboxylic acids, 1,3-diketones, hydroxycarboxylic acids, polyamines, etc.;

[0055] Polymers include, but are not limited to, polycarboxylates.

[0056] In the present invention, different washing materials have different heat-resistant temperatures, so it is necessary to select appropriate carrier materials and processing temperatures according to their components. For example, biological enzymes are usually inactivated above 60°C, so if thermal processing is used, the processing temperature cannot exceed 60°C; the decomposition temperature of sodium percarbonate is 120°C, so if thermal processing is used, the processing temperature cannot exceed 120°C; water-soluble polymer materials and non-water-soluble materials are preferably materials that are easy to process under these temperature conditions.

[0057] In some embodiments of the present invention, the water-soluble polymer material is selected from one or more of polyvinyl alcohol, polyethylene glycol, polyethylene oxide, polyacrylamide and polyvinyl pyrrolidone.

[0058] In some embodiments of the present invention, the molecular weight of the water-soluble polymer material is 100 to 1 million; for example, it can be 100, 300, 500, 800, 1000, 2000, 3000, 5000, 6000, 8000, 10,000, 20,000, 30,000, 50,000, 80,000, 10,000, 120,000, 150,000, 180,000, 200,000, 220,000, 250,000, 280,000, 300,000, 320,000, 350,000, 380,000, 400,000, 420,000, 450,000, 480,000, 500,000, 550,000, 600,000, 650,000, 700,000, 750,000, 800,000, 850,000, 900,000 or 1 million, etc.

[0059] In some embodiments of the present invention, the molecular weight of the polyvinyl alcohol is 800-5000; for example, it can be 800, 900, 1000, 1200, 1500, 1800, 2000, 2200, 2500, 2800, 3000, 3200, 3500, 3800, 4000, 4200, 4500, 4800 or 5000, etc.

[0060] In some embodiments of the present invention, the molecular weight of the polyethylene glycol is 100-4000; for example, it can be 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650, 700, 750, 800, 850, 900, 950, 1000, 1500, 2000, 2500, 3000, 3500 or 4000, etc.

[0061] In some embodiments of the present invention, the molecular weight of the polyethylene oxide is 50,000 to 1,000,000; for example, it can be 50,000, 80,000, 100,000, 120,000, 150,000, 180,000, 200,000, 220,000, 250,000, 280,000, 300,000, 320,000, 350,000, 380,000, 400,000, 420,000, 450,000, 480,000, 500,000, 550,000, 600,000, 650,000, 700,000, 750,000, 800,000, 850,000, 900,000 or 1,000,000, etc.

[0062] In some embodiments of the present invention, the water-insoluble material is a water-insoluble polymer material.

[0063] In some embodiments of the present invention, the water-insoluble polymer material is selected from one or more of polyolefins, polyesters and ethylene-vinyl acetate copolymers.

[0064] In some embodiments of the present invention, the molecular weight of the non-water-soluble polymer material is 20,000 to 300,000; for example, it can be 20,000, 30,000, 50,000, 80,000, 100,000, 120,000, 150,000, 180,000, 200,000, 220,000, 250,000, 280,000 or 300,000, etc.

[0065] In some embodiments of the present invention, the washing material comprises peroxide and / or enzyme, the water-soluble polymer material is polyethylene oxide with a molecular weight of 100,000 to 1,000,000 (for example, 100,000, 120,000, 150,000, 180,000, 200,000, 220,000, 250,000, 280,000, 300,000, 320,000, 350,000, 380,000, 400,000, 420,000, 450,000, 480,000, 500,000, 550,000, 600,000, 650,000, 700,000, 750,000, 800,000, 850,000, 900,000 or 1,000,000, etc.), the water-insoluble material is polycaprolactone with a molecular weight of 30,000 to 100,000 (for example, 30,000, 40,000, 50,000, 60,000, 70,000, 80,000, 90,000 or 100,000, etc.), and the mass ratio of the water-soluble phase to the water-insoluble phase is 55:45.

