WO2007132796A1 - Granurated slipperiness improver for washing - Google Patents

Abstract

A granulated slipperiness improver for washing which contains potassium metaphosphate exhibiting a viscosity of 200mPa s or above in the form of an aqueous solution as determined by adding 2g of potassium metaphosphate to 50mL of water, stirring the obtained mixture for one minute, adding a solution of 4g of sodium tripolyphosphate (manufactured by Shimonoseki Mitsui Kagaku Kabushiki Kaisha) in 50mL of water to the resulting mixture, stirring the thus obtained mixture for three hours, and then determining the viscosity of the thus obtained solution at 25°C with a Brookfield type viscometer. The slipperiness improver can be suitably used in washing clothes by hand, particularly in washing them by hand through long-time soaking.

Description

 Slippery improver granule for washing

 Technical field

 [0001] The present invention relates to a granulated product of a slipperiness improving agent for washing. For details, it is easy to wash when washing by hand, improving the smoothness between the objects to be washed, and improving the smoothness between the objects to be washed. As a washing additive based on a completely new concept to reduce scratches on the objects to be cleaned due to friction between objects to be cleaned and scratches on the hands caused by rubbing the hands with the objects to be cleaned. Related. Moreover, it is related with the detergent composition containing the said smooth property improvement agent granule for washing | cleaning. Background art

 [0002] There are two types of washing methods: hand-washing laundry and washing machine washing. In recent years, there has been a tendency for washing machines to increase due to the widespread use of washing machines. However, there are still many needs for hand-washing from the viewpoint of removing dirt and economy.

 [0003] Therefore, conventionally, detergents having desirable physical properties during hand-washing and washing have been developed. For example, as mentioned in Patent Document 1, the irritation to the skin during hand washing and washing is improved by blending a specific surfactant, a cationic surfactant, and a nonionic surfactant in a specific ratio. A method is disclosed. As for foam control, in general, high foaming surfactants such as LAS and AS are used for foaming, nonionic surfactants such as polyoxyethylene alkyl ether are used for foam control, and foaming during rinsing. It is known to use sarcophagus to improve cutting performance. Specifically, by containing a specific surfactant, a specific nonionic surfactant, and a fatty acid sarcophagus listed in Patent Document 2, solubility, foaming and rinsing properties are improved. Excellent detergent compositions have been disclosed.

 Patent Document 1: Japanese Patent Publication No. 10-504056

 Patent Document 2: Japanese Patent Publication No. 8-13987

 Summary of invention

[0004] The present invention provides:

[1] Contains potassium metaphosphate having an aqueous solution viscosity of 200 mPa's or more measured under the following conditions Slippery improver granule for washing

 [Add 2 g of potassium metaphosphate to 50 mL of water and stir for 1 minute. Then, add a solution of 4 g of sodium tripolyphosphate (Shimonoseki Mitsui Chemicals Co., Ltd.) in 50 mL of water and stir for 3 hours. , Measure the viscosity at 25 ° C with a B-type viscometer),

 [2] A detergent composition containing the laundry slipperiness improver granule according to [1], and [3] The detergent composition according to [2] has a potassium metaphosphate concentration in water of 15 mgZL or more. How to wash and wash with water

 About.

 Detailed Description of the Invention

 [0005] Focusing on the ease of hand washing and washing (slidability when rubbing the object to be washed), by adding a specific potassium metaphosphate to the detergent composition, the friction force between the objects to be washed is reduced. In addition, there is a technology that improves hand-washing washability while maintaining detergency by improving smoothness.

 [0006] When hand-washing while washing, the object to be washed is immersed in a solution obtained by dissolving the detergent composition in water for several minutes for several hours, and then hand-washing is started. There are many cases. In that case, the effect of improving the smoothness expressed by the dissolution of the specific potassium metaphosphate decreases with time. In addition, by increasing the particle size of the potassium metaphosphate powder, it is possible to extend the duration of the smoothness. Dissolved potassium metaphosphate and adhesion to clothing become a problem. .

 [0007] Therefore, the present invention maintains good slippage between the objects to be cleaned both in the case of not being soaked and in the case of being soaked without causing dissolution of potassium metaphosphate and adhesion to clothing. The slipperiness improver granule for washing, which is easy to wash and wash by increasing the speed of rubbing the laundry (the number of rubbing per hour), and the like The present invention relates to a detergent composition containing a product and a washing method using the laundry slipperiness improver granulated product.

[0008] In the case of performing hand washing! ヽ washing, the present inventors rub the objects to be cleaned in consideration of the fact that there are many cases where hand washing and washing are started after immersion washing for several minutes to several hours. As a result of intensive research focusing on the smoothness of the time, a specific potassium metaphosphate granulated alone, or a specific potassium metaphosphate and a binder substance and Z or its By using a granulated product with other ingredients, it can be washed with light force and rubbed in handwashing after immersion washing for several minutes and several hours, as well as during handwashing immediately after addition. The inventors have found that the feeling of hand washing is enhanced by increasing the speed (the number of rubbing per hour), and the present invention has been completed.

 [0009] By using the granulated product of the smoothness improver for washing according to the present invention, when it is not soaked so long as it remains undissolved in potassium metaphosphate or adheres to clothing, it is also when soaked for a long time. However, the smoothness between the objects to be cleaned is maintained, and it is possible to improve the feeling of hand-washing by washing lightly and increasing the speed of rubbing the laundry (the number of rubbing per hour). Played. Also, in washing machine washing, fabric damage can be avoided by improving the smoothness between fibers against the fiber damage that causes mold loss caused by mechanical force such as stirring.

 [0010] Granulated product for smoothness improving agent for laundry>

 The granulated product of the laundry slipperiness improver of the present invention is characterized by containing potassium metaphosphate having a specific viscosity and being a granulated product. The granulated product of the present invention for improving the slipperiness of laundry according to the present invention has a strong characteristic when it is not soaked without causing dissolution of potassium metaphosphate or adhesion to clothing, or when soaked for a long time. However, good smoothness between the objects to be cleaned can be maintained, and washing can be performed with a light force, and the speed of rubbing the laundry can be easily increased.

 [0011] In the present invention, the granulated product refers to a product granulated with potassium metaphosphate alone or a product obtained by granulating potassium metaphosphate with a binder substance and Z or other components. And capsules.

 [0012] In the present invention, by granulating in this way, the handling property when added to the detergent composition in the manufacturing process is improved, and the generation of pollen when added separately from the detergent composition during washing is suppressed. There is also an advantage that it can be done.

[0013] The laundry slipperiness improver granulated product of the present invention (hereinafter abbreviated as "slipability improver") can be mixed with a detergent and used as a slipperiness improver-containing detergent, or can be directly applied during washing. It can be added separately from the product, but it is preferably contained in the detergent composition from the viewpoint of convenience during use and solubility. In addition, the slipperiness improving agent is used for the washing used. The composition “form” of the agent composition is not limited by the production method and the like, and the effect can be expressed in all detergent compositions containing a solubilizer and the like described later.

