JP2004329585A - Sheet for cleaning - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet for cleaning capable of coping even with the hair and oil stains which could not be wiped off sufficiently with a conventional product, and reducing resistance at the time of cleaning. <P>SOLUTION: For the sheet for cleaning, a cleaning surface is composed of the surface layer part nonwoven fabric of METSUKE(basis weight) 6-50 g/m<SP>2</SP>manufactured by an airlaid method, which is composed of thermobonding synthetic fibers of fineness 6-50 dt and fiber length 2-8 mm. Further, a fiber end index (SI value) indicated below in the nonwoven fabric is 18,000-180,000: SI value=S×D<SP>2</SP>, where S=A×9,000×2/(D×L×10) provided that S: the number of fiber ends (piece/cm<SP>2</SP>), A: METSUKE (g/m<SP>2</SP>), D: fineness (dt), and L: fiber length (mm). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【００４２】
＜注＞含浸液の組成：水／エチルアルコール＝９０／１０ｗｔ％（ただし、実施例４は、ｐＨ１０のアルカリ電解水を用いた）
【００４３】
【発明の効果】
上記のように、本発明のウェットワイパー用シートは、清掃面が繊度６〜５０ｄｔ、繊維長２〜７ｍｍの熱接着性合成繊維からなる、かつ、エアレイド法により製造された目付８〜５０ｇ／ｍ^２の不織布で構成されており、さらに、下記で表される繊維末端指数（ＳＩ値）が１５，０００〜１５０，０００である。
ＳＩ値＝Ｓ×Ｄ^２
ここで、Ｓ＝Ａ×９０００×２／（Ｄ×Ｌ×１０）
ただし、Ｓ：繊維末端数（ケ／ｃｍ^２）
Ａ：目付（ｇ／ｍ^２）
Ｄ：繊度（ｄｔ）
Ｌ：繊維長（ｍｍ）
【００４４】
その結果、シート構成繊維がシート面に対して垂直方向に配向され、シート面にブラシ状の繊維末端が多数形成されることから、繊維末端による毛髪保持力や、汚れの掻き落とし能力が発現し、従来品ではキャッチしにくかったヒトやペットの毛髪も良く保持することができる上，油汚れも効果的に掻き落とすことが可能になった。ウエットワイパーとして使用する場合、水系洗浄液の含浸性も良好であり、ドライワイパーとして使用する場合は床面などの水性汚れの吸収性にも優れており、しかも濡れても強いなど、実用上の特性に大きな特徴を有する。なお、従来品と同様に微細なチリ、ゴミなどを捕捉できることはいうまでもない。
【図面の簡単な説明】
【図１】本発明に係る掃除用シートの平面図である。
【図２】本発明に係る掃除用シートの拡大断面図である。
【図３】性能試験における試料装着方向を示す説明図である。
【符号の説明】
１０ 掃除用シート
１１ 表層部不織布層
１２ 内層部不織布層[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cleaning sheet used in a dry or wet state, and more particularly to a disposable cleaning sheet used for business or household use.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a disposable cleaning sheet, there is a dry or wet nonwoven fabric or a nonwoven fabric provided with hot embossing (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP-A-10-286206 (Claims)
[0004]
Since these cleaning sheets have a large amount of hydrophilic cellulose fibers in the surface layer, they not only lack wet strength, but also cause a large amount of fiber to drop off, and the surface layer is too dense to remove dust such as hair and lint. Insufficient for capture.
Furthermore, water-soluble stains can be cleaned by a wet type impregnated with a chemical solution, but the cleaning ability of oily stains such as sebum is insufficient.
[0005]
[Problems to be solved by the invention]
An object of the present invention is to provide a cleaning sheet that can cope with hair and greasy stains that have been insufficiently wiped with such a conventional cleaning sheet, and that is strong even when wet.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a surface layer having a basis weight of 6 to 50 g / m ² manufactured by an airlaid method, in which a cleaning surface is formed of a thermoadhesive synthetic fiber having a fineness of 6 to 50 dt and a fiber length of 2 to 8 mm. A cleaning sheet comprising a nonwoven fabric, wherein the nonwoven fabric has a fiber end index (SI value) of 18,000 to 180,000 expressed as follows.
