JPH11228996A - Preparation of sheet laundry composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a composition having good release properties without adhering to rollers by molding one or more compositions selected from a detergent composition for clothing, a fiber softener composition and a bleaching agent composition into a sheet by multistage roll. SOLUTION: One or more compositions selected from a detergent composition for clothing, a fiber softener composition and a bleaching agent composition in the form of a kneaded mass having a water content of not more than 15 wt.% and a roller adhesion of 20 g/cm<2> are introduced to multistage roll where a plurality of rollers are rotating counter to one another under the conditions that the ratio of circumferential velocity of two rollers is 1.1-10 and the ratio of gap is 1.2-10 to obtain a sheet composition having a thickness of 0.1-3.0 mm and a tensile strength of 50-1,000 g/cm<2> . The detergent composition for clothing contains anionic and nonionic surface active agents, a water soluble inorganic salt, a builder or the like; the fiber softener composition contains a quaternary ammonium salt as the softener base material; and the bleaching agent composition contains sodium peroxide, sodium perborate hydrate or the like which comes to the source of generating hydrogen peroxide.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for producing a sheet-like laundry composition at high speed and in a stable manner.

[0002]

2. Description of the Prior Art There are various means for obtaining a sheet-like product, but roll-forming by a roll may be the most efficient. Roll forming technology is mainly used in the fields of steel, polymers, foods and the like, and this is largely due to the fact that the properties of these raw materials are suitable for roll forming. However, for raw materials or products that are not suitable for roll forming such as detergent compositions,
Roll forming was disadvantageous, especially in terms of production capacity and quality.

[0003] Among the detergent compositions, those formed of a solid phase are usually difficult to elongate, and most of them require a large amount of energy to form a sheet. Since the detergent composition formed of the solid phase has strong elasticity and is hardly stretched, when passed through a roll forming machine, a large pressure is applied to the roll. This pressure acts as a reaction force and hinders the supply of the cleaning composition to the roll forming machine, so that the roll speed cannot be increased and the production capacity is reduced. Even if it could be forcibly supplied, there was a drawback that the strong pressure exerted a strong adhesive force between the cleaning composition and the roll, and the cleaning composition adhered to the roll and could not be formed into a sheet. .

[0004] In this respect, in the field of steel and polymers, when heat is applied to a raw material, the raw material is melted and flows in a liquid phase or in accordance with the liquid phase. It can be said that the raw material properties are suitable for roll forming. In the field of foods and the like, since it does not require much production capacity, it can be said that it is suitable for roll forming in that there is no problem in forming at a relatively slow speed.

[0005] Among the detergent compositions, in the field of soap such as solid soap, there is a production method using a roll (JP-A-8-209198, JP-A-8-269499, JP-A-8-31499). In each case, a roll is used to obtain a more uniform kneading state by passing a soap raw material through at least the gap between the pair of rolls. In particular, Japanese Patent Application Laid-Open No. 8-269499 discloses a method for producing a solid soap using three rolls, but the three rolls are used as a crusher or a kneader, and the molding is fundamentally performed. The purpose is different.

On the other hand, currently available powder detergent products for clothing are so-called compact type powder detergents having a bulk density of 0.7 g / cm ³ or more, and are very easy to carry around. There is a problem with scattering of the detergent powder when the detergent is introduced. If the powder scatters on the floor or the like, it is necessary to clean the floor. If water is spilled when the powder is not cleaned, the floor may become slippery and may cause dangers. From these points as well, it is highly desired to solve the problem of scattering of powders such as detergents.

[0007] In order to improve ease of use and to prevent scattering of detergent powder during use, an amount of detergent per wash is pre-packaged with a water-soluble, water-permeable or water-dispersible material. Sheet or one-pack detergents have been proposed (JP-A-63-8496, JP-A-63-8).
497 and JP-A-63-12467). However, these proposals do not address the above manufacturing problems and have not solved these problems.

[0008]

Means for Solving the Problems The present inventors have developed a method for producing a sheet-like laundry composition, which can be used as a sheet-like laundry product as it is, or can be processed into a sheet-like laundry product. Study was carried out. As a result, by performing molding using multi-stage rolls, the pressure applied to each roll during roll molding is reduced, thereby improving productivity,
The present inventors have found a method for producing a sheet-like laundry composition in which the detergent composition does not adhere to the roll and has good releasability, and have completed the present invention.

