KR100580859B1 - Fabric for cleaning wiper - Google Patents

Abstract

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiper forge for clean cleaners with low dust removal and excellent collection and absorption. In particular, the wiper forge used to clean the dirt and liquid crystal display of a clean room in the semiconductor and liquid crystal industries. The technical composition of the fabric is woven from microfiber and ultrafine fibres having a single yarn fineness of 0.05-2.0 denier as yarn, and it contains contents of contaminants such as spinning oil, hydrophilic material and conductive material that substantially discharge fine dust. Not more than 0.1% by weight, and pre-treatment and refining process using distilled pure water of reverse osmosis method, so that the particle size of 0.5㎛ or more is processed so that the dust particles fall to 10 /ft3.100cm2 or less Provides wiper forge for cleaner.

Description

Cleaner wiper forge {Fabric for cleaning wiper}             

    The present invention relates to a wiper forge for a cleaner cleaner to clean the surface contamination of the object, in particular in the semiconductor and liquid crystal industry, as a wiper forge used to clean the contamination of the clean room and the LCD screen, dust removal during use Greatly reduce the amount of impurities, minimize the amount of wiper traces that occur when the organic solvent, acetone and alcohol, is wetted and then wipe the area cleanly, and maximize the collection of dust particles. It relates to a wiper forged.

Conventionally, a wiper paper for removing surface contaminants of various lenses or optical devices, such as woven fabrics, knitted fabrics, and non-woven fabrics, using a composite split yarn such as polyester or nylon, or a single yarn fineness of 0.1 to 0.2 denier thickness Although it has been used, in order to clean the screen surface of various electronic devices such as liquid crystal screens, not only the highly contaminant removal function but also the fine dust falling from the wiper itself should be suppressed to the maximum. Since the substance and the spinning oil dissolve in the mixed solution of acetone and alcohol, which are organic solvents, there is a drawback that the wiper marks remain on the surface without being cleaned after wiping.

Therefore, there is a limit to using paper or nonwoven fabric as a wiper in a clean environment where minimization of oscillation is required. Recently, a fabric made of a combination of a single yarn fine fiber of 1.0 denier microfiber and 0.2 denier microfiber has been proposed for wiper, but in this case, the wiper feels hard and glass substrate. The wiping material is too slippery and lacks the ability to collect dust, which does not significantly improve the cleaning effect. In general, in the case of knitted paper rather than woven paper, since the inherent elasticity is large, when the wiper is manufactured, the edge of the forge is cut by hot knife, ultrasonic wave, laser, etc., and when washed with water, the shape of the cut part is easily deformed. .

The present invention naturally minimizes the amount of dust generated in accordance with a clean environment, and naturally occurs because hydrophilic substances, conductive materials or spinning emulsions, which cause self dust when cleaning contaminated areas, are dissolved by a mixed solvent of acetone and alcohol. By minimizing the wiper marks generated and giving proper after feeling and bulkiness to prevent the paper from slipping from the surface of the object, the paper is washed with distilled pure water in reverse osmosis to obtain a wiper with improved workability. Clean wiper forge with minimal oscillation and contaminant content is obtained.

The wiper forge of the present invention has a high density bulkiness from ultrafine fibers having a single yarn fineness of 0.05-0.2 denier or microfiber filament yarn having 1.0-2.0 denier. Fine fabrics are prepared and refined and pretreated using reverse osmosis distilled pure water so that the contents of hydrophilic material, conductive material and spinning emulsion which substantially discharge dust do not exceed 0.1% by weight relative to the total forge weight. By removing the dust, dust particles having a particle size of 0.5 μm or more falling off the wiper when wiping should not exceed 10 / ft3.100 cm 2. Thus, the wiper for clean cleaner of the present invention can be obtained by cutting the edge of the obtained fabric paper and minimizing the shape deformation by ultrapure water washing.

The material constituting the wiper forge of the present invention is a synthetic fiber ultrafine yarn (single yarn fineness 0.05-0.2 denier) and microfine fiber (single yarn fineness 1.0-2.0 denier) such as polyester and nylon, each of which is used as a 100% single material You may use it, and even mixing with each other. In particular, in order to prevent slippage and improve the collection property, the use of a high shrinkage yarn may also be actively used. In the use of high shrink yarns, synthetic fibers are preferred because the difference in non-aqueous shrinkage ratio can be at least 10-15%, which can have excellent bulkiness.