[0066] In some embodiments of the present invention, the washing material comprises peroxide and / or enzyme, the water-soluble polymer material is polyethylene oxide with a molecular weight of 100,000 to 1,000,000 (for example, 100,000, 120,000, 150,000, 180,000, 200,000, 220,000, 250,000, 280,000, 300,000, 320,000, 350,000, 380,000, 400,000, 420,000, 450,000, 480,000, 500,000, 550,000, 600,000, 650,000, 700,000, 750,000, 800,000, 850,000, 900,000 or 1,000,000, etc.), the water-insoluble material is ethylene-vinyl acetate copolymer with a molecular weight of 30,000 to 100,000 (for example, 30,000, 40,000, 50,000, 60,000, 70,000, 80,000, 90,000 or 100,000, etc.), and the mass ratio of the water-soluble phase to the water-insoluble phase is 55:45.

[0067] In some embodiments of the present invention, the washing material does not contain peroxide and enzyme, the water-soluble polymer material is polyethylene oxide with a molecular weight of 100,000 to 1,000,000 (for example, 100,000, 120,000, 150,000, 180,000, 200,000, 220,000, 250,000, 280,000, 300,000, 320,000, 350,000, 380,000, 400,000, 420,000, 450,000, 480,000, 500,000, 550,000, 600,000, 650,000, 700,000, 750,000, 800,000, 850,000, 900,000 or 1,000,000, etc.), the water-insoluble material is an ethylene-octene block copolymer with a molecular weight of 50,000 to 200,000 (for example, 50,000, 60,000, 80,000, 100,000, 120,000, 130,000, 150,000, 160,000, 180,000 or 200,000, etc.), and the mass ratio of the water-soluble phase to the water-insoluble phase is 55:45.

[0068] In some embodiments of the present invention, the washing material does not contain peroxide and enzyme, the water-soluble polymer material is polyethylene oxide with a molecular weight of 100,000 to 1,000,000 (for example, 100,000, 120,000, 150,000, 180,000, 200,000, 220,000, 250,000, 280,000, 300,000, 320,000, 350,000, 380,000, 400,000, 420,000, 450,000, 480,000, 500,000, 550,000, 600,000, 650,000, 700,000, 750,000, 800,000, 850,000, 900,000 or 1,000,000, etc.), the non-water-soluble material is polybutylene terephthalate-adipate with a molecular weight of 20,000 to 100,000 (for example, 20,000, 30,000, 40,000, 50,000, 60,000, 70,000, 80,000, 90,000 or 100,000, etc.), and the mass ratio of the water-soluble phase to the non-water-soluble phase is 55:45.

[0069] In the present invention, the structure and sustained-release behavior of the solid washing material can be controlled by adjusting the type, molecular weight and ratio of the water-soluble polymer material and the water-insoluble material. By controlling these factors within the above range of the present invention, it is helpful to form a co-continuous structure with the water-soluble phase and the water-insoluble phase, and ensure that the obtained solid washing material has a suitable sustained-release rate.

[0070] In some embodiments of the present invention, the tensile strength of the solid washing material is 5MPa to 20MPa, for example, 5MPa, 6MPa, 8MPa, 10MPa, 12MPa, 13MPa, 15MPa, 16MPa, 18MPa or 20MPa, etc.; the elongation at break is 5% to 600%, for example, 5%, 10%, 20%, 30%, 50%, 60%, 80%, 100%, 150%, 200%, 250%, 300%, 350%, 400%, 450%, 500%, 550% or 600%, etc. Compared with the existing washing powder, washing liquid or washing condensed beads, the solid washing material provided by the present invention has higher tensile strength, can withstand greater tension during use, has higher durability, service life and better user experience. In some embodiments of the present invention, the short side size of the phase region of the water-soluble phase is 100nm to 10μm, for example, it can be 100nm, 200nm, 300nm, 400nm, 500nm, 600nm, 700nm, 800nm, 900nm, 1μm, 1.2μm, 1.5μm, 1.8μm, 2μm, 2.2μm, 2.5μm, 2.8μm, 3μm, 4μm, 5μm, 6μm, 7μm, 8μm, 9μm or 10μm, etc.; the short side size of the phase region of the non-aqueous phase is 100nm~10μm, for example, it can be 100nm, 200nm, 300nm, 400nm, 500nm, 600nm, 700nm, 800nm, 900nm, 1μm, 1.2μm, 1.5μm, 1.8μm, 2μm, 2.2μm, 2.5μm, 2.8μm, 3μm, 4μm, 5μm, 6μm, 7μm, 8μm, 9μm or 10μm, etc.