That is, the present invention relates to a detergent composition for clothing,
What is provided is a method for producing a sheet-like laundry composition, wherein one or more kinds of compositions selected from a fiber softening composition and a bleaching composition are formed into a sheet by a multi-stage roll. It is.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [Cleaning composition for clothing] The cleaning composition for clothing that can be used in the present invention is an anionic surfactant or a nonionic surfactant generally used in this field. Surfactants, water-soluble inorganic salts, builders, chelating agents, redeposition inhibitors, enzymes, sulfites, soil release agents, dye transfer inhibitors, fluorescent dyes, fragrances, clays, silicones and other foam inhibitors, It may be composed of a carbonate, a perborate, a bleach activator, a granulation aid such as a high molecular weight polyethylene glycol, etc., and is not particularly limited.

[Softening agent composition for fiber] As the softening agent for fiber which can be used in the present invention, a known softening agent having a quaternary ammonium salt as a softening base can be used.
In particular, a quaternary ammonium salt of a di-long chain alkyl type is preferable, and -COO-, -OCO-, -N
It may include a linking group such as HCO- and -CONH-. Further, as an optional component, a fragrance, a pigment, a silicone compound, an antibacterial agent, a solvent, a water-soluble salt, or the like may be contained.

[Bleach composition] The bleaching agent used in the present invention includes surfactants generally used in this field, such as anionic surfactants and nonionic surfactants, and water-soluble inorganic salts. , Zeolite and other builders, chelating agents, anti-staining agents, enzymes, sulfites, soil release agents, dye transfer inhibitors, fluorescent dyes, fragrances, clays, silicones and other foam inhibitors, percarbonates, perborates , A bleaching activator, a granulation aid such as high molecular weight polyethylene glycol, etc., and are not particularly limited. As a preferred example, a known bleach containing a peroxide that is a source of hydrogen peroxide can be used. As peroxides, sodium carbonate / hydrogen peroxide adduct, sodium tripolyphosphate / hydrogen peroxide adduct, sodium pyropolyphosphate /
Hydrogen peroxide adduct, urea / hydrogen peroxide adduct, 4Na ₂
• SO ₄ .H ₂ O ₂ .NaCl, sodium perborate monohydrate, sodium perborate tetrahydrate, sodium peroxide, calcium peroxide and the like. Among these, sodium carbonate / hydrogen peroxide adduct, sodium perborate monohydrate and sodium perborate tetrahydrate are particularly preferred. The peroxide is present in the bleach used in the present invention in an amount of from 1 to 9%.
5% by weight, preferably 10 to 90% by weight.

[Multi-stage roll] As the multi-stage roll used in the present invention, a multi-stage roll such as a three-roll or a four-roll in which three or more rolls rotating in directions opposite to each other are arranged adjacent to each other is exemplified. Rolls are preferred. In addition, the number of rotations of each roll increases in order from the supply port of the composition, that is, the peripheral speed of the multi-stage roll gradually increases along the passage of the composition, and is adjacent along the passage of the composition. The ratio of the two roll peripheral speeds in a positional relationship is 1.
It is preferably from 1 to 10. That is, the peripheral speed of the n-th roll (n is an integer of 2 or more) is 1.1 to 10 times higher than the peripheral speed of the adjacent (n-1) -th roll in the passage of the composition. preferable. Preferably it is 1.5 to 8 times, more preferably 2 to 5 times.
If it is less than 1.1 times, the molding pressure applied to the laundry composition due to the roll clearance becomes too large, and the laundry composition adheres too strongly to the roll. Or do not bite into the next roll due to elasticity. If it exceeds 10 times, the external force received by the rotation of the roll becomes too large, and the molded product breaks (breaks).

In the case of this multi-stage roll, the gap (clearance) between the rolls becomes narrower in order from the entrance.
That is, it is preferable that the roll gap of the multi-stage roll gradually decreases along the passage path of the composition, and the ratio of two roll gaps adjacent to each other along this path is 1.2 to 10. That is, the (n-1) (n is an integer of 2 or more) clearance is 1.2 to 1 more than the adjacent n-th clearance in the passage of the composition.
It is preferably 0 times larger. Preferably 1.5 to 8 times,
More preferably, it is 2 to 5 times. If the clearance ratio is smaller than 1.2 times, the molded product will not be transferred to the next roll. If it exceeds 10 times, the molding pressure will be too large and will be too strongly adhered to the roll. Or for elasticity,
Don't bite into the next roll.