 [0014] In addition, the granulated product of the present invention for improving slipperiness for washing improves the smoothness between objects to be washed during hand washing and washing, makes it easier to wash hands, further enhances the feel in hand washing, It has the effect of being able to provide hand care and clothing care. Therefore, the laundry slipperiness improver granulated product of the present invention is also used for hand washing and washing.

 [0015] Each component used in the present invention will be described below. Hereinafter, the laundry slipperiness improver granulated product of the present invention is also simply referred to as a granulated product. The washing liquid refers to a liquid for washing such as a liquid in which the granulated product and detergent composition for washing are dissolved and suspended.

 [0016] 1. Potassium metaphosphate

 The potassium metaphosphate used in the present invention has an aqueous solution viscosity of 200 mPa's or more, preferably 250 mPa's or more, more preferably 300 mPa's or more when measured using a viscosity measurement method described later. . Further, from the viewpoint of easy availability, 800 mPa's or less is preferable and 600 mPa's or less is more preferable. Potassium metaphosphate having such a specific viscosity has the advantage of having useful performance as a hand washing detergent with a remarkably high slipperiness. Therefore, a laundry slipperiness improver containing potassium metaphosphate, which is strong, is used. There is also an advantage that the amount of the slipperiness improving agent can be reduced by adding the granules to the detergent composition.

 [0017] Here, the viscosity of the aqueous potassium metaphosphate solution is obtained by adding 2 g of potassium metaphosphate to 50 mL of water, stirring for 1 minute, and adding 4 g of sodium tripolyphosphate (manufactured by Shimonoseki Mitsui Chemicals Co., Ltd.). It is obtained by adding a solution dissolved in 50 mL of water, stirring for 3 hours, and measuring the viscosity at 25 ° C with a B-type viscometer.

 [0018] The potassium metaphosphate used in the present invention is generally produced by the following production method.

 nKH ΡΟ → (ΚΡΟ) η + ηΗ Ο

 2 4 3 2

 That is, metal dihydride is obtained by heating intermolecular dehydration by heating potassium dihydrogen phosphate (、 ΡΟ).

 twenty four

Potassium acid is produced, but products with various degrees of polymerization can be obtained depending on factors such as heating temperature and time. The degree of polymerization increases as the dehydration reaction is performed at higher temperatures. This degree of polymerization and smoothness In terms of molecular weight, potassium metaphosphate has a molecular weight of 10,000 or more, more preferably 100,000 or more, more preferably 200,000 or more, and more preferably 500,000 or more. preferable. Also, from the viewpoint of easy availability, 50 million or less is preferable, and 20 million or less is more preferable. In addition, molecular weight here is a number average molecular weight.

[0019] Potassium metaphosphate is a force represented by the general formula (KPO) n The structure is shown in the following formula:

 Three

 It is like that.

 [0020] [Chemical 1]

[0021] PO tetrahedron force Oxygen is shared (polymerized) to form a polyphosphate ion network

 Four

 In order to neutralize the charge balance of polyphosphate ion, it has a structure in which potassium ion is coordinated. As shown in the above structure, an element that forms a polyphosphate anion network, such as phosphorus, is generally referred to as a network forming element, and the network forming element that is isomorphously substituted with phosphorus binds and bonds oxygen. Form a network of key-ons. An element such as potassium that plays a role in adjusting the charge of the polyphosphate ion network is called a network modifying element.

 [0022] The potassium metaphosphate used in the present invention may contain a specific amount of a network forming element that is isomorphously substituted for phosphorus or a network modifying element other than potassium. A network-forming element that substitutes for the same type of phosphorus and a network-modifying element other than potassium may be contained in the raw material of potassium metaphosphate or in the production process.

[0023] Potassium metaphosphate is known to be used as a builder for detergents. In this application, there is no restriction on the network-forming elements that are isomorphously substituted for phosphorus as described above or network-modifying elements other than potassium. No matter what proportion it is contained, the performance as a builder is not significantly impaired. On the other hand, it is used for the application of the present invention. These potassium metaphosphates have special circumstances that can exhibit performance suitable for the present invention only when their content is limited to a specific range.

 [0024] As a raw material for potassium metaphosphate, a further phosphorous source of an industrially available phosphate compound includes a so-called phosphate ore that is naturally produced and contains a large amount of calcium phosphate and the like. These phosphorus ores mined from nature are industrially derived into phosphoric acid compounds such as phosphoric acid (salt) via yellow phosphorus, phosphorus oxide and the like. If the purification process is not included, or if the purification is not sufficiently performed, phosphate compounds whose origin is natural phosphorus ore will be converted to phosphorus such as arsenic that is carried over as phosphorus ore. It contains a large amount of network-forming elements that are replaced by the same type. Inexpensive industrial grade phosphoric acid compounds such as detergents are generally not highly refined, and these phosphoric acid compounds contain a large amount of network-forming elements that are isomorphously substituted for phosphorus. It is out. Although the content of network-forming elements that are isomorphously substituted for the phosphorus contained varies depending on the origin of the phosphate ore and the processing process of the phosphorus ore power, etc., in general, commercial industrial grade phosphate compounds Contains network-forming elements that are isomorphously substituted for phosphorus of several tens to 100 ppm by weight.

 [0025] On the other hand, examples of industrially available potassium sources as a raw material for potassium metaphosphate include potassium hydroxide and the like obtained by electrolysis of potassium chloride. Salt potassium is obtained from an impure mixture such as carnalite, kainite, silvin, and Halsalz by industrial crystallization. Such industrial grade salt potassium is removed by crystallization. Not possible! / Contains a large amount of other components, such as sodium chloride and magnesium salt. Since these components other than salt and potassium are carried over in potassium hydroxide obtained after electrolysis, industrial grade potassium hydroxide contains a large amount of network modifying elements other than potassium. And then.

[0026] In addition, those skilled in the art who perform a series of linker steps from phosphate ore to phosphate compounds, or a partial process thereof, can use phosphoric acid as a raw material for potassium metaphosphate almost without exception. It also produces products other than potassium compounds. These phosphorus processors aim at the effective use of processing equipment, for example, processing of sodium phosphate compounds derived from phosphate and sodium sources, and potassium phosphate compounds that can be used as raw materials for potassium metaphosphate. Production of, Or, the production of potassium metaphosphate itself is generally carried out in processing facilities such as a common reaction kettle, dryer, and firing furnace. If the equipment's process control, such as the order of varieties when changing production varieties and the cleaning of processing equipment, is not sufficiently conducted, all the various raw materials suitable for the potassium metaphosphate of the present invention are prepared. However, during the processing step, the result is an increase in components that are undesirable for the application of the present invention.