In the present invention, the wiper forge may be fabric or knitted fabric. However, in the case of the fabric, the amount of dust generated by the fabric itself is small, and in the case of the knitted fabric, the wiper forge has excellent bulkiness and collectability.

When wiping the contaminated object, the wiper of the present invention should not drop more than 10 particles / ft3.100cm2 of the particle size whose particle size is larger than 0.5 μm, and if finer cleanliness is required, the diameter of the dust particle is Dropout of particles below 0.3 μm should be avoided. In this case, if there is a hydrophilic material or a conductive material that can cause dust to fall out of the particles to be dissolved in the mixed solvent of alcohol and acetone, the wiping traces appear on the object surface during wiping.

In the case of the wiper forge of the present invention, in general dyeing processing or flexible processing, a hydrophilic processing agent such as a polyalkylene glycol compound, a water-soluble polyester resin, a cationic antistatic agent, an antistatic resin or a carbon powder, etc. are used. Since the processing agents are all processing agents that cause dust and contamination, their use is strictly restricted, and the prepared forge is 0.1% by weight of the hydrophilic material or conductive material using reverse osmosis distilled pure water in the refining and pretreatment processes. It should be washed with water sufficiently to

Therefore, the characteristics of the present invention is characterized by minimizing the self oscillation by using the reverse osmosis distilled water, the content of the hydrophilic material and the conductive material in the forge does not exceed 0.1% by weight of the total weight.

In addition, according to Japanese Industrial Standard JIS B-9923 "Light Scattering Particle Counting Method", 10 particles / ft3. Of dust particles having a particle diameter of 0.5 μm or more falling off the wiper fore when wiping contaminated objects are wiped out. It is 100 cm2 or less, and the wiper has a high collection capacity to dust, and quickly absorbs a mixed solvent of acetone and alcohol (within 1 second), and its absorption is also relatively large, 2-3 times the weight of the wiper.

In general, the less contaminants removed from the wiper forge, the less dissolved in the mixture of acetone and alcohol, the less traces of the wiper appear on the substrate after wiping.

In order to satisfy such performance, the forge itself must be rich in bulkiness and have a high packing density in which dust particles are collected. In addition, it is important to minimize the foreign matter contained in the wiper forge and the dust particles that are dropped off when wiping. Therefore, it is preferable to seal-cut the edge of the wiper forge with hot knife, ultrasonic waves or laser. In addition, the form of the wiper forge is less deformable, it is effective to remove the contaminated particles easily by ultra pure water washing after decontamination.

Examples of the yarn used for the wiper forge of the present invention include (1) a single yarn fineness composite yarn of polyester or nylon (DTY) of 0.05-0.2 denier. (2) Polyester DTY company of single yarn fineness 1.0-2.0 denier. (3) single yarn fineness 0.05 Denier-type polyester islands-in-the-sea elution yarn (DTY) can be mentioned, and these filament yarns can be used alone or in combination to produce a double knit changing tissue in a knitting machine, or weaving high-density textile paper as a loom. Then, distilled pure water is used for refining and post-processing in a reverse osmosis method to dissolve the sea component in a conventional caustic soda to elute it into ultra-fine islands, or to separate the two-component interface of polyester and nylon. Particularly, in the case of general polyester, the process removes hydrophilic substances that cause dust during spinning, and actively removes unremoved substances in the refining process by using reverse osmosis distilled pure water and drugs. After cutting the edge of the wiper, it is necessary to set the condition that almost no deformation occurs by ultrapure water washing.

The wiper forge of the present invention has an excellent effect and performance as a wiper forge for clean clean rooms because the amount of dust particles is extremely small and the collection and absorption are excellent. In particular, the electronic information materials, liquid crystal LCD, and semiconductor industries can be widely spotlighted.

The performance evaluation method for the wiper forge for clean cleaners was made by first cutting the edge of the wiper forge, washing with ultrapure water, and vacuum-packing it.

The evaluation of the degree of oscillation was evaluated by Japanese Industrial Standard JIS-B9923 (Shaking Method), and the absorbency was measured by JIS-B1096, and the absorption capacity was immersed in distilled water for 2 minutes, and then the sample was taken out and left in a drying stand for 1 minute. After the weight increase rate was measured and evaluated.