As the multi-stage roll used in the present invention, a plurality of sets of two rolls rotating in mutually opposite directions are arranged, in other words, a gauge roll or the like in which the two rolls are combined as a set is used. A multi-stage roll in which a plurality of sets are arranged in the direction in which the composition for molding is formed, a plurality of freely rotating rolls are fitted on a shaft that runs an elliptical orbit, and a conveyor is provided facing the elliptical locus. Lee roller and the like. Even in a multi-stage roll in which a plurality of sets of gauge rolls and the like in which these two rolls are combined are arranged,
As described above, it is preferable that the roll gap gradually decreases along the moving direction of the composition, and it is preferable that the circumferential speed of the roll gradually increases along the moving direction of the composition. At this time, it is preferable that the ratio of the gap between the rolls and the peripheral speed at this time is in accordance with the above-described three-stage roll. Planetary rollers are
If there is any adhesion to the roll, there is a problem in molding. Therefore, in order to prevent the adhesion, it is preferable to sprinkle an anti-adhesion agent such as dusting powder between the washing composition or the molded product and the roll.

[Method for Preparing Sheet-like Laundry Composition] A method for preparing the sheet-like laundry composition of the present invention will be described. In the present invention, a sheet-like laundry composition is obtained by supplying the laundry composition to a multi-stage roll and forming it into a sheet.

In the present invention, the laundry composition can be supplied to a multi-stage roll in powder or granular form, or can be supplied in a dough form. Here, "dough" refers to a kneaded product of the powder composition and a small amount of liquid, and the liquid includes those which are liquefied by heating. The dough-like composition can be prepared by a universal stirrer, a stirrer or a stirring operation suitable for high-viscosity stirring such as kneading with a kneader or a hand. The plasticity of the kneaded material can be adjusted by adjusting the kneading time and temperature. In order to suppress the leakage of the contents at the time of breaking, it is preferable that the viscosity of the kneaded material exceeds 100,000 mPa · s. In the preparation of the dough, when a component which is liable to undergo thermal denaturation, such as an enzyme or a bleaching component, is added, the temperature during stirring is preferably as low as 40 ° C. or less. Other, KR
Continuous kneaders such as C kneaders and extruders can also be used.

It is also possible to obtain a sheet-like laundry product in which a water-soluble substrate is disposed on both sides of a thin layer of the laundry composition as means for maintaining the thin layer. In this case, the dough-like laundering composition is formed into a sheet by a multi-stage roll, and at least one or more water-soluble substrates are attached to both sides of the dough-like laundering composition. Is supplied between two or more water-soluble substrates moving by the rotation of a roller or the like, while compression molding with the same or different rollers or the like, at least one or more layers of the dough-shaped laundry composition spread. Examples include a method in which the composition is applied to a water-soluble substrate, and at least one layer of the water-soluble substrate is adhered on the applied composition. The roller used for these may or may not be a multi-stage roll, but a multi-stage roll is used in the step of forming the laundry composition into a sheet. Also,
There is also a method in which a raw material solution of a water-soluble substrate is sprayed and applied to the surface of a sheet to form a polymer film.

As the water-soluble substrate used in the above, a water-soluble film, a nonwoven fabric or woven fabric composed of a water-soluble polymer fiber, or a laminated substrate of a nonwoven fabric or woven fabric composed of a water-soluble film and a water-soluble polymer fiber is used. preferable.
Among these water-soluble substrates, the water-soluble nonwoven fabric has reduced stickiness to the hand when touched by wet or extremely wet hands, has a good feel, and adheres to sheet-like laundry products during storage. It is more preferable that the problem is reduced. On the other hand, in the case of a water-soluble film, a similar effect can be obtained by embossing the surface, so that the embossing effect on the water-soluble film is preferable. These water-soluble substrates are composed of a water-soluble polymer. Specifically, polyvinyl alcohol, polyvinylpyrrolidone, pullulan, polyacrylamide, polyacrylic acid, polymethacrylic acid, polyitaconic acid, polyethylene oxide, polyvinyl methylene ether, xanthan gum, guar gum, collagen,
Examples include carboxymethyl cellulose, hydroxypropyl cellulose and hydroxyethyl cellulose,
Particularly, polyvinyl alcohol or polyvinyl alcohol modified with maleic acid or itaconic acid is preferred.

