JP2021074208A - Stain removal fiber product - Google Patents

Abstract

To provide a stain removal fiber product capable of demonstrating superior stain removing effect.SOLUTION: In a stain removal fiber product, a cleaning surface is brought into contact with a target surface in order to remove stains from the target surface to which stains are stuck. The cleaning surface is composed of a large number of fiber surfaces. Abrasive nanoparticles are attached to the fiber surfaces, and the fiber surfaces attached with abrasive nanoparticles are provided with a friction coefficient of 0.4-0.8 relative to the surface of a melamine coated smooth plate or of a smooth glass plate.SELECTED DRAWING: None

Description

The present invention relates to a textile product for removing stains, which removes stains from the target surface by bringing the cleaning surface into contact with the target surface to which dirt is attached.

The dirt removing cloth shown in Patent Document 1 is excellent because it removes dirt from the target surface without damaging the target surface by wiping the target surface to which dirt is attached with a cleaning surface. It can exert the effect of removing dirt.

Japanese Unexamined Patent Publication No. 2008-564

However, the market is demanding textile products for removing stains, which are not limited to cloths and can exhibit even more excellent stain removing effects.

An object of the present invention is to provide a textile product for removing stains, which can exhibit a more excellent effect of removing stains.

The present invention relates to a textile product for removing stains, which removes stains from the target surface by bringing the cleaning surface into contact with the target surface to which dirt is attached.
The cleaning surface is composed of a large number of fiber surfaces.
Abrasive nanoparticles are attached to the surface of the fiber.
The surface of the fiber to which the polishing nanoparticles are attached has a friction coefficient of 0.4 to 0.8 with respect to the smooth target surface.
It is characterized by that.

According to the stain removing textile product of the present invention, the stain removing effect can be dramatically improved.

[First Embodiment]
The textile product of this embodiment is a cloth.

(Cross composition)
The dirt removing cloth of the present embodiment has the following configurations (a) and (b).

<Structure (a)>
A cloth having a plain weave structure. Both the front and back sides of this cloth are used as cleaning surfaces. This cloth is made by making a twisted yarn using a single fiber and plain weaving the twisted yarn. Specifically, for example, it is as follows.
・ Single fiber ・ Material ‥ Cotton ・ Thickness 590 decitex ・ 80 times down twist ・ Plying ・ Two single fibers twisted 100 times / m up ・ Thickness ‥ 1180 decitex ・ Plain weave ・ Density of 20 each in length and width

<Structure (b)>
Both the front and back surfaces of the cloth of the configuration (a) have a friction coefficient of 0.4 to 0.8 with respect to the surface of the melamine-coated smooth plate or the smooth glass plate by nano-surface treatment.
-Nano-surface treatment is specifically performed by immersing the cloth in a colloidal solution containing abrasive nanoparticles and then drying, whereby the abrasive nanoparticles constitute the cleaning surface of the cloth. It adheres to the surface of the fibers.
・ Nanoparticles for polishing ・ Silicon oxide (SiO ₂ ) particles ・ Particle size: 12 nm
-The cloth of the configuration (a) is _{immersed in a SiO 2} aqueous solution (solid content 20%) at 60 ° C. for 30 minutes (immersion step) and then weakly dehydrated so that the solid content becomes 0.5 to 13 owf%. Then, it was dried at 90 ° C. for 40 minutes (drying step).

As the polishing nanoparticles, calcium carbonate (CaCO ₃ ) particles, magnesium carbonate (MgCO ₃ ) particles, or aluminum hydroxide (Al (OH) ₃ ) particles may be used.

As described above, in the cloth of the present embodiment, nanoparticles for polishing are attached to the surfaces of the fibers constituting both the front and back surfaces, that is, the cleaning surface, and the surface of the fibers is a melamine-coated smooth plate or a smooth glass plate. It has a coefficient of friction of 0.4 to 0.8 with respect to the surface.