 [0027] It is preferable that various raw materials for preparing potassium metaphosphate of the present invention also examine components other than phosphorus and potassium, and if necessary, take measures such as purification. For example, as an example in which the content of the network-forming element that is isomorphously substituted with phosphorus is a preferred range, a potassium phosphate compound such as potassium dihydrogen phosphate supplied as a highly purified food additive is used in the present invention. It is preferred to use it to prepare potassium metaphosphate.

 [0028] If the content of a network-forming element other than potassium and a network-modifying element other than potassium is the same type, it is incorporated into potassium metaphosphate and exhibits the same properties as phosphorus and potassium. The performance required for the potassium metaphosphate of the present invention, that is, having a specific viscosity, sufficiently exhibits the performance useful as a detergent for hand-washing with extremely high smoothness. Examples of network forming elements that are isomorphously substituted for phosphorus include forces B, As, Si, Ge, Sb, Ti, Sn, Al, and Zr. The content of these network forming elements (NWF) that are isomorphously substituted with phosphorus is preferably 0 to 0.7 mmol force S, more preferably 0.0001 to 0.4 mmol force S, and more preferably 0.0002 to 0.4 kg force per 1 kg of potassium metaphosphate. 0. lmmol force S more preferred.

 [0029] Further, the network modifying element other than potassium is not particularly limited, but Fe, Mg, Ni, Zn, Co, Ca, Sr, Ba, Li, Na, Rb, Cs, etc. are exemplified. . The content of network modifying elements (NWM) other than these strength rhodium is 0 to: LOOmmol force S, preferably 0. O001 to 75 mmol force S, more preferably 0.0002 to 25 mmol force S, with respect to 1 kg of potassium metaphosphate. preferable.

 [0030] The content of the network-forming element or the network-modifying element is measured using an atomic absorption analyzer or an ICP emission analyzer by the method described later.

[0031] In the present invention, the molar ratio of potassium and phosphorus in the potassium metaphosphate compound (hereinafter referred to as The KZP molar ratio is not particularly limited, but is preferably less than 1, more preferably 0.999 to 0.94, and even more preferably 0.99 to 0.98. If the K / P monore ratio is less than the polyphosphate anion in the potassium metaphosphate, the following formula:

 [Chemical 2] OP OHI

 ONPOI

[0033] The cross-linking structure shown in FIG. 1 can be taken, the one-dimensional chain polymer is changed to a two-dimensional layered polymer, the degree of polymerization is higher, and higher slip properties are easily exhibited. is there. Note that the soot molar ratio can be measured by the measurement method described in the examples below.

[0034] Next, a method for producing potassium metaphosphate will be described. As described above, potassium metaphosphate is obtained by dehydrating and condensing potassium dihydrogen phosphate at a high temperature. However, in the present invention, potassium dihydrogen phosphate and phosphoric acid are mixed to adjust the molar ratio. And can be obtained by dehydration condensation at high temperature.

[0035] It is preferable that the potassium dihydrogen phosphate and phosphoric acid are mixed uniformly. Potassium metaphosphate melts at 800 ° C or higher to form a melt. Therefore, when the synthesis temperature of potassium metaphosphate is 800 ° C. or higher, a molten state is formed, and the raw materials are uniformly mixed by the diffusion of the liquid. However, in the case of synthesizing at 800 ° C. or less, it is preferable from the viewpoint of smoothness that the raw materials should be preliminarily mixed and mixed uniformly before firing. As a specific example of mixing raw materials, since potassium dihydrogen phosphate and phosphoric acid are water-soluble, a method in which they are mixed as a uniform aqueous solution and spray-dried is suitable. As an example of such a mixture, a suitable ratio of a phosphorus source such as phosphoric acid and a potassium source such as potassium hydroxide or potassium hydroxide. The method of mixing as an aqueous solution containing is substantially the same as the above method, and the effect of the present invention can be obtained. Alternatively, powdered potassium dihydrogen phosphate may be charged into a mixer, rotated at high speed, and mixed by spraying or dropping liquid phosphoric acid there. Solid mixers are preferred as mixers, for example, horizontal cylindrical mixers, V-type mixers, double cone-type mixers, ribbon-type mixers, conical screw mixers, high-speed fluidized mixers, rotating Examples include a disc type mixer, an airflow stirring type mixer, a gravity drop type mixing machine, and a stirring type mixing machine. Among these, a high-speed fluid mixer that can perform more uniform mixing by high-speed mixing is preferable. Further, by mixing potassium dihydrogen phosphate in water, mixing with phosphoric acid, and then spray drying, a mixed powder in which potassium dihydrogen phosphate and phosphoric acid are more uniformly mixed can be obtained.

 [0036] In addition, in the aqueous solution in which the potassium dihydrogen phosphate and phosphoric acid are mixed, for example, from the viewpoint of the smoothness of the obtained potassium metaphosphate, a network-forming element that substitutes the same type as phosphorus and other than Z or potassium It is also preferable to prepare potassium metaphosphate by uniformly mixing them, which may contain network modifying elements, and then spray drying.

 [0037] From the viewpoint of slipperiness after immersion, the firing temperature at the time of the condensation reaction is preferably 400 ° C or higher, more preferably 500 ° C or higher, and more preferably 600 ° C or higher. Further, from the viewpoint of energy consumption, 1500 ° C or lower is preferable, 1300 ° C or lower is more preferable, 1200 ° C or lower, force S, more preferable 800 ° C or lower is more preferable.

 [0038] It is preferable that the potassium metaphosphate obtained by firing has a small particle size from the viewpoint of suppressing the undissolved force and adhesion to clothing that are used in the subsequent granulation process. .

 [0039] Regarding the average particle diameter of potassium metaphosphate, the handling power is also preferably 0.5 μm or more, more preferably 1 μm or more, more preferably 5 μm or more, and even more preferably 10 μm or more. More preferable is 30 / zm or more. On the other hand, from the viewpoints of granulation and solubility (residual residue / resin adhesion to clothing), 300 μm or less is preferable, 200 μm or less is more preferable, and 100 m or less is more preferable.

[0040] As a method for adjusting the average particle diameter of potassium metaphosphate to the above range, a known pulverizer such as an atomizer manufactured by Fuji Padal Co., Ltd., a pin mill manufactured by Hosokawa Micron Co., Ltd., or a turbo mill manufactured by Turbo Industry Co., Ltd. may be used. A method of pulverizing is mentioned. [0041] The content of potassium metaphosphate is preferably 10% by weight or more, more preferably 30% by weight or more from the viewpoint of cohesiveness, in the granulated product of the smoothness improver for laundry of the present invention 50%. % Or more is more preferable. On the other hand, from the viewpoint of solubility, 95% by weight or less is preferred, 90% by weight or less is more preferred, and 80% by weight or less is more preferred.

 [0042] In the present invention, the potassium metaphosphate may be granulated alone, or may be granulated by mixing with a binder substance, a solubilizer or other components.