Among such water-soluble substrates, examples of the water-soluble nonwoven fabric include JP-A-8-127919 and JP-A-8-279919.
JP-A-3848, JP-A-5-321105, JP-A-7-42019, JP-A-3-86530, JP-A-3-279410, JP-A-3-199
408, JP-A-2-112406 and JP-A-61-75862. As the woven fabric, those obtained from the various water-soluble polymer fibers described above can be used. In addition, the diameter of the water-soluble polymer fiber constituting the nonwoven fabric or the woven fabric is preferably from 5 to 200 μm, particularly preferably from 5 to 50 μm.

Examples of the water-soluble film include US Pat. No. 3,186,869, US Pat. No. 3,198,740,
US Patent No. 3280037, US Patent No. 332267
4, No. 48-33837, 48-883.
No. 43, 50-140958, 51-1
No. 50, No. 52-77961, No. 55-15
1853, 57-1851, JP-A-59
No. -180085, No. 61-57700, No. 61-97348, No. 61-98752,
Nos. 61-200146, 61-200147, 61-204254, 61-2280
Nos. 57 and 62-57492 and 62-15
Nos. 6112, 62-275145, 63
-8496, 63-8497, 63-
Nos. 12466, 63-12467 and 64
JP-A-29408, JP-A-64-29438, JP-A-2-60906, JP-A-2-108534,
JP-A-2-163149, JP-A-3-59059,
Nos. 4-53900, 4-57989, 4-63899, 4-72180, and 4
Examples of the films include those described in JP-A-1477000, JP-A-4-164998, JP-A-4-174792, JP-A-4-202600, and the like.

Further, as the water-soluble substrate of the present invention, a non-woven fabric or a woven fabric composed of the above-mentioned water-soluble polymer fiber and a laminated substrate composed of a water-soluble film can be used. As a method for obtaining such a laminated substrate, other than a method in which a water-soluble film is overlaid on one surface of a nonwoven fabric or the like and bonded by heat sealing or the like, a film is formed by applying a water-soluble polymer to one surface of a nonwoven fabric or the like. Method. When such a laminated substrate is used, it is preferable that the water-soluble film is arranged so as to be in contact with the composition layer, and the outside is made of nonwoven fabric or the like.

Among the water-soluble substrates exemplified above, a non-woven fabric or a woven fabric made of a water-soluble polymer fiber is preferable because of the easiness of tearing when adjusting the amount of use, and in particular, polyvinyl alcohol, maleic acid, itaconic acid and the like. Nonwoven fabrics or woven fabrics obtained by using fibers made of polyvinyl alcohol modified with are preferred. Further, a water-soluble laminated substrate in which a water-soluble film made of polyvinyl alcohol or polyvinyl alcohol modified with maleic acid or itaconic acid is laminated on the inside of a nonwoven fabric or woven fabric made of this water-soluble polymer fiber, is also preferable.

The sheet-like laundry product obtained as described above has a thin layer containing the laundry composition and means for maintaining the thin layer, and the thin layer is formed continuously or discontinuously. And the retaining means may be located either externally or internally to the lamina. Examples are shown in FIGS. In FIG. 2, 1 is a thin layer containing the laundry composition,
Reference numeral 2 'denotes a retaining means, and in this example, a water-soluble sheet disposed on both sides of the thin layer is used as the retaining means.
FIG. 3 shows a sheet-like laundry product comprising a composition layer 21 and a laminated substrate as a maintenance means, wherein the water-soluble films 23, 23 'of the laminated substrate are arranged so as to be in contact with the composition layer 21, and the outer side thereof Water-soluble nonwoven fabrics 22, 22 'are arranged.

When the sheet-like laundry composition formed into a sheet by a multi-stage roll is in the form of a dough, the surface is coated with particles of a water-soluble substance or a water-soluble fiber to reduce the tackiness of the surface of the dough. It is also possible.