(Measurement method of coefficient of friction)
The coefficient of friction was measured according to JIS-K7125, and the value of the coefficient of dynamic friction was adopted. Specifically, it is as follows.
-As a sliding piece, use an aluminum smooth plate measuring 63 mm x 63 mm and a thickness of 1 mm, prepare a test piece that is a cloth of the same size, attach the test piece to the aluminum smooth plate, and place it on the melamine-coated smooth plate. A load of 10 kg was applied and the measurement was performed at a test speed of 1000 mm / min.

(Dirt removal effect)
The cloths of Examples 1 to 3 having a friction coefficient of 0.4, 0.6, 0.8 and the cloths of Comparative Examples 1 and 2 having a friction coefficient of 0.3, 1.0 were prepared, and each of them was prepared. The cloth was subjected to a wiping test on a dirt sample to measure the dirt removal effect.

<Preparation of cloth>
Cloths having different friction coefficients such as Examples 1 to 3 and Comparative Examples 1 and 2 were prepared by adjusting the solid content of the polishing nanoparticles in the colloidal solution.

<Preparation of dirt sample>
The dirt component is attached to the surface (target surface) of the melamine-coated smooth plate and fixed at 60 ° C. for 30 minutes. Then, this work is repeated 5 times. This was used as a dirty sample. Two types of stain components, component A and component B, were used.
・ Ingredient A: Stain made of soy sauce and carbon ・ Ingredient B: Stain made of black crayon

<Dirt removal (wiping) test>
Two cloths with a size of 22 cm x 13 cm were prepared. These cloths were wetted with water to adjust the moisture content to 60 owf%. Then, using two cloths in layers, the dirt sample was wiped back and forth three times.

<Measurement of effect>
^{The L *} a ^* b ^* values of the following (i) to (iii) were measured by a color meter. Then, the seek Delta] E ^* 0 is the difference between (ii) and (i), was determined Delta] E ^* which is the difference between (iii) and (i).
(I) Surface of melamine-coated smooth plate before attaching stain components (ii) Surface of melamine-coated smooth plate with stain components attached (iii) Surface of melamine-coated smooth plate that has been wiped off

<Measurement result>
The results shown in Table 1 were obtained.

Regarding the wiping workability, "○" indicates "normal", "Δ" indicates "somewhat resistant", and "x" indicates "difficult to move".

<Consideration of results>
According to Table 1, the cloths of Examples 1 to 3 have good "dirt removing effect" and "wiping workability", but the cloth of Comparative Example 1 has poor "dirt removing effect", and Comparative Example 2 It is "difficult to wipe" with the cloth.
In Comparative Example 1, even if the cloth is strongly pressed, it is slippery, so that the force is not easily transmitted to the target surface, and therefore it is considered that the effect of scraping off dirt is low.
In Comparative Example 2, since the wiping resistance is strong, the frictional force between the hand and the cloth exceeds the frictional force between the target surface and the cloth, and the cloth cannot be pressed and moved. This is because in general wiping work, the contact area between the hand and the cloth is always smaller than the contact area between the target surface and the cloth, so when the friction coefficient becomes large, the cloth tends to come off from the hand. As a result, the cleaning efficiency is considered to be poor.

<Effect of cloth of this embodiment>
According to the cloth of the present embodiment in which the coefficient of friction of the cleaning surface is 0.4 to 0.8 with respect to the surface (target surface) of the melamine-coated smooth plate or the smooth glass plate, a small force is applied to the target surface efficiently. Can be transmitted, so that the dirt removing effect on the dirt adhering to the target surface can be dramatically improved.

The cloth of the present embodiment can remove both oily stains and water-based stains, and can also remove solidified stains and high-viscosity stains. Moreover, since the fiber surface of the cloth of the present embodiment is hydrophilic, it can be suitably used without impairing the effect of absorbing dirt containing water.

[Second Embodiment]
The textile product of this embodiment is a mop.