[0071] It should be noted that the short side size of the phase region in the present invention refers to the minimum size of the phase region in different cross-sectional shapes in the direction passing through the center of the cross-sectional shape. For example, when the phase region at a certain location is cylindrical, the short side size of the phase region at that location is the diameter of the cylinder; when the phase region at a certain location is a thin sheet, the short side size of the phase region at that location is the thickness of the thin sheet.

[0072] In some embodiments of the present invention, the dissolution rate of the solid washing material in water is 0.0001 g / L to 0.003 g / L; for example, it can be 0.0001 g / L, 0.0002 g / L, 0.0003 g / L, 0.0004 g / L, 0.0005 g / L, 0.0006 g / L, 0.0007 g / L, 0.0008 g / L, 0.0009 g / L, 0.001 g / L, 0.0012 g / L, 0.0015 g / L, 0.0018 g / L, 0.002 g / L, 0.0022 g / L, 0.0025 g / L, 0.0028 g / L or 0.003 g / L, etc.

[0073] The dissolution rate test method is as follows: the solid aromatherapy material is prepared into a sample of 10 mm×10 mm×4 mm, with a mass of m1, and is rinsed with tap water at a flow rate of 2.5 L / min at room temperature. After the sample mass is constant, it is taken out and dried, and weighed, with a mass of m2. The volume of the water used for rinsing is v, and the dissolution rate = (m1-m2) / v;

[0074] The criterion for determining constant sample mass is: the mass difference before and after rinsing for 1 hour is less than 0.01 g;

[0075] All samples must be dried in a 60°C forced air drying oven before weighing, and the drying standard is that the mass difference before and after drying for 1 hour is less than 0.01g.

[0076] In the present invention, there is no particular limitation on the preparation method of the solid washing material. As an exemplary preparation method, it may include the following steps:

[0077] The water-soluble polymer material and the washing material are first blended to obtain a water-soluble phase material;

[0078] The water-soluble phase material and the water-insoluble phase material are secondly blended to obtain the solid washing material.

[0079] Before the second blending, the water-soluble phase material may be granulated to obtain a water-soluble masterbatch; the particle size of the water-soluble masterbatch may be 2-5 mm.

[0080] The first blending and the second blending can be performed using a twin-screw extruder or an internal mixer.

[0081] When a twin-screw extruder is used, the processing temperature of the second blending can be 50-130°C (for example, it can be 50°C, 55°C, 60°C, 65°C, 70°C, 75°C, 80°C, 85°C, 90°C, 95°C, 100°C, 110°C, 120°C or 130°C, etc.), the screw speed of the second blending can be 50-150rpm (for example, it can be 50rpm, 60rpm, 70rpm, 80rpm, 90rpm, 100rpm, 110rpm, 120rpm, 130rpm, 140rpm or 150rpm, etc.), and the residence time can be 2-3min (for example, it can be 2min, 2.2min, 2.3min, 2.5min, 2.6min, 2.8min or 3min, etc.).

[0082] When an internal mixer is used, the mixing processing temperature of the second blending can be 60-130°C (for example, 60°C, 65°C, 70°C, 75°C, 80°C, 85°C, 90°C, 95°C, 100°C, 110°C, 120°C or 130°C, etc.), the rotation speed can be 50-100rpm (for example, 50rpm, 60rpm, 70rpm, 80rpm, 90rpm or 100rpm, etc.), and the mixing time can be 3-5min (for example, 3min, 3.2min, 3.3min, 3.5min, 3.6min, 3.8min, 4min, 4.2min, 4.3min, 4.5min, 4.6min, 4.8min or 5min, etc.).

[0083] In the present invention, the blending method has a certain influence on the size and structure of the water-soluble phase and the non-water-soluble phase. By controlling the blending process conditions within the above range, it is helpful to form a co-continuous structure with a suitable phase domain size for the water-soluble phase and the non-water-soluble phase.