Among the laundry compositions used in the present invention,
Preferably, the water content in the cleaning composition is less than 15%. More preferably, the water content of the cleaning composition is less than 9%. These water contents can be adjusted by paying attention to the water content used during the adjustment and the degree of drying. In particular, when forming a dough, an organic solvent, a nonionic surfactant, or a polyalkylene glycol having a molecular weight of 2,000 or less, such as polyethylene glycol or polypropylene glycol, an organic alkali agent of alkylbenzenesulfonic acid and amines, or a water-soluble inorganic salt. Using a mixture of alkaline agents, anionic surfactants, amphoteric surfactants, cationic surfactants, and organic substances such as soil release agents to form a plastic-like dough having substantially no fluidity Is preferred.

A more preferred embodiment of the cleaning composition used in the present invention will be described in detail. The water content of the cleaning composition used in the present invention is preferably 15% by weight or less, more preferably 9% by weight or less, when using a water-soluble substrate. When the water content exceeds 15% by weight, the water-soluble substrates located on both sides of the thin layer of the cleaning composition partially melt and become tacky, and the sheet-like detergents adhere to each other. When stored under humidity, the detergent composition dries and becomes very brittle, and the sheet-like flexibility cannot be maintained in practical use. Here, the water content is a weight loss when dried at 105 ° C. for 1 hour, and excludes water of crystallization contained in inorganic salts such as zeolite and carbonate and organic salts such as citric acid. Is done.

In order to maintain the flexibility of the dough, it is also preferable to adjust the mixing ratio of the inorganic compound and the organic compound in the composition. The preferred mixing ratio of the organic compound and the inorganic compound is organic compound / inorganic compound = 80/20 to 10/9.
0 (weight ratio), more preferably 70/30 to 15
/ 85. When this ratio exceeds 80/20, it becomes easy to process by coating or the like. However, when a sheet is formed into a sandwich using two or more substrates, the leakage of the cleaning active substance gradually and gradually passes through the substrates. It is not preferable because it occurs. This is particularly noticeable when a liquid organic substance is used. On the other hand, when the ratio is less than 10/90, it becomes difficult to obtain a uniform dough by stirring. Further, when the sheet is formed into a sandwich by using a substrate, the brittleness of the cleaning active substance becomes extremely high, and the cleaning active substance at the time of rupture leaks in a powder form, which is not preferable.

From the above, the detergent composition used in the present invention has a total organic content (a) and a total inorganic content (b).
The point A of the triangular coordinates shown in FIG.
[(A) 68 / (b) 17 / (c) 15], point B
[(A) 80 / (b) 20 / (c) 0], point C [(a)
10 / (b) 90 / (c) 0] and point D [(a) 8.5.
/(B)76.5/(c)15]. More preferably, point E [(a) 63.7
/(B)27.3/(c)9], point F [(a) 70 /
(B) 30 / (c) 0], point G [(a) 15 / (b) 8
5 / (c) 0] and point H [(a) 13.7 / (b) 7
7.4 / (c) 9].

Further, the constituent ratio in the detergent composition for clothing will be described. At this time, in all organic substances,
The mixing ratio between the liquid organic substance and the solid organic substance at room temperature is preferably 10/1 to 1/10, more preferably 1: 1.
0/2 to 2/10. If the ratio of the liquid organic substance is higher than this, it is necessary to use a large amount of the inorganic liquid absorbing compound in order to prevent the liquid substance from bleeding from the dough, which is not economically preferable. On the other hand, when an organic substance which is solid at room temperature, particularly a surfactant, is used in excess of the above range, the solubility is undesirably reduced.

As an optional component in the detergent composition used in the present invention, urea, a cumosulfonic acid and toluene sulfone, which are generally used as a hydrotrope, are generally used for promoting the solubility of a high-density detergent. It is preferable to add a lower alkylbenzene sulfonic acid such as an acid or a benzoate or a lower alkylbenzene carboxylic acid.