(Mop composition)
The stain removing mop of the present embodiment is produced by producing twisted yarn or pile using single fibers, nano-surface treating the surface of the pile, and planting the nano-surface-treated pile on canvas. .. Specifically, for example, it is as follows.
・ Single fiber ・ Material ‥ Cotton ・ Thickness ‥ 590 decitex ・ 80 times lower twist ・ Plyed yarn (pile)
・ 10 single fibers twisted 120 times / m upward ・ Thickness: 1180 decitex

-Nano-surface treatment-Performed by immersing the pile in a colloidal solution containing abrasive nanoparticles and then drying, which causes the abrasive nanoparticles to adhere to the surface of the pile.
・ Nanoparticles for polishing ・ Silicon oxide (SiO ₂ ) particles ・ Particle size: 12 nm
-Specifically, the pile is _{immersed in a SiO 2} aqueous solution (solid content 20%) at 60 ° C. for 30 minutes (immersion step) and then weakly dehydrated so that the solid content becomes 0.5 to 13 owf%. Then, it was dried at 90 ° C. for 40 minutes (drying step).

As the polishing nanoparticles, calcium carbonate (CaCO ₃ ) particles, magnesium carbonate (MgCO ₃ ) particles, or aluminum hydroxide (Al (OH) ₃ ) particles may be used.

-Canvas-Polyester plain weave cloth-Planting-Pile was planted on ^{200 g / m 2 of polyester plain weave cloth, which is a canvas.} The number of piles was 3 for the width direction of the canvas of 25.4 mm and 4 for the length direction of the canvas of 25.4 mm. The length of the pile was 50 mm.

As described above, in the mop of the present embodiment, nanoparticles for polishing are attached to the surface of the pile constituting the cleaning surface, and the surface of the pile is the surface of a melamine-coated smooth plate or a smooth glass plate (target). It has a coefficient of friction of 0.4 to 0.8 with respect to the surface).

(Measurement method of coefficient of friction)
By treating the cleaning surface of the mop composed of the surface of the pile in the same manner as the cloth, the friction coefficient of the cleaning surface of the mop was measured in the same manner as in the first embodiment.

(Dirt removal effect)
The mops of Examples 4 to 6 having a friction coefficient of 0.4, 0.6, 0.8 and the mops of Comparative Examples 3 and 4 having a friction coefficient of 0.3, 1.0 were prepared, and each of them was prepared. The mop was subjected to a stain removal test on a stain sample to measure the stain removal effect.

<Preparation of mop>
The mops having different friction coefficients such as Examples 4 to 6 and Comparative Examples 3 and 4 were prepared by adjusting the solid content of the polishing nanoparticles in the colloidal solution.

<Preparation of dirt sample>
This was done in the same manner as in the first embodiment.

<Dirt removal test>
A mop having a cleaning surface having a size of 22 cm × 13 cm was prepared. The mop was wetted with water and then dehydrated for 5 minutes. Then, the cleaning surface of the mop was brought into contact with the dirty sample and reciprocated three times.

<Measurement of effect>
This was done in the same manner as in the first embodiment.

<Measurement result>
The results shown in Table 2 were obtained.

Regarding cleaning workability, "○" indicates "normal" and "x" indicates "difficult to move". In particular, in Comparative Example 3, not only the dirt removing effect was low, but also the removed dirt was easily separated from the cleaning surface of the mop. In Comparative Example 4, the dirt removing effect was high, but it was difficult to move because the piles were entangled.

The mop of the present embodiment can also exert the same effect as the cloth of the first embodiment.

[Third Embodiment]
The textile product of this embodiment is a mat.