The collecting property is to drop a silicon oil onto a glass plate of about 5mg with a needle, and place a sample of about 0.2-0.4mm in thickness on a cross section subjected to a circular load of 45 mm in diameter and 1 kg in weight. After removing the silicon at the speed, the toner for dry copier was applied and scattered with compressed air (1㎏ / ㎠) to evaluate the remaining state on the glass surface. To judge)

Also, after wiping as a mixed solvent of acetone and alcohol, the degree of traces remaining on the substrate was visually determined, and the residual ratio was determined by using a mixed solution of acetone and ethanol (6: 4) in the same weight sample of the wiper forge. The evaluation was performed based on the ratio of the initial weight to the weight of the component extracted by the Soxhlet method. Other cutability, touch, and shape deformation after washing were evaluated by sensory evaluation as "good", "normal", and "bad".

Hereinafter, the present invention will be described in detail with reference to Examples.

Example 1

Using a general polyester bulky DTY yarn (75d / 36f) as a yarn, a double-knit memory tissue was knitted as a circular knitting machine to obtain a wiper cloth. The batch was sufficiently shrunk in a distilled pure water treated with reverse osmosis under a condition of pH 5.5-6.0 at 130 ° C for 20 minutes, and then reverse osmosis with a pH of 5.5-6.0.

Washed with the treated distilled pure water solution, and sufficiently washed forge was heat-treated at 180 ° C. for 1 minute at a width of 60-62 inches in a tenter while maintaining 0-2% overfeed. At this time, the weight of the forge was 160 g / m 2 and the width 18% and the length 5% of the paper were reduced. The obtained forge was cut into 9 inches long and 9 inches long and subjected to edge sealing to obtain a wiper for cleaning cleaner.

Using the mixed solvent of acetone and ethyl alcohol (6: 4), the wiper forge was measured by the Soxhlet method to determine the residual ratios of contaminating particles and spinning oils. It was confirmed that the residual ratio of contaminated particles contained in forge was 0.1% or less.

Comparative Example 1

Washing and pretreatment were performed by conventional methods using soft water for polyester double knit memory tissue knitted in the same manner as in Example 1 to obtain a wiper forg, and compared with the forge of Example 1 The results are shown in Table 1.

Example 2

A double knit memory structure was knitted as a knitting machine using polyester islands-in-sea type DTY-eluted yarn (70d / 36f, 8 split, PET / sea component 70:30) as a yarn. The dough was maintained at 80 ° C. for 20 minutes in a batch manner to remove contaminants with distilled pure water and caustic dilution solution of pH 5.5-6.0. After dissolving the sea component with distilled pure water, caustic soda solution and emulsion dispersion treated with reverse osmosis method of pH 5.5-6.0 for 20 minutes at 130 ° C, after shrinking sufficiently, it is again treated with reverse osmosis method of PH 5.5-6.0 Washed with distilled pure water, and then heat-treated for 1 minute to a width of 58-60 inches in a tenter with 0-2% overfeed. The weight of the forge thus obtained was 240 g / m 2, which was reduced by 20% in the width direction and 5% in the length direction with respect to the dough. The resulting pores were edge-sealed in 9 inch and 9 inch lengths, and the residual ratios of contaminating particles and spinning oils that caused dust by Soxhlet method were measured using a mixture of acetone and ethanol (6: 4). It was confirmed that dust particles having a particle diameter of 0.5 μm or more were six and the residual ratio of contaminated particles contained in the paper was 0.1% or less. In addition, as a comparative example, using a polyester yarn, the fabric dough cut into the same structure as described above using a softened water, washed with water and pre-processed by a conventional method to obtain a wiper forge, and the results of the comparative evaluation Table 1 is as follows.