SI value = S × D ²
Here, S = A × 9000 × 2 / (D × L × 10)
Where S: number of fiber ends (q / cm ² )
A: Weight (g / m ² )
D: Fineness (dt)
L: Fiber length (mm)
[0007]
Further, the present invention provides a heat-bondable synthetic fiber and a hydrophilic fiber which are mixed with each other, and the heat-bondable synthetic fiber and the heat-bondable synthetic fiber and the hydrophilic fiber are heat-bonded with a basis weight of 10 to 200 g / m2. on both sides of the ^second inner layer nonwoven layer, made of heat-adhesive synthetic fiber, and the heat-adhesive synthetic fibers to each other is thermal bonding, are formed by superimposed and surface nonwoven layer to form a cleaning surface, these 2. The cleaning sheet according to claim 1, wherein the nonwoven fabric layer is integrated by thermal bonding and has a water absorption of 6 to 25 g / g as a whole.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0009]
FIG. 1 is a plan view of a cleaning sheet according to the present invention. In FIG. 1, reference numeral 10 denotes a cleaning sheet manufactured by the airlaid method. As shown in FIG. 2, the cleaning sheet 10 includes surface nonwoven fabric layers 11 and 11 and an inner nonwoven fabric layer 12, and these nonwoven fabric layers 11 and 12 are integrated by thermal bonding.
[0010]
When the cleaning sheet 10 is manufactured by the airlaid method of the present invention, the constituent fibers constituting the nonwoven fabric layers 11 and 12 are easily oriented in a direction perpendicular to the sheet surface. Since a large number of fine brush-like fiber ends are formed, the ability to scrape off dirt from the fiber ends is developed, and it is possible to effectively clean hair and oily stains that were insufficient with conventional products. It becomes possible.
[0011]
This cleaning sheet 10 is manufactured by the following method. That is, first, only the heat-adhesive synthetic fibers are conveyed while being uniformly dispersed in the air stream, blown out from the screen having the pores provided in the discharge section, and deposited on a metal or plastic net placed below the surface layer. Form a non-woven fabric layer, and then have a pore provided in the discharge section by transporting a mixture of a thermoadhesive synthetic fiber and a hydrophilic fiber such as pulp fiber while uniformly dispersing it in an air stream in the same manner. It blows out from a screen, and is deposited as an inner nonwoven fabric layer on the surface nonwoven fabric layer deposited on a metal or plastic net placed below. Further, the cleaning sheet 10 is formed by depositing a surface layer nonwoven fabric layer composed of only the heat-adhesive synthetic fiber thereon again by the same method. The air flow is sucked by suction under the net. Thereafter, the joining points of the fibers are bonded by thermal bonding, and at the same time, the upper and lower surface nonwoven fabric layers 11 and the inner nonwoven fabric layer 12 are thermally bonded. Thereafter, the nonwoven fabric is impregnated with 150 to 350% by weight of water to which various surfactants, fungicides, antibacterial agents, alcohols, and the like are added, and is used as a wet wiper. An adhesive is applied and used as a dry wiper.
Especially when alkaline electrolyzed water is used as a wet wiper, it can be expected to improve the cleaning effect on floor dirt without using the power of a synthetic surfactant. The effect is eliminated, which is particularly preferable.
[0012]
The nonwoven fabric manufactured by this method is suitable as a cleaning sheet because the fibers are randomly and three-dimensionally oriented in the longitudinal direction, the width direction, and the thickness direction. When used in a dry state, it has sufficient water absorption so that dirty water on the floor can be cleaned neatly, and even if it is impregnated with water etc. in advance and used as a wet wiper, it retains sufficient moisture be able to. Further, since the uniformity is good, there is little variation in performance as a cleaning sheet. If necessary, a calendar process or an embossing process can be further performed.
[0013]
The cleaning sheet of the present invention is preferably formed by the airlaid method described above, but may be a nonwoven fabric having air permeability or a composite with a net formed by another manufacturing method. In that case, another nonwoven fabric or net can be placed on a metal or plastic net, and the nonwoven fabric layer of the present invention can be formed thereon by an airlaid method.