(Mat composition)
In the stain removing mat of the present embodiment, a twisted yarn, that is, a pile is produced using a single fiber, the surface of the pile is nano-surface-treated, and the nano-surface-treated pile is tufted on a base cloth of a mat base material. It has been made. Specifically, for example, it is as follows.
・ Single fiber ・ Material: Nylon 66
・ Thickness: 1320 decitex ・ 180 times lower twist ・ Plyed yarn (pile)
・ Two single fibers twisted 180 times / m upward ・ Thickness: 2640 decitex

-Nano-surface treatment-Performed by immersing the pile in a colloidal solution containing abrasive nanoparticles and then drying, which causes the abrasive nanoparticles to adhere to the surface of the pile.
・ Nanoparticles for polishing ・ Silicon oxide (SiO ₂ ) particles ・ Particle size: 12 nm
-Specifically, the pile is _{immersed in a SiO 2} aqueous solution (solid content 20%) at 60 ° C. for 30 minutes (immersion step) and then weakly dehydrated so that the solid content becomes 0.5 to 13 owf%. Then, it was dried at 90 ° C. for 40 minutes (drying step).

As the polishing nanoparticles, calcium carbonate (CaCO ₃ ) particles, magnesium carbonate (MgCO ₃ ) particles, or aluminum hydroxide (Al (OH) ₃ ) particles may be used.

-Base cloth-Polyester plain weave cloth-Tuft-Pile was tufted on ^{120 g / m 2 of polyester plain weave cloth, which is the base cloth.} The number of piles was 8 for 25.4 mm in the width direction of the base cloth and 8 for 25.4 mm in the length direction of the base cloth. The length of the pile was 10 mm.

As described above, in the mat of the present embodiment, nanoparticles for polishing are attached to the surface of the pile constituting the cleaning surface, and the surface of the pile is the surface of the melamine-coated smooth plate or the smooth glass plate (target). It has a coefficient of friction of 0.4 to 0.8 with respect to the surface).

(Measurement method of coefficient of friction)
By treating the cleaning surface of the mat, which is composed of the surface of the pile, in the same manner as the cloth, the friction coefficient of the cleaning surface of the mat was measured in the same manner as in the first embodiment.

(Dirt removal effect)
The mats of Examples 7 to 9 having a friction coefficient of 0.4, 0.6, 0.8 and the mats of Comparative Examples 5 and 6 having a friction coefficient of 0.3, 1.0 were prepared, and each of them was prepared. The mat was subjected to a stain removal test on a stain sample to measure the stain removal effect.

<Preparation of mat>
Mattes having different friction coefficients such as Examples 7 to 9 and Comparative Examples 5 and 6 were prepared by adjusting the solid content of the polishing nanoparticles in the colloidal solution.

<Preparation of dirt sample>
This was done in the same manner as in the first embodiment.

<Dirt removal test>
A mat having a cleaning surface having a size of 22 cm × 13 cm was prepared. The mat was wetted with water and then dehydrated for 5 minutes. Then, the dirt sample was pressed against the cleaning surface of the mat three times.

<Measurement of effect>
This was done in the same manner as in the first embodiment.

<Measurement result>
The results shown in Table 3 were obtained.

Regarding cleaning workability, "○" indicates "normal" and "x" indicates "difficult to move". In particular, in Comparative Example 5, not only the dirt removing effect was low, but also the removed dirt was easily separated from the cleaning surface of the mat. In Comparative Example 6, although the dirt removing effect was high, the pile on the cleaning surface was entangled and easily became a compressed state, so that the morphological change was large, and as a result, the performance such as water retention performance was deteriorated.

The mat of the present embodiment can also exert the same effect as the cloth of the first embodiment.

[Another Embodiment]
(1) In the first embodiment, it is preferable that the content ratio of the alkali metal component in the colloidal solution is controlled to 500 ppm or less. This is because alkali metal components such as sodium and potassium become water-soluble when they adhere to and solidify the fibers, which promotes the adhesion of abrasive nanoparticles from the fibers, resulting in the result. This is because the friction coefficient is lowered. That is, if the amount of the alkali metal component is too large, the coefficient of friction is lowered and the dirt removing effect is lowered.