 [0043] 2. Binder material

 The noder substance is not particularly limited as long as it has the ability to bind the components constituting the slipperiness improver granulated product for washing, but from the viewpoint of the solubility of the granulated product, From the viewpoint of storage stability, which is preferable for water-soluble binders Thermoplastic water-soluble binders that solidify and bind at 40 ° C or below are more preferable. Examples of the water-soluble binder include positive ethylene glycol having an average molecular weight of 2000 to 30000, preferably 5000 to 15000, and saturated or unsaturated fatty acid having 8 to 18 carbon atoms. Among these, polyethylene glycol is preferable.ヽ. These may be used alone or in combination. The amount of the noinder substance is preferably 0.05 times or more by weight ratio with respect to potassium metaphosphate, 0.07 times or more is more preferred, and 10 times or less is preferred 4 times or less Is more preferably 3 times or less.

 [0044] 3. Solubilizer

 Potassium metaphosphate is extremely poorly soluble in water, but exhibits water solubility in the presence of a solubilizer. The solubilizer here refers to a compound containing a sodium ion source capable of substituting potassium in potassium metaphosphate, and a Z or lithium ion source and a Z or ammonium ion source. Therefore, by adding a compound that can be a source of sodium ions and Z or lithium ions and Z or ammonium ions into the washing liquid containing potassium metaphosphate, the potassium metaphosphate is dissolved and the washing water becomes a lotion-like. This results in a viscous solution, and as a result, there is an advantage that the smoothness between objects to be cleaned is improved and the hand washing property is improved.

[0045] The solubilizer includes all sodium sources and Z or lithium ion sources and Z or ammonium ion sources that replace potassium in potassium metaphosphate. Is mentioned. Also useful are inorganic and organic salts of sodium and lithium and ammonium, such as sodium carbonate, sodium chloride, sodium sulfate, sodium sulfite, sodium citrate, sodium carboxylate, sodium phosphate, sodium silicate. Polycarboxylic acid polymer sodium salt, polysulfonic acid polymer sodium salt, lithium halide and lithium sulfate. Among them, sodium inorganic salt or organic salt is more preferable. Surfactants or fatty acid salt forms, sequestering agents, and the like can also be solubilizers.

 [0046] Since the potassium metaphosphate is water-soluble when the potassium ions in the potassium metaphosphate are replaced with sodium ions and / or lithium ions and / or ammonium ions, good hand-washing and washing properties are obtained. Is required to be used in a state where potassium metaphosphate can be dissolved. An effect can be obtained if a part of potassium in potassium metaphosphate can be replaced, but from an economical viewpoint, sodium ions and Z or lithium in an amount that can completely replace the potassium ion in potassium metaphosphate contained in the washing liquid. Preferred is the amount of solubilizer that can supply ions and Z or ammonium ions. The amount of strong solubilizer is 0.5 times equivalent when the amount that can supply the same amount of sodium ion and Z or lithium ion and Z or ammonia ion as potassium ion in potassium metaphosphate is 1 equivalent. The above is preferred. The equivalent of 1 times or more is more preferred. The equivalent of 2 times or more is more preferred. The equivalent of 3 times or more is more preferred. On the other hand, in the presence of excess sodium ion and Z or lithium ion and Z or ammonium ion relative to potassium ion, the effect of improving hand washing and washing properties is small. In this respect, the amount of the solubilizer is preferably 400 times equivalent or less, more preferably 200 times equivalent or less, and even more preferably 100 times equivalent or less. Further, from the viewpoint of maintaining a smoothness improving effect, the amount is preferably 30 times equivalent or less, more preferably 20 times equivalent or less.

 [0047] It should be noted that if the detergent composition contains a necessary amount of sodium ion and Z or lithium ion and / or ammonium ion for another purpose, it is not necessary to add a solubilizer separately.

[0048] As the other components in the granulated product, any metal sequestering agent or key that can be used as long as it is generally used as a detergent composition without inhibiting the action of potassium metaphosphate. Acid salts, phosphates, and the like can be used as appropriate.

 [0049] Further, by appropriately selecting the type and amount of the granulation aid for the granulated product, it is possible to maintain further washability. Depending on the type and amount of the granulation aid, it is possible to incorporate potassium metaphosphate at a low level, increasing the degree of freedom of the activator formulation. In this case, the metaphosphoric acid power rhodium ratio in the granulated product is preferably 80% by weight or less, more preferably 60% by weight or less. Therefore, the granulated product of the present invention improves the washability while maintaining the detergency by improving the smoothness, although the degree of freedom of the blending amount is limited by the components such as the binder substance in the granulated product. It is characterized by the fact that it contains potassium metaphosphate that can meet the above-mentioned problem. In addition, granulation aids other than solubilizers include commonly used excipients. Specifically, starch derivatives such as Toxeal, starch, and pine flow, and decomposition products thereof.

 [0050] 4. Method for producing granulated material

 The granulated product of the present invention is a non-granulated general potassium metaphosphate that is granulated for uniform mixing with a solubilizing agent or the like that is not unevenly distributed, particularly when potassium metaphosphate is in a low blending amount. It is thought that it contributes to the manifestation of effects compared to the case of using The granulated product of the present invention is not particularly limited, but can be produced by, for example, a stirring rolling granulation method, an extrusion granulation method, a spray cooling method, or the like. The stirring rolling granulation method includes, for example, mixing potassium metaphosphate with other components such as a binder substance and a solubilizing agent thorium source and a Z or lithium source), and raising the temperature to dissolve the binder substance. The mixture is then granulated by stirring and mixing the potassium metaphosphate with other components such as potassium metaphosphate and the solubilizing agent thorium source and Z or lithium source). Method, a method of drying after adding a non-anode aqueous solution while stirring and mixing other components such as potassium metaphosphate and a soluble solubilizing agent thorium source and Z or lithium source) There is. As extrusion granulation method

For example, a method in which potassium metaphosphate and other components such as a binder substance and a solubilizer (sodium source and Z or lithium source) are melt-mixed and granulated through an extrusion granulator, potassium metaphosphate and In addition, there is a method in which an aqueous binder solution and other components such as a solubilizer (sodium source and Z or lithium source) are melt-mixed, granulated through an extrusion granulator, and then dried. Examples of the spray cooling method include potassium metaphosphate and a binder. There is a method that melts and mixes substances and other components such as solubilizers (sodium source and Z or lithium source) and sprays them into a low temperature space such as a nozzle cover to obtain a granulated product.

 [0051] When a solubilizer is used, potassium metaphosphate is dissolved and thickened by moisture in the presence of the solubilizer, so it is preferable to suppress moisture during granulation. In such a case, it is preferable to use a thermoplastic water-soluble binder which is solidified and has a binding property at 40 ° C. or lower as the binder material. Examples of water-soluble binders include positive ethylene glycol having an average molecular weight of 2000 to 30000, preferably <5,000 to 15000, saturated or unsaturated fatty acids having 8 to 18 carbon atoms, as described above. Of these, polyethylene glycol is preferred. Moreover, when using water and binder aqueous solution as a binder substance, it is preferable to fully dry in a post process.