Further, it is preferable to add a plasticity modifier to the sheet-like laundry composition obtained by the present invention for the purpose of imparting softness when processed into a sheet. Examples of plasticity modifiers that can be used include glycerin, sorbitol, polyhydric alcohols such as ethylene glycol for the purpose of imparting softness, and when the base is too soft and easily leaks between water-soluble substrates. For the purpose of imparting hardness, higher fatty acids having 8 to 24 carbon atoms, 8 to 24 carbon atoms
Higher alcohols, molecular weight 1,000-100,000
Methylcellulose and carboxymethylcellulose. Furthermore, high molecular weight compounds such as polyethylene bricol having a molecular weight of 200 to 60,000 and dextrin having a molecular weight of 200 to 100,000 have low molecular weight compounds for the purpose of imparting softness and high molecular weight compounds for the purpose of imparting hardness. Compounds can be added. In particular, when making a dough, an organic solvent, a nonionic surfactant, or a polyalkylene glycol having a molecular weight of 2000 or less, such as polyethylene glycol or polypropylene glycol,
A mixture of an alkyl benzene sulfonic acid and an organic alkali agent of an amine or an alkali agent of a water-soluble inorganic salt, an organic surfactant such as an anionic surfactant, an amphoteric surfactant, a cationic surfactant, or a soil release agent. It is preferable to use a plastic dough having no fluidity.

The sheet-like laundry composition obtained according to the present invention has a tensile strength of 50 to 1000 g / cm ² , preferably 100 to 800 g / cm ² , more preferably 200 to 800 g / cm ² .
５００500 g / cm ² . Tensile strength is 50g / cm
If it is smaller than ² , the strength of the molded product when supplied from roll set to roll set is insufficient, and breakage occurs. 1000g
If it exceeds / cm ² , the solubility when introduced into water as a cleaning agent will decrease. This tensile strength is based on JIS K
No. 1 test piece of 7113 plastic tensile test method,
It is measured according to the No. 3 test piece or the No. 4 test piece, and does not include a maintenance means such as a water-soluble substrate.

In the present invention, the adhesiveness of the laundry composition supplied to the multi-stage roll (the measuring method will be described later) is 20 g.
/ Cm ² or more and smaller than the maximum elongation stress of the sheet. Preferably it is 50-800 g / cm < ² >, More preferably, it is 100-500 g / cm < ² >. 20g
If it is less than / cm ² , the adhesive force between the roll and the laundry composition is insufficient, and the roll and the laundry composition slip, and good molding cannot be performed. If the value of the maximum elongation stress is exceeded, the adhesive force between the roll and the laundry composition is too large, and the molded article breaks before the molded article is peeled off the roll.

The tensile strength of the sheet-like laundry composition must be larger than the adhesive strength of the laundry composition. Even if the adhesive force is within the above range, if it exceeds the tensile strength,
This is because the molded product is broken before the laundry composition is peeled off.

The sheet-like laundry composition obtained according to the present invention has a thickness not containing a water-soluble substrate of 0.1 to 0.1%.
It is preferably 3.0 mm. Preferably 0.5 to
It is 2.5 mm, more preferably 1-2 mm. 0.1
If it is thinner than mm, it will not be a laundry product that can withstand practical use.
If the thickness is more than 3.0 mm, the solubility of the product decreases.

[0037]

The present invention will be described below in detail with reference to examples. The present invention is not limited to these.

<Measurement Methods of Physical Properties> The following physical properties were evaluated in Examples and Comparative Examples.

[Measurement Method of Tensile Strength and Tensile Elongation at Break] The measurement is carried out according to JIS K 7113 plastic tensile test method No. 1, No. 3, or No. 4 test piece.

[Measurement Method of Adhesive Force] Adhesive force is measured as the adhesive force between a material having the same material as the roll used and the laundry composition. A laundry composition was formed into a cylindrical shape having a diameter of 30 mm and a height of 40 mm, and was made of the same material as the roll used on the upper surface and a compression adapter having the same specularity (Reotech Co., Ltd., according to Rheometer Adapter No. 330φ. Using a rheometer (Reotech, R
(T-3020D-CW type), it is displaced by 10 mm in the z-axis direction at a speed of 2 cm / min. Immediately thereafter, the compression adapter is peeled off from the cylindrically shaped laundry composition, the maximum tensile stress at that time is measured, and this is defined as the adhesive force.