[0014]
The inner nonwoven fabric layer 12 needs to be a mixture of a heat-bondable synthetic fiber and a hydrophilic fiber. The heat-adhesive fibers are necessary for thermal adhesion to the surface nonwoven fabric layer serving as a cleaning surface, and for bonding and fixing hydrophilic fibers. In the case of a dry type wiper, the hydrophilic fibers are water-based present on the floor surface. It plays a role in absorbing dirt, and in the case of a wet wiper, it is necessary for holding a cleaning water-based chemical.
Examples of the hydrophilic fiber include pulp, rayon, and vinylon, and a mixture thereof may be used. In particular, pulp is preferred in terms of performance and cost. The inner nonwoven fabric layer 12 may contain a superabsorbent polymer or a superabsorbent fiber as necessary. The surface layer nonwoven fabric layer that forms the cleaning surface is on the front and back, so it is possible to suppress the falling off of hydrophilic fibers such as pulp in the inner layer, to suppress re-contamination due to the water stain absorbed by the dry wiper, In the case of a wiper, not only is the abrupt outflow of the cleaning water-based chemical stored in the inner layer part suppressed, but also the front and back sides can be used, which is efficient.
[0015]
In the cleaning sheet 10, the surface nonwoven fabric layer 11 forming the cleaning surface has a fiber end index (SI value = S × D ² ) represented by 18,000 to 180,000, more preferably 20,000. 000 to 150,000, more preferably 23,000 to 140,000.
[0016]
Here, the number of fiber ends per unit area (S) is calculated by the following equation.
S = A × 9,000 × 2 / (D × L × 10)
Where S: number of fiber ends (q / cm ² )
A: Weight (g / m ² )
D: Fineness (dt)
L: Fiber length (mm)
[0017]
When the fiber end index (SI value) is less than 18,000, the fibers are too fine and the fibers are soft, making it difficult to entangle hair or greasy stains with the fiber ends. Mean that the hair and greasy stains are still insufficiently captured. On the other hand, when the SI value exceeds 180,000, the fineness is too large to capture fine dust sufficiently, or even if the fineness is too large, the number of fiber ends is too large and the interfiber space is small, and hair and the like are not obtained. In which there is less room to enter.
[0018]
In other words, since the sheet constituent fibers are oriented in the direction perpendicular to the sheet surface, and a large number of brush-like fiber ends are formed on the sheet surface, the effect of holding hair and the like by the fiber ends is exhibited and the scraping ability is improved. It is possible to effectively scrape off oil stains which have been developed and have been insufficiently cleaned with conventional products.
[0019]
As the heat-adhesive synthetic fiber, any fiber may be used as long as it is a fiber that is melted by heat and bonded to each other. The pulp fibers are fixed by the network structure by the inter-fiber bonding, and examples thereof include polyolefins, polyesters, and polyvinyl alcohol.
[0020]
Among them, the core-sheath type or eccentric side-by-side type conjugate fiber is suitable as the polyolefin-based heat-adhesive synthetic fiber. Examples of the polyolefin constituting the sheath and the outer periphery of the fiber include polyethylene and polypropylene. As the polymer constituting the core component or the fiber inner layer portion, a polymer having a higher melting point than the sheath and not changing at the temperature of the heat bonding treatment is preferable, and examples thereof include polypropylene and polyester. In particular, in the case of polyester, the use of recycled PET bottles is more suitable as a recycling-related product.
[0021]
Examples of such a combination of polymers include polyethylene / polypropylene, polyethylene / polyester, and polypropylene / polyester. These polymers may be modified as long as they do not impair the action and effect of the present invention, and may be grafted with a fiber using a polymer having a high affinity for pulp fiber as a sheath component, for example, an unsaturated carboxylic acid. Polyolefins and the like are particularly preferred. Furthermore, fibril-like fibers may be used. For example, SWP of Mitsui Chemicals, Inc. and the like can be mentioned.
[0022]
The fineness of the heat-adhesive synthetic fiber used for the surface nonwoven fabric forming the cleaning surface is preferably 6 to 50 dt. Particularly, 8 to 30 dt is preferable. If the thickness of the fiber exceeds 50 dt, it is not preferable because the pulp fibers cannot be prevented from falling off. On the other hand, if it is less than 6 dt, the fibers are too fine and the fibers are soft, the space between the fibers is small, and there is little room for hair or the like to enter, making it difficult to entangle hair or oily dirt at the fiber ends. In the case of 6 dt or more, the slipperiness particularly with the cleaning surface increases, so that there is a large practical effect that the cleaning operation can be performed smoothly.