[0084] In a second aspect, an embodiment of the present invention provides a solid washing material, wherein the solid washing material comprises a blended water-soluble phase and a water-insoluble phase;

[0085] The aqueous phase contains a washing material;

[0086] The tensile strength of the solid washing material is 5MPa-20MPa, and the elongation at break is 5%-600%.

[0087] In some embodiments of the present invention, the short side size of the phase region of the water-soluble phase is 100 nm to 10 μm, and the short side size of the phase region of the water-insoluble phase is 100 nm to 10 μm.

[0088] In some embodiments of the present invention, the dissolution rate of the solid washing material in water is 0.0001 g / L to 0.003 g / L.

[0089] The technical solution of the present invention is further described below through specific implementation methods.

[0090] Example 1

[0091] This embodiment provides a solid washing material, and its structural schematic diagram is as follows Figure 1 As shown, the water-soluble phase ( Figure 1 The middle white area) and the non-aqueous phase ( Figure 1 middle black area);

[0092] Wherein, the water-soluble phase and the water-insoluble phase are both continuous phases;

[0093] The water-soluble phase includes a water-soluble polymer material and a washing material, and the non-water-soluble phase includes a water-insoluble polymer material;

[0094] The mass ratio of the water-soluble phase to the non-water-soluble phase is 55:45;

[0095] The mass ratio of the water-soluble polymer material to the washing material is 50:50;

[0096] The water-soluble polymer material is polyethylene oxide (from German company Rhodamine, with a number average molecular weight of 100,000), the washing material is composed of fatty alcohol polyoxyethylene ether (AEO), fatty acid methyl ester ethoxylate (FMEE) and sodium percarbonate in a mass ratio of 2:2:1, and the non-water-soluble polymer material is polycaprolactone (PCL6800 from Solvay, USA, with a number average molecular weight of 80,000).

[0097] The preparation method of the solid washing material in this embodiment is as follows:

[0098] (1) drying the polyethylene oxide at a drying temperature of 50° C. for a drying time of 6 h;

[0099] (2) using a twin-screw extruder, the polyethylene oxide and the washing material are first blended, the operating temperature of the twin-screw extruder is: the temperature of zone 1 is 60° C., the temperature of zone 2 is 80° C., the temperature of zone 3 is 80° C., the temperature of zone 4 is 80° C., the temperature of zone 5 is 80° C., the temperature of zone 6 is 80° C., and the die temperature is 75° C.; the screw speed is 50 rpm, and the material residence time is 3 min;

[0100] The mixture obtained by the first blending is air-cooled to below 50° C., and then granulated to obtain a water-soluble masterbatch with a particle size of 2-5 mm;

[0101] (3) using a twin-screw extruder, the water-soluble masterbatch obtained in step (2) is subjected to a second blending with polycaprolactone, the operating temperature of the twin-screw extruder is: the temperature of zone 1 is 60° C., the temperature of zone 2 is 80° C., the temperature of zone 3 is 80° C., the temperature of zone 4 is 80° C., the temperature of zone 5 is 85° C., the temperature of zone 6 is 85° C., and the die temperature is 75° C.; the screw speed is 50 rpm, and the material residence time is 3 min;

[0102] The mixture obtained by the second blending was air-cooled to below 50° C. and then granulated to obtain a solid washing material.

[0103] Example 2

[0104] This embodiment provides a solid washing material, which is different from the embodiment 1 in that:

[0105] The washing material consists of AEO, FMEE and lipase in a mass ratio of 2:2:1;

[0106] The water-insoluble polymer material is ethylene-vinyl acetate copolymer (UE630 produced by Taiwan Polymer Chemicals Co., Ltd., China, with a melt flow index of 1.5 g / 10 min number average).