 [0052] As an apparatus used for granulation, for example, a high-speed mixer manufactured by Fukae Kogyo Co., Ltd. and a pro-shear mixer manufactured by Taiheiyo Kogyo Co., Ltd. are used as an extruding granulator. There are pellet doubles made by Fuji Pudal Co., Ltd. and twin dome dunes made by Dalton Co., Ltd.

 [0053] For the purpose of improving the appearance and yield, etc., the granulated product obtained by the carving method may be sized by pulverization, spheroidization, or the like, if necessary. The equipment used for crushing includes a power mill manufactured by Dalton Co., Ltd., a flash mill manufactured by Fuji Padal Co., Ltd., a Fitz mill manufactured by Fitzpatric k (USA), a com mill manufactured by Comil (Kana), and Okada. Examples include a speed mill manufactured by Seie Co., Ltd., and an example of a spherical device is a Malmerizer manufactured by Fuji Padal Co., Ltd. When the thermoplastic water-soluble binder is used, it is preferable that the temperature supplied to the crusher is cooled to near room temperature. For example, a granulated product is supplied to a vibration cooler and cooled to a predetermined temperature. Crushing has the advantage that adhesion of the crushed material in the crusher is suppressed.

[0054] The sized granulated product may be adjusted to a desired particle size by classification in order to reduce fine powder and Z or coarse powder. By classifying and adjusting the particle size, the appearance during use can be improved. The fine particles and / or coarse powder produced by classification can be crushed and used as a raw material for granulation, or used as a raw material by remelting to improve the yield. [0055] 5. Granule quality

 The particle size of the granulated product of the present invention is more preferably 200 / zm or more, more preferably 150 m or more, and more preferably 200 m or more, with an average particle size of 100 m or more being preferred from the viewpoint of sustaining the effect of improving hand washing performance. Yes. Also, from the viewpoint of appearance and solubility, less than 2000 m is preferable and less than 1500 m, more preferably less than 1000 / z m. Here, the average particle diameter means a 50% diameter by weight.

 [0056] From the viewpoints of appearance and classification, the shape of the granulated product is not the most preferable spherical force. In the case of an extruded granulated product, the ratio of the extruded diameter to the length is 1. Recently, I like things. From the viewpoint of appearance, it is preferable that the particle size distribution is as uniform as possible. On the other hand, from the viewpoint of storage stability, the moisture value in the granulated product is preferably 10% by weight or less in the final product, more preferably 5% by weight or less, and even more preferably 1% by weight or less.

 [0057] <Detergent composition>

 The detergent composition of the present invention is greatly characterized in that it contains the above-mentioned laundry slipperiness improver granulated product, or the above-mentioned laundry slipperiness improver granulated product, a solubilizer and Z or other components. Because it has an attractive characteristic, the washing liquid in which the detergent composition is dissolved at the time of washing becomes a lotion-like viscous solution, and even when washing by hand, the smoothness between objects to be washed is improved. It improves hand-washing properties such as washing, and also provides hand-care and clothing-care effects that make the skin feel dry and soft after hand-washing and rinsing.

 [0058] The detergent composition may be a powder, granule, liquid, paste or the like, and may be formed into an aggregate, a tablet, etc. by secondary processing. It is preferable to be in the form of powder or granule so that it can be expressed quickly and evenly. In particular, it is preferred to use it as a washing powder detergent.

 [0059] The content of the laundry slipperiness improver granulated product in the detergent composition is preferably 0.1 to 30% by weight, more preferably 0.5 to 20% by weight.

[0060] The content of potassium metaphosphate in the detergent composition is preferably 0.5% by weight or more, more preferably 1% by weight or more in the detergent composition in order to improve the smoothness between the objects to be cleaned. 3% by weight or more is more preferable 5% by weight or more is more preferable 7% by weight or more Even more preferred is 10% by weight or more. Further, although the effect of improving the smoothness is high, the handleability of the object to be cleaned after cleaning is lowered, so 30% by weight or less is preferable, and 20% by weight or less is more preferable.

 [0061] In addition, from the viewpoint of good hand-washing and performance! When preparing a washing liquid by dissolving the detergent composition, the concentration of potassium metaphosphate in water is preferably 15 mgZL or more 30 mgZL or more 60 mg / L or more is more preferable. In addition, from the viewpoint of handling of the object to be cleaned after cleaning, 3000 mg / L or less is preferable, 1500 mg / L or less is more preferable, and 100 OmgZL or less is more preferable. In addition, the bath ratio (ratio of water to clothing weight: water weight Z clothing weight) is decreased, the washing liquid hardness is increased, the amount of nonionic surfactant in the detergent composition is increased, and the total surfactant components are increased. It is preferable to increase the concentration of the potassium metaphosphate water as the weight ratio of the detergent composition increases.

 [0062] The solubilizer may be the same as that used for the granulated product. Further, the amount of the solubilizer in the detergent composition is preferably 0.5 times equivalent or more, more preferably 1 time equivalent or more, more preferably 2 times equivalent or more with respect to potassium ions in potassium metaphosphate. More preferably 3 times equivalent or more is more preferred, and from the viewpoint of maintaining the smoothness improving effect, 30 times equivalent or less is preferred, and 20 times equivalent or less is more preferred. It should be noted that the soluble detergent is not necessarily contained in the detergent composition as long as it is contained in the laundry slipperiness improver granulated product.

 [0063] The detergent composition of the present invention may further contain a surfactant and Z or a builder.

[0064] As the surfactant, those generally used can be used. For example, an anionic surfactant and a nonionic surfactant are mentioned. Examples include alkyl benzene sulfonates, alkyl ethers or alkyl ether sulfates, alkyl or alkenyl sulfate esters, a-olefin sulfonates, alkane sulfonates, N-acyl amino acid types. Surfactant, alkyl or alkyl ether carboxylate, amino acid type surfactant, anionic surfactant such as alkyl or alkenyl phosphate ester or salt thereof, polyoxyalkylene alkyl (or alkyl ether) ether, polyoxy Ethylene alkylphenol ether, higher fatty acid alcohol amide or Nonionic surfactants such as alkylene oxide adducts, sucrose fatty acid esters, alkylglycosides, fatty acid glycerin monoesters and the like can be mentioned.

 [0065] Above all, from the viewpoint of enhancing the smoothness effect, alkylbenzene sulfonates, alkyl ether sulfates, and alkyl sulfate esters are preferred, and sodium alkylbenzene sulfonate is preferred! /.

 [0066] In the detergent composition, the content of the surfactant is preferably 5% by weight or more, more preferably 10% by weight or more, and further preferably 12% by weight or more from the viewpoint of cleaning performance. 15% by weight or more is more preferable, and 17% by weight or more is more preferable. Also, from the viewpoint of powder physical properties, 40% by weight or less is preferred, 35% by weight or less is more preferred, 30% by weight or less is more preferred, and 26% by weight or less is more preferred.