[0023]
The fiber length of the heat-adhesive synthetic fiber is preferably 2 to 8 mm. If the fiber length is less than 2 mm, the fiber length approaches powder, making it difficult to form a network structure due to inter-fiber bonding, not only preventing the pulp fibers from falling off, but also lowering the strength as a nonwoven fabric. On the other hand, if it exceeds 8 mm, the strength of the nonwoven fabric is increased, but the fibers tend to become entangled during pneumatic transportation during the production of the nonwoven fabric, which increases the fiber mass, which is not preferable. Particularly preferred is 3-5 mm.
[0024]
In the surface layer nonwoven fabric layer 11, in addition to the heat-adhesive synthetic fibers, recycled fibers such as rayon, semi-synthetic fibers such as acetate, synthetic fibers such as polyester, polypropylene, polyamide, and vinylon, or pulp, cotton, hemp, and the like. Other fibers such as natural fibers may be included.
[0025]
In this case, the ratio of the heat-adhesive synthetic fibers in the surface nonwoven fabric layer 11 is preferably 95 to 100% by weight. If the content is less than 95% by weight, the network structure due to the inter-fiber bonding between the heat-adhesive synthetic fibers becomes insufficient, and it becomes difficult to prevent the other fibers from falling off. On the other hand, when the content is 95% by weight or more, the fall of the wet strength is small with the prevention of the fiber falling off. In the case of a wet wiper, the wet strength is an important factor because it is impregnated with a cleaning water-based chemical in advance, and in the case of a dry wiper, it is practically preferable that the strength decrease when absorbing water-based stains is small. In any case, the loss of fiber is ineligible as a wiper.
[0026]
The heat-adhesive synthetic fibers forming the surface layer nonwoven fabric layer 11 are heat-bonded, and the pulp fibers are fixed in a network structure by bonding between the heat-adhesive synthetic fibers. The basis weight is preferably more than 5 g / m ² and up to 50 g / m ² . When the amount is 5 g / m ² or less, the amount of the heat-resistant synthetic fiber having water resistance and the number of bonding points between the fibers are small, so that not only a sufficient wet strength cannot be ensured, but also the number of dropped fibers tends to increase. On the other hand, when it exceeds 50 g / m ² , the water-resistant heat-bonding layer becomes too thick, and the water absorption becomes insufficient. More preferably, it is 8 to 40 g / m ² .
[0027]
The inner layer nonwoven fabric layer 12 is formed by integrating heat-bondable synthetic fibers and pulp fibers by heat bonding. As the heat-adhesive synthetic fiber, the same fiber as that of the surface nonwoven fabric layer 11 or a different fiber may be used. Further, as the pulp fiber, a pulverized pulp of 0.2 to 5 mm is preferable.
[0028]
The mixing ratio of the heat-adhesive synthetic fiber and the pulp fiber of the inner layer nonwoven fabric layer 12 is less than 20% by weight based on the total of the heat-adhesive synthetic fiber and the pulp fiber. And strength, especially when wet, decreases. On the other hand, if it exceeds 60% by weight, the amount of pulp fibers contributing to the absorbency will decrease and the absorbency will be lacking.
[0029]
In the inner layer nonwoven fabric layer 12, the heat-adhesive synthetic fibers, and the heat-adhesive synthetic fibers and the pulp fibers are heat-bonded. The basis weight of the inner nonwoven fabric layer 12 is preferably 10 to ²⁰⁰ g / m ² . If it is less than 10 g / m ² , the amount of pulp is too small and the water absorption is insufficient, while if it is more than 200 g / m ² , the rigidity increases and the whole becomes plate-like, and the handleability is poor. More preferably, it is 15 to 150 g / m ² .
[0030]
In addition, as a whole, the nonwoven fabric layer 11 and the inner nonwoven fabric layer 12 are integrated by the heat bonding of the heat-bondable synthetic fibers to form a multilayer structure.