[0107] The preparation method of the solid washing material in this embodiment is as follows:

[0108] (1) drying the polyethylene oxide at a drying temperature of 50° C. for a drying time of 6 h;

[0109] (2) using a twin-screw extruder, the polyethylene oxide and the washing material are first blended, the operating temperature of the twin-screw extruder is: the temperature of the first zone is 50° C., the temperature of the second zone is 60° C., the temperature of the third zone is 60° C., the temperature of the fourth zone is 60° C., the temperature of the fifth zone is 65° C., the temperature of the sixth zone is 65° C., and the die temperature is 60° C.; the screw speed is 50 rpm, and the material residence time is 3 min;

[0110] The mixture obtained by the first blending is air-cooled to below 50° C., and then granulated to obtain a water-soluble masterbatch with a particle size of 2-5 mm;

[0111] (3) using a twin-screw extruder, the water-soluble masterbatch obtained in step (2) is subjected to a second blending with ethylene-vinyl acetate copolymer, the operating temperature of the twin-screw extruder is: the temperature of zone 1 is 50° C., the temperature of zone 2 is 60° C., the temperature of zone 3 is 60° C., the temperature of zone 4 is 60° C., the temperature of zone 5 is 65° C., the temperature of zone 6 is 65° C., and the die temperature is 60° C.; the screw speed is 50 rpm, and the material residence time is 3 min;

[0112] The mixture obtained by the second blending was air-cooled to below 50° C. and then granulated to obtain a solid washing material.

[0113] Example 3

[0114] This embodiment provides a solid washing material, which is different from the embodiment 1 in that:

[0115] The mass ratio of the water-soluble phase to the non-water-soluble phase is 40:60;

[0116] The mass ratio of water-soluble polymer material to washing material is 80:20;

[0117] The water-soluble polymer material is polyvinyl alcohol (PVA-1799 from Anhui Wanwei Company, with a number average molecular weight of 1700), and the water-insoluble polymer material is polycaprolactone (PCL6800 from Solvay Company, USA, with a number average molecular weight of 80,000).

[0118] Example 4

[0119] This embodiment provides a solid washing material, which is different from the embodiment 1 in that:

[0120] The mass ratio of the water-soluble phase to the non-water-soluble phase is 60:40;

[0121] The mass ratio of water-soluble polymer material to washing material is 65:35;

[0122] The water-soluble polymer material is polyethylene glycol (polyethylene glycol-200 from Wuxi Yatai Chemical Industry Co., Ltd., with a number average molecular weight of 200), and the water-insoluble polymer material is polycaprolactone (PCL6800 from Solvay, USA, with a number average molecular weight of 80,000).

[0123] Example 5

[0124] This embodiment provides a solid washing material, and its structural schematic diagram is as follows Figure 1 As shown, the water-soluble phase ( Figure 1 The middle white area) and the non-aqueous phase ( Figure 1 middle black area);

[0125] Wherein, the water-soluble phase and the water-insoluble phase are both continuous phases;

[0126] The water-soluble phase includes a water-soluble polymer material and a washing material, and the non-water-soluble phase includes a water-insoluble polymer material;

[0127] The mass ratio of the water-soluble phase to the non-water-soluble phase is 55:45;

[0128] The mass ratio of the water-soluble polymer material to the washing material is 50:50;

[0129] The water-soluble polymer material is polyethylene oxide (Germany's Rhodamine Chemical Company, with a number average molecular weight of 100,000), the washing material is composed of AEO and FMEE in a mass ratio of 1:1, and the non-water-soluble polymer material is ethylene-octene block copolymer (POE6102 from ExxonMobil, with a melt flow index of 1.5 g / 10 min).

[0130] The preparation method of the solid washing material in this embodiment is as follows:

[0131] (1) drying the polyethylene oxide at a drying temperature of 50° C. for a drying time of 6 h;

[0132] (2) using a twin-screw extruder, the polyethylene oxide and the washing material are first blended, the operating temperature of the twin-screw extruder is: the temperature of the first zone is 80° C., the temperature of the second zone is 100° C., the temperature of the third zone is 100° C., the temperature of the fourth zone is 100° C., the temperature of the fifth zone is 100° C., the temperature of the sixth zone is 100° C., and the die temperature is 90° C.; the screw speed is 50 rpm, and the material residence time is 3 min;

[0133] The mixture obtained by the first blending is air-cooled to below 50° C., and then granulated to obtain a water-soluble masterbatch with a particle size of 2-5 mm;