 [0067] In the detergent composition of the present invention, a surfactant such as a betaine-type amphoteric surfactant, a phosphate ester-based surfactant, a sarcophagus, and a cationic surfactant can be appropriately blended.

[0068] Examples of the builder include a sequestering agent, an alkaline agent, an anti-staining agent, and the like.

[0069] Above all, as the amount of hardness component in the wash water increases, the smoothness improving effect decreases, so as a builder, a sequestering agent is added to the detergent composition to capture the hardness component in the wash water. It is very effective for the performance expression of potassium metaphosphate. In addition, sequestering agents with a calcium ion scavenging capacity of lOOmgCaCO Zg or more are more suitable.

 Three

 It is effective. Examples of powerful sequestering agents include zeolites, ion exchangers such as crystalline silicates, polymers such as polyacrylates and acrylic acid-maleic acid copolymers (salts), sodium tripolyphosphate, ethylenediamine tetraacetate And water-soluble organic substances such as chelating agents such as methylglycine diacetate and citrate.

[0070] Note that potassium metaphosphate, sodium carbonate, and amorphous sodium silicate are not included in the sequestering agent.

 [0071] Examples of the alkali agent include carbonates and silicates. Amorphous sodium silicate is preferred from the viewpoint of enhancing the smoothness effect.

[0072] Examples of the anti-contamination agent include carboxymethyl cellulose, polyethylene glycol and the like. [0073] The blending amount of the builder is preferably 5% by weight or more, more preferably 10% by weight or more, and further preferably 15% by weight or more in the detergent composition from the viewpoint of improving hand washing properties. More than 30% by weight is more preferred, and from the viewpoint of blending balance, 60% by weight or less is preferred, 40% by weight or less is more preferred.

 [0074] Further, the detergent composition of the present invention has an advantage that the effect of improving the smoothness can be further improved by further blending the silicate and Z or phosphate.

 [0075] As the silicate, amorphous and crystalline are known, and any of them can be used. Here, SiO / M 2 O molar ratio (M is alkali metal) is preferably 1 or more.

 twenty two

 More preferably, 1.5 or more, more preferably 2, or more, and 4 or less is preferable, and 3 or less is more preferable. More preferably, it is amorphous sodium silicate, and JIS No. 1 sodium silicate can be suitably used. The blending amount is preferably 3% by weight or more, more preferably 5% by weight or more, and further preferably 7% by weight or more in the detergent composition from the viewpoint of hand washing and washing properties. Further, from the viewpoint of suppressing the undissolved residue at the time of washing while maintaining a smooth improvement effect, the blending amount is preferably 30% by weight or less, and more preferably 20% by weight or less.

 [0076] Examples of phosphates (excluding potassium metaphosphate) include sodium tripolyphosphate, sodium pyrophosphate, monosodium phosphate, disodium phosphate, trisodium phosphate, and the like. The preferred blending amount is 5% by weight or more, preferably 10% by weight or more, and more preferably 15% by weight or more in the detergent composition from the viewpoint of hand washing. Further, from the viewpoint of achieving both the smoothness improving effect and the detergency, 40% by weight or less is preferable, and 30% by weight or less is more preferable.

 [0077] In the present invention, among the above components, the sequestering agent, the catenate salt, and the phosphate salt are blended in the above amounts, so that the amount of potassium metaphosphate blended can be reduced, and hand washing and washing properties are achieved. Has the merit of being kept well.

 [0078] Enzymes, fragrances, fluorescent dyes, pigments, and the like can be appropriately blended in the detergent composition of the present invention.

[0079] The detergent composition of the present invention having the above-described configuration can be produced by appropriately mixing the above components by a known method. Examples of powerful detergent compositions include: Examples thereof include detergent compositions obtained by the composition and production method described in Japanese Patent Office Gazette 10 (1998) -25 (7159) Collection of Well-known and Conventional Techniques (powder detergents for clothing).

 [0080] As described above, potassium metaphosphate contained in the detergent composition of the present invention becomes water-soluble in water in the presence of a solubilizer as described above. It is preferable to reduce moisture during storage. For example, when a detergent composition is produced by the spray drying method, the smoothness improving agent granulated product may be added in the granulation step, the surface modification step and the after blending step after the spray drying step. desirable.

 [0081] Alternatively, a washing liquid may be prepared by separately adding a detergent composition composed of components excluding a smoothness improving agent granulated product and a smoothness improving agent granulated product during hand washing and washing. Good. The smoothness improver granulated product can be suitably used because it suppresses the generation of spatter during dissolution.

 [0082] By using the detergent composition of the present invention having the above-described structure, either the case where it is not soaked or the case where it is soaked is left undissolved so that it remains undissolved in the metaphosphoric acid rhodium and adheres to clothes. In this case, good smoothness between the objects to be cleaned is maintained, and it is easy to wash by hand without impairing the cleanability, and further, it is possible to provide hand care.

 Example

 [0083] Hereinafter, the present invention will be specifically described by way of examples. However, the present invention is not limited to these examples.

<Viscosity measurement method>

 Add 2 g of potassium metaphosphate to 50 mL of water and stir for 1 minute. Then, add a solution of 4 g of sodium tripolyphosphate (manufactured by Shimonoseki Mitsui Chemicals) in 50 mL of water and stir for 3 hours. Use a B-type viscometer to measure the viscosity at 25 ° C.

[0085] <Measurement of Na content>

 Dissolve 0. lg of sample in water, add 4 mL of HC1 (1: 1 (volume ratio)) aqueous solution, and scrape the entire volume by 50 mU. Using this solution, the amount of Na in the sample is measured with an atomic absorption spectrometer (atomic absorption spectrometer manufactured by VARIAN, Spectra AA220).

[0086] <Measurement of As content>

Dissolve 5 g of the sample in water, add 4 mL of HC1 (1: 1 (volume ratio)) aqueous solution, and bring the total volume to 50 mL. To do. Using this solution, the amount of As in the sample is measured with an ICP emission spectrometer (JY238ULTRAACE, manufactured by HORIBAZJOBIN Y VON).

<Measurement method of KZP molar ratio>

 Sample 0. lg is collected in a platinum crucible, and 5 g of Li B O and a stripping agent (Li CO: LiBr

 2 4 7 2 3

： LiNO = 5: 1: 1 (weight ratio)) 0.5g added, bead sampler (Tokyo Science Co., Ltd., NT—

Three

 2100) to melt at 1230 ° C to produce glass beads.

[0088] K and P in the glass beads are measured under the following conditions (XRF intensity) using a fluorescent X-ray apparatus (ZSXIOOe, manufactured by Rigaku Corporation).

 X-ray source: Rh tube

 Voltage current: 50kV 50mA

 Spectroscopic crystal: Detector angle

 • K: LiF SC (Scintillation counter) 136. 68deg

 • P: Ge PC (proportional counter) 141. 19deg

 [0089] The KZP molar ratio was calculated using KH 2 PO (manufactured by Sigma-Aldrich Japan Co., Ltd.