[0031]
In this airlaid nonwoven fabric, the ratio of strength between warp and weft needs to be 0.8 to 1.2, more preferably 0.85 to 1.2, both when dry and when wet. If either one of the strengths is low, practical problems will occur.
[0032]
Further, the ratio (W / D) of the strength at dry (D) to the strength at wet (W) is preferably 0.6 to 1.1, and more preferably 0.7 to 1.1. If it is less than 0.6, the wet strength will be significantly lower than the dry strength. It is a nonwoven fabric that becomes weak when wet, deviates from the intended place, and causes problems in practical use. Also, when wet, the strength increases due to the surface tension between the fibers due to the presence of moisture, and the numerical value may exceed 1. However, the value does not exceed 1.1 unless another means is present.
[0033]
This air-laid nonwoven fabric needs to have an appropriate water absorbability, and the water absorbability is preferably from 6 to 25 g / g, more preferably from 8 to 22 g / g. If it is less than 6 g / g, the water retention property is lacking, and if it is more than 25 g / g, the amount of water to be retained is too large and there is a problem in handleability. The basis weight of the entire air-laid nonwoven fabric is 30 to 300 g / m ² . Preferably 40~250g / ^{m 2,} more preferably 45~200g / ^{m 2.} If the basis weight is less than 30 g / m ² , not only is the cleaning sheet lacking in strength and handleability, but also the cleaning effect cannot be sufficiently expected. On the other hand, if it exceeds 300 g / m ² , it becomes plate-like and not only lacks in handleability but also increases cost.
[0034]
When used in a wet wiper, the chemical component to be impregnated in advance is water as a main component, and further various surfactants, fungicides, antibacterial agents, deodorants, fragrances, waxes, cleaning agents, Lubricants, alcohol, and the like can be appropriately set as necessary. Cathode water obtained by adding a small amount of a water-soluble ionizable inorganic substance to raw water and electrolyzing it is known to exhibit alkalinity and has a cleaning action, but if this is impregnated beforehand, Since the effect of improving the cleaning effect on the floor surface can be expected without using the power of the synthetic surfactant, the effect on the global environment and humans is eliminated, which is particularly preferable. The alkaline electrolyzed water is obtained by adding a small amount of a water-soluble ionizable inorganic substance, for example, sodium hydrogen carbonate, sodium bicarbonate, or the like to raw water and electrolyzing the water, and has a hydrogen ion index (pH) of 8 to 11. Is preferred. If it is less than 8, the cleaning power is lacking, whereas if it exceeds 11, undesirably adverse effects occur on human skin and objects to be cleaned. Particularly preferred is 9-10.
[0035]
This cleaning sheet may be used by attaching it to a cleaning tool, or may be used directly by hand.
[0036]
【Example】
Hereinafter, the present invention will be described more specifically with reference to examples, but the present invention is not limited to these examples.
In the examples, parts and% are based on weight unless otherwise specified.
[0037]
Examples 1 to 4, Comparative Examples 1 to 4, Conventional Examples Among the present invention, in particular, the cleaning sheet (the present invention 1 to 4) as a wet wiper, the comparative example and the conventional example (commercially available), The comparison is shown in Table 1.
[0038]
(1) Performance test method (1) After mounting the sample on the wiper head of the slip resistance tester, slide the table while applying a load with a weight on the wiper head. Then, the force applied to the wiper head when the table slides is measured with a strain gauge, and the maximum value is defined as a slip resistance value (N). The test was performed five times, and the average value of the maximum values was expressed. The load was tested at 400 g and 1 kg. In each of the examples, the sliding resistance value is low, indicating that the cleaning operation can be performed easily.
・ Table moving speed: 75mm / sec
・ Table slide distance: 750mm / sec
・ Mounting direction of sample to wiper head (see Fig. 3)
・ The load applied to the wiper head includes the weight of the wiper head (the weight of the wiper head used in the test is 400 g)
[0039]
{Circle around (2)} Ten hairs having a length of about 10 cm are placed on a slide table of a hair holding performance test apparatus, and a wiper head (load: 400 g) on which a sample is mounted is placed thereon, and then the slide table is slid. After sliding once, the wiper head is removed, and the number of hairs held in the sample is counted, and the hair holding power (book / 10 hairs) is determined. Each test was performed three times and expressed as the average value.