<Specific example>
_{The cloth of configuration (a) is immersed in a SiO 2} aqueous solution (solid content 20%, particle size 12 nm) containing 500 ppm of an alkali metal component at 60 ° C. for 30 minutes and then weakly dehydrated to have a solid content of 6 owf%. Then, it was dried at 90 ° C. for 40 minutes. The cloth thus produced was placed in a household washing machine, and the washing operation at 40 ° C. for 10 minutes was repeated 5 times using a neutral detergent. Then, the friction coefficient of the cloth after cleaning was measured.
The same applies to the case where the alkali metal component is contained at 3000 ppm.
Table 4 shows the results.

As is clear from Table 4, when the content ratio of the alkali metal component was 500 ppm, the friction coefficient could be maintained even after repeated washing. That is, a cloth having excellent durability could be obtained.

The same applies to the second and third embodiments.

(2) In the first embodiment, the content ratio of the solid binder in the colloidal solution is preferably controlled to 20% or less of the content ratio of the abrasive nanoparticles. That is, when a solid binder is used, the adhesion of the abrasive nanoparticles to the fibers is increased, so that a cloth having excellent durability can be obtained. However, since the solid binder competes with the polishing nanoparticles on the fiber surface, the content of the polishing nanoparticles decreases as the content of the solid binder increases. Therefore, the content ratio of the solid binder is preferably 20% or less of the content ratio of the nanoparticles for polishing. As the solid binder, that is, the binder, for example, an acrylic ester emulsion, a urethane emulsion, or an NBR emulsion can be preferably used.

The same applies to the second and third embodiments.

(3) In the first embodiment, it is preferable that the cloth of the configuration (a) is treated with a primer (primer treatment step) before being treated in the dipping step. That is, when the cloth is treated with a primer, the adhesiveness between the fibers and the nanoparticles for polishing can be enhanced, and as a result, a cloth having excellent durability can be obtained.

As the primer to be used, a component having good affinity and adhesiveness to fibers and good affinity and adhesiveness to ^{polishing nanoparticles such as SiO 2 and} other inorganic salts is used. Such components function well as adhesive aids.

As the primer, a water-soluble component is preferable. This is because it is suitable for processing. However, even an oil-soluble component can be used because it can be adsorbed on the fiber by emulsification or the like. Further, the composition of the primer and the functional group are preferably selected according to the material of the fiber and the required durability of the target cloth.

<Specific example>
The cloth of composition (a) was immersed in an aqueous solution containing 3% of N-2- (aminoethyl) -3-aminopropyltrimethoxysilane as a primer, and then dried at 90 ° C. for 30 minutes. This was used as a primer treatment step. As a result, a cloth having excellent durability could be obtained.

The same applies to the second and third embodiments.

(4) In the first embodiment, it is preferable that the polishing nanoparticles have a particle size of 5 nm to 500 nm. This is because the particles having a diameter of 5 nm to 500 nm easily enter the unevenness of the surface of the fiber and are difficult to come out, so that the particles firmly adhere to the surface of the fiber. As a result, since the nanoparticles for polishing are hard to fall off from the fiber surface, the coefficient of friction can be maintained and a cloth having excellent durability can be obtained.

<Specific example>
The cloth of the configuration (a) is _{immersed in a SiO 2} aqueous solution (solid content 20%, particle size 5 nm) at 60 ° C. for 30 minutes and then weakly dehydrated so that the solid content becomes 0.5 to 13 owf%. Then, it was dried at 90 ° C. for 40 minutes.
The same _{applies to the case where a SiO 2} aqueous solution (solid content 20%, particle size 500 nm) is used.

In both cases, a durable cloth could be obtained.

The same applies to the second and third embodiments.