 Four

 Class) is measured in the same manner as the sample, and the KZP molar ratio of the sample is calculated by the following calculation using the KZP molar ratio of 1.00 as a reference.

 [0090] [Equation 1]

X R F intensity of K (sample) X R F intensity of P (reagent)

K / P molar ratio =

 X R F intensity of P (sample) X R F intensity of K (reagent)

<Measurement method of average particle diameter of potassium metaphosphate>

 Using a laser scattering particle size distribution analyzer (Horiba, LA-920), ion-exchanged water at 25 ° C under the conditions of refractive index 1.2, ultrasonic intensity 7, ultrasonic irradiation time 1 minute, stirring speed 4 A sample (potassium metaphosphate) is measured using as a dispersion medium, and the average particle diameter (μm) as a volume reference is obtained. The average particle diameter here refers to the median diameter.

[0092] <Measuring method of average particle diameter of granulated product>

The average particle diameter (Dp) indicates a 50% diameter by weight, and is measured and calculated by the following method. That is, 100 g of the granulated product used as a sample is a JIS Z8801- 1 metal mesh sieve (aperture: 2000 / zm, 1 410 μ νη, 1000 μm, 710 μ πι, 500 μm, 355 πι, 250 / zm, 180 πι, 125 μm) using a classifier consisting of a pan and a low-tap shaker.After performing the classification operation over 3 minutes, the weight frequency is accumulated in order from fine particles to coarse particles. When the opening of the first sieve with a weight frequency of 50% or more is set to am and the opening of the sieve that is one step larger than am is set to b _μm , the weight frequency from the tray to the a μm sieve If the total is c% and the weight frequency on the a / X m sieve is d%, it can be calculated according to the following formula.

Dp = 10 ^A (Formula)

 However, A = [50— (cd / (log b-log a) X log b)] / [d / (log b-log a)] Depending on the particle size of the target sample, the opening corresponding to the particle size Therefore, it is necessary to measure the size of the sieve.

[0093] Potassium metaphosphate preparation example 1

 2880 g of each KH PO containing Na and As in the amounts shown in Table 1 was dissolved in 36 liters of ion-exchanged water. Subsequently, HPO (manufactured by Wako Pure Chemical Industries, Ltd., reagent grade, purity 85%) was added so that the KZP molar ratio became the value shown in Table 1, followed by further stirring. This solution was spray-dried with a spray-drying apparatus (manufactured by Tokyo Rika Kikai Co., Ltd., spray dryer SD-100 type) to obtain a powder. Transfer the resulting powder to an alumina crucible, 700. C. Calcination was performed for 3 hours to obtain 1-1 to 1-5 potassium metaphosphate shown in Table 1.

[0094] [Table 1]

In addition, the obtained potassium metaphosphate was roughly pulverized with a hammer and then an atomizer (Fuji Powder Co., Ltd.) was used to rotate the hammer rotation speed during pulverization, raw material feed speed, screen opening By changing the ratio and the screen opening diameter, the particles were pulverized to a desired particle diameter, and the average particle diameter of each was measured. As for 1-1 potassium metaphosphate, two kinds of pulverized products having different average particle diameters were prepared.

 [0096] Base detergent composition preparation example 1

Water 370 kg, 50 wt _^0/0 aqueous sodium dodecylbenzenesulfonate solution 200 kg, 40 wt _^0/0 of the No. 2 silicate solution 50 kg, sodium carbonate 100 kg, of sodium sulfate 147. 5k g, polyethylene glycol 5 kg, CBS fluorescer 2. A homogeneous slurry was prepared by mixing 5 kg and 125 kg of zeolite, and then the slurry was spray-dried to obtain a base detergent composition.

 [0097] Examples 1-3 and Comparative Examples 1-2

 High-speed mixer (Mitsui Miike Co., Ltd.) adjusted to 80 ° C with 0.4 kg of potassium metaphosphate pulverized product shown in Table 2 and sodium lauryl sulfate (Kao Co., Ltd., Emar 10 powder) 0.086 kg , Capacity 2L, with jacket) and stirred under conditions of spindle speed 3600rZmin until the mixture temperature reached 70 ° C. Thereafter, 0.086 kg of polyethylene darcol adjusted to 70 ° C. (manufactured by Kao Corporation, KPEG6000) was added, and stirring was continued for another 3 minutes. Next, the obtained mixture was charged into an extrusion granulator (Dalton Co., Ltd., Dome Gran DG-L1 type) and extruded under the condition of an opening diameter of Φ Ο.5 mm to perform consolidation. The obtained extrudate is cooled and further pulverized using a granulator (Dalton Co., Ltd., power mill, screen φ 1. Omm) and classified to add an average particle size of 700 m or less. Adjusted to 355 m or more.

 [0098] The obtained extruded granulated product and the above-mentioned base detergent composition were respectively 4.3 wt% and 95.7 wt%.

The mixture was uniformly mixed at a ratio of% to obtain a detergent composition.

[0099] Comparative Examples 3 to 4

 In mixing with the base detergent composition, a pulverized product of potassium metaphosphate is used instead of the extruded granulated product, and the pulverized product and the base detergent composition are mixed in a proportion of 3.0% by weight and 97.0% by weight, respectively. A detergent composition was obtained in the same manner as in Example 1 except that the mixture was uniformly mixed.

[0100] Examples 4-5

In the preparation of the granulated product, the same procedure as in Example 1 was conducted except that sodium palmitate (powder product) and Pine Flow KH (made by Matsutani Sogaku Kogyo Co., Ltd.) shown in Table 3 were added as raw materials. An extruded granule was obtained. The obtained extruded granulated product and the base detergent composition were each 6% by weight.

% And 94% by weight were uniformly mixed to obtain a detergent composition.

In the present invention, it is possible to evaluate a preferable smoothness improving effect by performing hand washing and washing under washing conditions according to the following hand washing and washing evaluation methods.

[0102] Test Example 1 (Hand-washing laundry evaluation)

 Adjusted to 25 ° C 89. 2 liters of hard water equivalent to 3 mg CaCO Z liters (CaZMg

 Three

 = 7Z3 (molar ratio)) was filled into a 30-L diameter, 13-cm deep, 8.2-liter polypropylene washbasin (YAZAKI), and 8.48 g of the resulting detergent composition was weighed and poured into water. Then, stirring was continued by hand to such an extent that water did not scatter from the basin. After 30 seconds of stirring, 100% cotton T-shirt (Danze, white, L size) was soaked in the wash water in the basin so that the entire T-shirt was fully wetted. One minute and 15 minutes after the start of immersion, the following washing procedures (1) to (3) were performed, and the smoothness was evaluated based on the following evaluation criteria. In addition, after soaking for 15 minutes, the following washing procedures (1) and (2) were continuously repeated for 15 minutes, and the rubability at that time was similarly evaluated. For each detergent composition, the average value of the panel evaluation results of 6 persons was calculated. The results are shown in Tables 2 and 3. Note that Rank 1 in the evaluation criteria for slipperiness means that when this evaluation is performed using only the above-mentioned adjusted hard water, the wrinkles of the T-shirt inhibits the slipperiness and there are no bubbles in the rubbing part. Therefore, it indicates that the slipperiness is very poor. Incidentally, the smoothness rank is 1 when the same evaluation is performed for only the base detergent composition and only a domestic detergent not containing potassium metaphosphate.