Example 3

Using a polyester DTY yarn (100d / 36f, 37 splitting, PET / sea component 70:30) as a yarn, the dough of the wiper forge, organized in a double-knit memory structure, was kept in a batch method for 20 minutes at 80 ° C. Distilled pure water and caustic dilution solution with -6.0 reverse osmosis method were used to wash and remove contaminants from the distilled pure water, caustic soda solution and emulsion dispersion treated with reverse osmosis method with pH 5.5-6.0 for 20 minutes at 130 ° C. After dissolving the sea component and shrinking it sufficiently, it was washed with a distilled pure water solution treated with a reverse osmosis method of PH5.5-6.0, and heat-treated at 180 ° C. for 1 minute with a width of 58-60 inches in a tenter while overfeeding. The weight of the obtained fabric was 240 g / m 2, and 20% in the width direction and 5% in the longitudinal direction were reduced with respect to the dough.

The pores obtained in this way are edge-sealed in 9 inch and 9 inch lengths, and the residual ratios of contaminating particles and radioactive oil that cause dust by Soxhlet method using a mixed solution of acetone and ethanol (6: 4). The measurement confirmed that the content was 0.1 wt% or less. In addition, as a comparative example, the same fabric was treated with a conventional method using softened water, and this was compared and evaluated.

Example 4

Fabric continuous paper was obtained using polyester FY yarn (75d / 36f) as the warp yarn and polyester / nylon composite yarn (150d / 72f, 9 split type) as the weft yarn, and normal continuous pretreatment was performed in the caustic soda solution diluted with the fabric dough. Process, and again maintained by batch method for 20 minutes at 80 ℃, the reverse osmosis method of pH 5.5-6.0 distilled pure water, caustic soda dilution solution, emulsified dispersion to remove contaminants and PH 5.5- for 40 minutes at 130 ℃ A high-density forge fabric was prepared by dispersing and contracting the interface of the polyester / nylon composite yarn constituting the weft yarn with a distilled pure water solution, a caustic soda solution and an emulsion dispersion liquid treated with a reverse osmosis method of 6.0.

The cloth support stage was washed with a distilled pure water solution treated with a reverse osmosis method of pH 5.5-6.0, and heat-treated in a tenter with 53-55 inch, 180 ° C. in a width direction for 30 seconds while overfeeding.

At this time, the weight of the obtained fabric was 105 g / m 2 and the width of the dough was reduced by 15% in the width direction and 8% in the longitudinal direction. The forge thus obtained is sealed by 14.5 inches in width and measured using a mixed solution of acetone and ethanol (6: 4) to measure the residual ratio of contaminating particles and spinning oil causing dust by Soxhlet method. It confirmed that it is 0.1 weight% or less. In addition, the comparative example was evaluated by comparing the same fabric by using the softening water in the conventional method.
Comparative Example 2-4
Comparative Examples 2 to 4 were each washed with water and pre-treated by conventional methods using soft water to form polyester double knit memory tissues knitted in the same manner as in Examples 2 to 4, respectively. Obtained and compared with the forge of Examples 2 to 4, respectively, the results are shown in Table 1.

Table 1

As can be seen from the above examples and comparative examples, the wiper forge of the present invention processed with reverse osmosis distilled pure water has a residual ratio, oscillation property, absorbency, after wiping, compared to a product processed with conventional soft water. The present invention is a novel invention with inventive progress as it can be seen that the traces, touch, and deformation suppression of the shape of the edge part after washing are remarkably improved.

Claims (5)

Single yarn fineness 0.05-2.0 denier polyester microfiber or ultramicrofiber was batch-reduced in reverse osmosis distilled pure water under pH 5.5-6.0 and then distilled pure water treated with reverse osmosis pH 5.5-6.0 After washing with liquid and sufficiently washed forge, heat-treated in a tenter while maintaining 0-2% overfeed, and the microfiber or ultrafine yarn is hydrophilic such as a polyalkylene glycol compound or a water-soluble polyester resin in dyeing or casting. By eliminating the use of processing agents, cationic antistatic agents, antistatic resins or carbon powders, the amount of contaminants that discharge fine dust does not exceed 0.1% by weight based on the weight of the paper, Method of producing a wiper forge for clean cleaner, characterized in that less than 10 / ft ³ . delete delete delete According to claim 1, wherein the microfiber yarn or microfiber yarn in a alkaline solution woven by using single or mixed polyester microfiber of single yarn fineness of 0.05-0.2 denier and synthetic fiber microfiber of nylon and single yarn fineness of 1.0-2.0 denier A method for producing a clean cleaner wiper forge, comprising dissolving a sea component.