(5) The abrasive nanoparticles used in the present invention are preferably those that are water-soluble and have the property of precipitating on the fiber surface when dried. According to this, the nanoparticles for polishing can be attached at the particle size of the dissolution level, and as a result, the adhesion durability can be improved. Further, it is preferable that the nanoparticles for polishing have a property of not being easily dissolved in hot water after being precipitated on the fiber surface. This is because if it dissolves easily, its durability will decrease. _{Specifically, inorganic salts having a solubility (g / 100 gH 2} O) at 20 ° C. and 1 atm of 0.0006 to 0.05 are preferable. Therefore, examples of the inorganic salts that can be suitably used as the nanoparticles for polishing include silicon oxide (SiO ₂ ), calcium carbonate (CaCO ₃ ), magnesium carbonate (MgCO ₃ ), and aluminum hydroxide (Al (OH) ₃ ). be able to. Their solubilities are 0.012, 0.0006, 0.039, 0.0001, respectively.

(6) In the present invention, it is considered that the material of the fiber used has almost no effect on the stain removing effect. However, since durability is affected by the micro shape of the fiber surface, it is considered optimal to use cotton having a remarkable uneven shape. In addition, in the synthetic fiber, there is no big difference in the dirt removing effect except for the fiber having a deformed cross section, and for example, rayon, nylon, polyester, or acrylic can be preferably used.

(7) In the present invention, the form of the cloth is not limited to the plain weave structure, but may be a knitted structure. Further, the cleaning surface of the mop or mat may be composed of a cut pile or a loop pile.

(8) The "coefficient of friction of 0.4 to 0.8" in the present invention is for a smooth target surface to be removed from dirt, and the target surface is the surface of a melamine-coated smooth plate or a smooth glass plate. Not limited to.

Since the stain removing textile product of the present invention can dramatically improve the stain removing effect, it has great industrial utility value.

Claims (12)

In a textile product for removing stains, which removes stains from the target surface by bringing the cleaning surface into contact with the target surface to which dirt is attached.
The cleaning surface is composed of a large number of fiber surfaces.
Abrasive nanoparticles are attached to the surface of the fiber.
The surface of the fiber to which the polishing nanoparticles are attached has a friction coefficient of 0.4 to 0.8 with respect to the smooth target surface.
It is a textile product for removing stains. The smooth target surface is the surface of a melamine-coated smooth plate or a smooth glass plate.
The textile product for removing stains according to claim 1. The textile product is a cloth constructed by weaving or knitting the fibers.
The textile product for removing stains according to claim 1 or 2. The textile product is a mop having a pile constructed by twisting the fibers.
The textile product for removing stains according to claim 1 or 2. The textile product is a mat formed by tufting a pile formed by twisting the fibers onto a base cloth.
The textile product for removing stains according to claim 1 or 2. The material of the fiber is cotton, rayon, nylon, polyester, or acrylic.
The textile product for removing stains according to any one of claims 1 to 5. The polishing nanoparticles are silicon oxide (SiO ₂ ) particles, calcium carbonate (CaCO ₃ ) particles, magnesium carbonate (MgCO ₃ ) particles, or aluminum hydroxide (Al (OH) ₃ ) particles.
The textile product for removing stains according to any one of claims 1 to 6. The abrasive nanoparticles have a particle size of 5 nm to 500 nm.
The textile product for removing stains according to any one of claims 1 to 7. A method for producing a textile product for removing stains according to any one of claims 1 to 8.
A dipping step of immersing the surfaces of a large number of fibers constituting the cleaning surface in a colloidal solution containing the abrasive nanoparticles.
A drying step of drying the surface of the fiber taken out from the colloidal solution,
have,
A method for manufacturing a textile product for removing stains, which is characterized by the above. The content ratio of the alkali metal component in the colloidal solution is controlled to 500 ppm or less.
The method for producing a textile product for removing stains according to claim 9. The content ratio of the solid binder in the colloidal solution is controlled to 20% or less of the content ratio of the polishing nanoparticles.
The method for producing a textile product for removing stains according to claim 9 or 10. Prior to the dipping step, there is a primer treatment step of treating the cloth with a primer.
The method for producing a textile product for removing stains according to any one of claims 9 to 11.