Example 1 Dodecyldimethylamine oxide 7 from which water was previously removed
50 g, Mitsubishi Chemical Co., Ltd. "Nonidet R-7" [polyoxyethylene (7) alkyl (C ₁₂ -C ₁₅₎ ether] sulfated product (Na salt) of 300 g, Nippon Shokubai Kagaku Kogyo Co. "Softanol EP7045" [ C ₁₂ -C ₁₄ secondary alcohol polyoxyethylene (7) polyoxypropylene Pro-plane (4.5) glycol] 150 g, Toyo Soda Co., Ltd. A4 type zeolite 1200 g, acrylic acid - maleic acid copolymer K salt ( 120 g of molecular weight 60000), 240 g of soda ash, polypropylene glycol (molecular weight 100
0) 75 g, "Thixo Rex 2" manufactured by Kofran Chemical Co.
5 "90 g, d-limonene 6 g, 27 g of protease" API-21 "manufactured by Showa Denko KK, and" Cellzyme 1.0T "2 manufactured by Novo Industries as cellulase.
7 g, 15 g of "Termamyl 6.0T" manufactured by Novo Industries as an amylase, 6 g of "Lipolase 100T" manufactured by Novo Industries as a lipase, 6 g of "Tinopearl CBS-X" manufactured by Ciba Geigy as a fluorescent dye,
The mixture was mixed with a Dalton 25DM mixer to obtain a detergent composition.

Next, the above detergent composition was inserted into a three-stage roll in which three stainless steel rollers having a diameter of 40 mm, which were designed to rotate in mutually opposite directions, were formed into a roll, and a sheet was formed. A detergent composition was obtained.

At this time, the tensile strength of the detergent composition was 300.
g / cm ² and the adhesion was 100 g / cm ² . The ratio of the peripheral speeds of the first, second and third rolls is 1: 2:
It was 4. The clearances of the first and second, second and third rolls were 3.5 mm and 1.5 mm.

The molding speed at this time was 40 m / min, and very high speed and stable molding could be performed. The thickness of the obtained sheet-like cleaning agent was 1.8 mm.

Example 2 Three sets of gauge rolls each having two stainless steel rollers each having a diameter of 120 mm and designed to rotate the detergent composition obtained in Example 1 in directions opposite to each other were arranged. It was fed to a multi-stage roll. The gap between the first set of rolls is 5
mm, the gap between the second set of rolls was 3 mm, and the gap between the third set of rolls was 1.5 mm. The ratio of the peripheral speed of the first set, the second set, and the third set was 3.3: 2: 1. With this method, very high-speed and stable molding was achieved. The thickness of the obtained sheet-like cleaning agent was 1.7 mm.

Comparative Example 1 The detergent composition obtained in Example 1 was placed on a gauge roll provided with two stainless steel rollers having a diameter of 120 mm and designed to rotate in mutually opposite directions. An object was inserted and roll forming was attempted. The gap between the rolls was 1.5 mm. As a result, although the detergent composition was apparently formed into a sheet, the detergent composition was attached to the stainless steel roll, and the sheet-shaped detergent composition was not obtained even when the molding speed was changed.

[Brief description of the drawings]

FIG. 1 is a triangular coordinate showing the ratio of the total organic substance content (a) to the total inorganic substance content (b) and the water content (c) in the cleaning composition used in the present invention.

FIG. 2 is a schematic view showing an example of a sheet-like laundry product obtained by the present invention.

FIG. 3 is a schematic view showing another example of a sheet-like laundry product obtained by the present invention.

[Explanation of symbols]

 1: composition layer 2, 2 ': water-soluble nonwoven fabric 21: composition layer 22, 22': water-soluble nonwoven fabric 23, 23 ': water-soluble film

Claims (5)

[Claims] 1. A sheet is formed by passing one or more compositions selected from a detergent composition for clothing, a fiber softening composition and a bleaching composition through a multi-stage roll. A method for producing a sheet-like laundry composition, comprising: 2. The method for producing a sheet-like laundry composition according to claim 1, wherein the multi-stage roll is a multi-stage roll in which three or more rolls rotating in mutually opposite directions are arranged adjacently. 3. The method according to claim 1, wherein said multi-stage roll is a multi-stage roll in which a plurality of sets of two rolls rotating in mutually opposite directions are arranged. 4. The roll gap of the multi-stage roll gradually decreases along the passage path of the composition, and the ratio of two adjacent roll gaps along this path is 1.2.
The method for producing a sheet-like laundry composition according to any one of claims 1 to 3, wherein the composition is from 10 to 10. 5. The roll peripheral speed of the multi-stage roll gradually increases along a passage path of the composition, and the ratio of two roll peripheral speeds adjacent to each other along this path is:
The method according to any one of claims 1 to 4, wherein the composition is 1.1 to 10.