 [0103] [Washing procedure]

 (1) Hold the T-shirt chest with both hands from the back of the T-shirt, and rub the T-chaster chests together while leaving the wash water.

 (2) Every time step (1) is repeated 3 to 5 times, and soak the portion to be rubbed against the washing water.

 (3) Repeat (1) and (2) five times in succession, and judge the ease of rubbing as a slippery when rubbing.

 [Evaluation criteria for smoothness]

Rank 1: The slipperiness is very low, and it is hard to wash by hand. Rank 2: Low smoothness and crispness, making it difficult to wash and wash by hand.

 Rank 3: The smoothness is moderate and there is no feeling of squeezing and it can be washed by hand.

 Rank 4: High smoothness and crispness.

 Rank 5: Very smooth and easy to wash and rinse without squeaky feeling.

[0105] Test Example 2 (Evaluation of dissolution residue)

 Washing machine washing was performed under the following conditions.

 • Washing machine: Matsushita Electric Corporation NA—F42Y5

 • Laundry garments: Black cloth (blend (polyester Z cotton = 65Z35 (weight ratio))) 20 sheets

 'Detergent: 40g

 .Washing course: Medium water level (40 liters of water display)

 Washing 9 minutes → Rinse 2 times → Dehydration 3 minutes → Drying (Leave for 24 hours at 20 ° C, 40% RH) After clothing drying, 10 out of 20 black cloths were arbitrarily selected. The water insoluble matter adhesion persistence to the black cloth at that time was evaluated based on the following evaluation criteria. The results are shown in Tables 2 and 3.

[Evaluation of adhesion / residuality]

 ○: No problem (no deposits)

 There is some adhesion

 X: There is a deposit

 X X: There is a large amount of adhered residue

[0107] [Table 2]

[0108] [Table 3] Example 1 Example 4 Example 5

 Potassium metaphosphate (number in Table 1) 1-1 1-1 1-1

 Average particle size after grinding (um) 60 60 60

 Granule composition Potassium metaphosphate (ground product) 70 (parts) 50 (parts) 50 (parts)

 Sodium lauryl sulfate 15 (part) 10 (part) 5 (part)

 Sodium palmitate 5 (part) 5 (part)

 / << Inflow KH-15 (part) 2 (part)

 Polyethylene glycol 15 (part) 20 (part) 2 (X part)

 Blend base detergent 95.7% 94.0% 94.0%

 Potassium metaphosphate granulate 4.3% 6.0% 6.0%

 Evaluation Smoothness (after 1 minute of immersion) 5.0 5.0 5.0

 Smoothness (after 5 minutes of immersion) 5.0 5.0 5.0

 Smoothness (after 15 minutes washing) 4.5 5.0 5.0

 Residual / adhesiveness ○ ○ ○

[0109] From the above results, the detergent compositions of Examples 1 to 3 containing a granulated product of potassium metaphosphate having a viscosity of 200 mPa · s or more maintain good sliding properties and also have residual Z adhesion. It turns out that there is no problem. On the other hand, the detergent compositions of Comparative Examples 1 and 2 containing a granulated product of potassium metaphosphate having a viscosity of less than 200 mPa's have no problem with residual Z adhesion, but the slipperiness is poor after 1 minute of immersion, In addition, it can be seen that the detergent compositions of Comparative Examples 3 to 4 using a pulverized product that is not a granulated product of potassium metaphosphate have good sliding properties after 1 minute of immersion, but deteriorate with time. In addition, the detergent compositions of Examples 4 to 5 with a reduced amount of potassium metaphosphate maintain good smoothness and there is no problem with residual Z adhesion. Thus, it can be seen that it is possible to prepare a detergent composition having a reduced amount of potassium metaphosphate by using a granulated product of potassium metaphosphate having a viscosity of 200 mPa · s or more.

 [0110] The smoothness improving agent granulated product for washing of the present invention is suitably used, for example, in hand-washing laundry such as clothes, especially in hand-washing washing soaked for a long time.

Claims

 The scope of the claims

 [I] A granulated product of a laundry slipperiness improver comprising potassium metaphosphate having an aqueous solution viscosity of 200 mPa's or more measured under the following conditions.

 [Add 2 g of potassium metaphosphate to 50 mL of water and stir for 1 minute. Then, add a solution of 4 g of sodium tripolyphosphate (Shimonoseki Mitsui Chemicals Co., Ltd.) in 50 mL of water and stir for 3 hours. Measure the viscosity at 25 ° C with a B-type viscometer. ]

[2] The content of a network forming element that is isomorphously substituted with phosphorus is 0.7 to 0.7 mmol, and the content of a network modifying element other than potassium is 1 to 10 mmol per 1 kg of potassium metaphosphate. Granulated product for improving smoothness of laundry.

[3] Aqueous solution of potassium metaphosphate containing potassium dihydrogen phosphate and phosphoric acid, or a network-forming element that is isomorphously substituted with potassium dihydrogen phosphate, phosphoric acid, phosphorus, and a network modifying element other than Z or potassium 3. The laundry slipperiness improver granulated product according to claim 1 or 2, which is obtained by spray-drying and baking.

[4] The slipperiness improving agent granule for washing according to any one of claims 1 to 3, wherein the average particle size of potassium metaphosphate is 0.5 μm or more and 200 μm or less.

[5] The laundry slipperiness improver granulated product according to any one of claims 1 to 4, further comprising a binder substance.

 [6] The laundry slipperiness improver granulated product according to claim 5, wherein the binder substance is polyethylene glycol.

 [7] The laundry improver granulated product according to any one of 1 to 6, further comprising a solubilizer.

[8] The slipperiness improving agent granule for washing according to any one of claims 1 to 7, which is for hand washing and washing.

[9] The laundry slipping improver granulated product according to any one of claims 1 to 8, wherein the average particle size is 100 μm or more and less than 2000 μm.

[10] A detergent composition containing the laundry slipperiness improver granule according to any one of claims 1 to 9.

 [II] A detergent composition comprising the laundry slipperiness improver granulated product according to any one of claims 1 to 9 and a solubilizer.

[12] The detergent composition according to claim 10 or 11, further comprising a surfactant and Z or a builder. 13. Wash the detergent composition according to any one of claims 10 to 12 with water so that the potassium metaphosphate concentration is 15 mgZL or more!方法 How to wash.