The table moving speed, the table sliding distance, and the direction of mounting the sample on the wiper head are the same as those in the first embodiment.
It can be seen that all the examples have excellent hair holding power.
[0040]
{Circle around (3)} Oil and fat dirt removal properties Heat and melt commercially available cooking beef tallow, drop 5 drops (the top of the letter W) on a glass plate, and leave at room temperature for about 1 hour to solidify. The glass plate is attached to a test apparatus, and the table is slid while a load (1 kg) is applied to the wiper on which the sample is mounted.
The table moving speed, the table sliding distance, and the direction of setting the sample on the wiper head are the same as those in the first embodiment.
The display of the result is as follows.
：: Almost all of the tallow was removed.
△ to 牛: Tallow remained partially, but almost completely removed.
Δ: Even in the portion where the tallow was removed, a thin film remained, and the tallow remained in a part.
Δ to ×: There is a part from which beef tallow has been removed.
×: Almost no removal.
[0041]
[Table 1]

[0042]
<Note> Composition of impregnating liquid: water / ethyl alcohol = 90/10 wt% (However, in Example 4, alkaline electrolyzed water of pH 10 was used)
[0043]
【The invention's effect】
As described above, the sheet for a wet wiper of the present invention has a cleaning surface made of a thermoadhesive synthetic fiber having a fineness of 6 to 50 dt and a fiber length of 2 to 7 mm, and has a basis weight of 8 to 50 g / m manufactured by an air laid method. ² and a fiber end index (SI value) shown below of 15,000 to 150,000.
SI value = S × D ²
Here, S = A × 9000 × 2 / (D × L × 10)
Where S: number of fiber ends (q / cm ² )
A: Weight (g / m ² )
D: Fineness (dt)
L: Fiber length (mm)
[0044]
As a result, the sheet constituent fibers are oriented in the direction perpendicular to the sheet surface, and a large number of brush-like fiber ends are formed on the sheet surface. In addition, the hair of humans and pets, which were difficult to catch with conventional products, can be held well, and oil stains can be effectively scraped off. When used as a wet wiper, it has good impregnation with water-based cleaning liquid, and when used as a dry wiper, it has excellent absorbability for water-based stains such as floors, and has strong practical properties such as being strong even when wet. It has great features. Needless to say, fine dust, dust and the like can be captured similarly to the conventional product.
[Brief description of the drawings]
FIG. 1 is a plan view of a cleaning sheet according to the present invention.
FIG. 2 is an enlarged sectional view of a cleaning sheet according to the present invention.
FIG. 3 is an explanatory diagram showing a sample mounting direction in a performance test.
[Explanation of symbols]
Reference Signs List 10 Cleaning sheet 11 Surface layer nonwoven layer 12 Inner layer nonwoven layer

Claims (3)

Cleaning surface fineness 6～50Dt, a thermally adhesive synthetic fiber having a fiber length of 2 to 8 mm, made from the surface layer portion nonwoven having a basis weight 6~50g / ^{m 2} produced by an air-laid method, further, in the nonwoven fabric, by the following A cleaning sheet having a fiber end index (SI value) of 18,000 to 180,000.
SI value = S × D ²
Here, S = A × 9,000 × 2 / (D × L × 10)
Where S: number of fiber ends (q / cm ² )
A: Weight (g / m ² )
D: Fineness (dt)
L: Fiber length (mm) A heat-bondable synthetic fiber and a hydrophilic fiber are mixed, and the heat-bondable synthetic fiber and the inner layer nonwoven fabric layer having a basis weight of 10 to 200 g / m ² , which are heat-bonded to each other. On both surfaces of the nonwoven fabric layer, a surface nonwoven fabric layer forming a cleaning surface, which is made of a heat-bondable synthetic fiber, and the heat-bondable synthetic fiber is heat-bonded to each other, is formed. The cleaning sheet according to claim 1, wherein the cleaning sheet is integrated by bonding and has a water absorbency of 6 to 25 g / g as a whole. The cleaning sheet according to claim 1 or 2, wherein the cleaning aqueous liquid is preliminarily impregnated with alkaline electrolyzed water.

Images