[0134] (3) using a twin-screw extruder, the water-soluble masterbatch obtained in step (2) and the ethylene-octene block copolymer are subjected to a second blending, the operating temperature of the twin-screw extruder is: the temperature of zone 1 is 80° C., the temperature of zone 2 is 110° C., the temperature of zone 3 is 110° C., the temperature of zone 4 is 110° C., the temperature of zone 5 is 110° C., the temperature of zone 6 is 110° C., and the die temperature is 100° C.; the screw speed is 50 rpm, and the material residence time is 3 min;

[0135] The mixture obtained by the second blending was air-cooled to below 50° C. and then granulated to obtain a solid washing material.

[0136] Example 6

[0137] This embodiment provides a solid washing material, which is different from Embodiment 5 in that:

[0138] The non-water-soluble polymer material is polybutylene terephthalate-adipate (TH801T from Xinjiang Lanshan Tunhe Company, with a number average molecular weight of 40,000).

[0139] Comparative Example 1

[0140] This comparative example provides a solid washing material, which is different from Example 5 only in that the mass ratio of the water-soluble phase to the water-insoluble phase is 20:80.

[0141] Comparative Example 2

[0142] This comparative example provides a solid washing material, which is different from Example 5 only in that the mass ratio of the water-soluble phase to the water-insoluble phase is 80:20.

[0143] Performance Testing:

[0144] The performance of the solid washing materials provided in the above embodiments and comparative examples were tested respectively, and the testing methods were as follows:

[0145] Tensile strength and elongation at break: The tensile properties were tested using a universal tensile testing machine. The test standard was GB / T1040-2006 and the tensile rate was 50 mm / min.

[0146] The test method of dissolution rate is as follows: the solid aromatherapy material is prepared into a sample of 10mm×10mm×4mm, with a mass of m1, and is rinsed with tap water at a flow rate of 2.5L / min at room temperature. After the mass of the sample is constant, it is taken out and dried, and weighed, with a mass of m2. The volume of the water used for rinsing is v, and the dissolution rate = (m1-m2) / v;

[0147] The criterion for determining constant sample mass is: the mass difference before and after rinsing for 1 hour is less than 0.01 g;

[0148] All samples must be dried in a 60°C forced air drying oven before weighing, and the drying standard is that the mass difference before and after drying for 1 hour is less than 0.01g.

[0149] Water-soluble phase continuity: prepare the solid aromatherapy material into a sample of 10mm×10mm×4mm, and weigh the mass m1; soak the sample in 30℃ water until the mass does not change, take out and dry, and weigh the mass m2; Water-soluble phase continuity = the mass of the water-soluble phase dissolved in the sample / theoretical mass of the water-soluble phase, the mass of the dissolved water-soluble phase = m1-m2.

[0150] Morphology characterization: Scanning electron microscopy (SEM) was used to observe the morphology of the solid washing material after immersion.

[0151] The results of the above tests are shown in Table 1 below:

[0152] Table 1

[0153]

[0154] It can be seen from the test results in Table 1 that the solid washing material provided by the present invention has a tensile strength of 5MPa-20MPa, an elongation at break of 5%-600%, a continuity of the water-soluble phase of 100%, and a dissolution rate in water of 0.0001g / L-0.003g / L.

[0155] The surface morphology of the solid washing material provided in Example 1 after immersion (non-aqueous phase) is as follows: Figure 2 As shown. Figure 2 It can be seen that the non-aqueous phase is continuous, and the short side dimensions of the phase regions of the non-aqueous phase and the aqueous phase (the void portion in the figure) are in the range of 100 nm to 10 μm.

[0156] Compared with Example 5, since the proportion of the water-soluble phase in Comparative Example 1 is relatively low, the continuity of the water-soluble phase of the obtained solid washing material is low, and a co-continuous structure cannot be formed, and the washing ingredients are difficult to be completely released and the release rate is slow; since the proportion of the non-water-soluble phase in Comparative Example 2 is relatively low, the dissolution rate of the obtained solid washing material is too large, and the material is easy to disintegrate.

[0157] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A solid washing material, characterized in that: The solid washing material comprises a blended water-soluble phase and a water-insoluble phase; The water-soluble phase includes a water-soluble polymer material and a washing material; The water-insoluble phase includes water-insoluble materials.

2. The solid washing material according to claim 1, characterized in that The water-soluble phase and the non-aqueous phase are both continuous phases.

3. The solid washing material according to claim 1 or 2, characterized in that: The mass ratio of the water-soluble phase to the non-water-soluble phase is (30-70):(30-70), preferably (40-60):(40-60).

4. The solid washing material according to any one of claims 1 to 3, characterized in that: The mass ratio of the water-soluble polymer material to the washing material is (50-80):(20-50); Preferably, the washing material is selected from one or more of surfactants, peroxides, enzymes, chelates and polymers.

5. The solid washing material according to any one of claims 1 to 4, characterized in that: The water-soluble polymer material is selected from one or more of polyvinyl alcohol, polyethylene glycol, polyethylene oxide, polyacrylamide and polyvinyl pyrrolidone; Preferably, the molecular weight of the water-soluble polymer material is 1 to 1 million; Preferably, the molecular weight of the polyvinyl alcohol is 800 to 5000; Preferably, the molecular weight of the polyethylene glycol is 100 to 4000; Preferably, the molecular weight of the polyethylene oxide is 50,000 to 1,000,000.

6. The solid washing material according to any one of claims 1 to 5, characterized in that: The water-insoluble material is a water-insoluble polymer material; Preferably, the water-insoluble polymer material is selected from one or more of polyolefins, polyesters and ethylene-vinyl acetate copolymers; Preferably, the molecular weight of the water-insoluble polymer material is 20,000 to 300,000.

7. The solid washing material according to any one of claims 1 to 6, characterized in that: The washing material comprises peroxide and / or enzyme, the water-soluble polymer material is polyethylene oxide with a molecular weight of 100,000 to 1,000,000, the water-insoluble material is polycaprolactone with a molecular weight of 30,000 to 100,000, and the mass ratio of the water-soluble phase to the water-insoluble phase is 55:45; Alternatively, the washing material comprises peroxide and / or enzyme, the water-soluble polymer material is polyethylene oxide with a molecular weight of 100,000 to 1,000,000, the water-insoluble material is ethylene-vinyl acetate copolymer with a molecular weight of 30,000 to 100,000, and the mass ratio of the water-soluble phase to the water-insoluble phase is 55:45; Alternatively, the washing material does not contain peroxide and enzyme, the water-soluble polymer material is polyethylene oxide with a molecular weight of 100,000 to 1,000,000, the water-insoluble material is an ethylene-octene block copolymer with a molecular weight of 50,000 to 200,000, and the mass ratio of the water-soluble phase to the water-insoluble phase is 55:45; Alternatively, the washing material does not contain peroxide and enzyme, the water-soluble polymer material is polyethylene oxide with a molecular weight of 100,000 to 1,000,000, the water-insoluble material is polybutylene terephthalate-adipate with a molecular weight of 20,000 to 100,000, and the mass ratio of the water-soluble phase to the water-insoluble phase is 55:

45.

8. A solid washing material, characterized in that: The solid washing material comprises a blended water-soluble phase and a water-insoluble phase; The aqueous phase contains a washing material; The tensile strength of the solid washing material is 5MPa-20MPa, and the elongation at break is 5%-600%.

9. The solid washing material according to claim 8, characterized in that The short side size of the phase region of the water-soluble phase is 100 nm to 10 μm, and the short side size of the phase region of the water-insoluble phase is 100 nm to 10 μm.

10. The solid washing material according to claim 8 or 9, characterized in that The dissolution rate of the solid washing material in water is 0.0001 g / L to 0.003 g / L; The test method of the dissolution rate is as follows: the solid aromatherapy material is prepared into a sample of 10mm×10mm×4mm with a mass of m1, and is rinsed with tap water at a flow rate of 2.5L / min. After the mass of the sample is constant, it is taken out and dried, and weighed, with a mass of m2. The volume of the water used for rinsing is v, and the dissolution rate = (m1-m2) / v.

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