JP3152189U - Non-woven fabric for disinfecting cotton - Google Patents

Abstract

Disclosed is a non-woven fabric for disinfecting cotton that retains an appropriate thickness when impregnated with a disinfecting solution, and that prevents fibers from dropping off. A non-woven fabric for disinfecting cotton that is impregnated with a disinfecting solution such as Japanese Pharmacopoeia alcohol to be used as disinfecting cotton, comprising a polyester composite fiber having three-dimensional steric crimps and a cellulosic fiber. And it is preferable that the cellulosic fiber which consists of a spunlace nonwoven fabric formed by integrating the constituent fibers by intertangling each other is a cotton fiber. [Selection] Figure 1

Description

  The present invention relates to a disinfecting cotton nonwoven fabric used for disinfecting skin.

  Conventionally, absorbent cotton impregnated with an antiseptic solution such as alcohol has been used to sterilize and disinfect the skin at the site of injection, for example. It is also used when sterilizing and disinfecting the site by wiping blood, pus or body fluids attached to the skin or mucous membrane. The reason why absorbent cotton is used is that it is highly water-absorbent and easily absorbs and retains a chemical solution, that it is soft to the touch, and that it is made of cotton fibers that are natural fibers, so that it is gentle to the human body. In addition, recently, not only absorbent cotton, but also non-woven fabric and other base materials impregnated with a disinfectant have been used. Place a predetermined number of layers of disinfectant cotton impregnated with disinfectant solution in a plastic airtight container, open the lid of the airtight container during use, take out the required number of disinfectant cotton, and re-cover the lid. What was made to close is used (patent document 1).

  Examples of the nonwoven fabric used as such cut cotton include those in which cotton fibers are hydroentangled with each other. Since this nonwoven fabric is entangled with each other, there is an advantage that the fibers are difficult to fall off during wiping. However, since cotton fibers are closely entangled with each other, the thickness of the disinfecting cotton impregnated with the disinfecting solution becomes thin and inferior in bulk, and in use, several cut cottons are consumed at a time. Become.

JP 2003-285874 A

  An object of the present invention is to provide a non-woven fabric for disinfecting cotton that retains an appropriate thickness when impregnated with a disinfecting solution, and that prevents fibers from dropping off.

  In order to impart bulkiness to the disinfecting cotton, the present inventor prepared not only cotton fibers but also general-purpose polyester fibers as the non-woven fabric constituent fibers to create cut cotton. By mixing polyester fiber, it was possible to give bulkiness to the cut cotton when impregnated with the disinfectant solution, but the cut cotton was sufficiently impregnated with the disinfectant solution, but apparently contained the disinfectant solution. It has been found that there is a drawback that it appears not to be, ie it appears to be dry. Therefore, when the fibers to be mixed were examined, when a specific polyester fiber was used, it was possible to impart moderate bulkiness to the cut cotton when impregnated with the disinfecting liquid, and the impregnating ability of the disinfecting liquid was also apparent. It was found that it can be confirmed.

  The present invention is a non-woven fabric for disinfecting cotton that is impregnated with a disinfecting solution such as Japanese Pharmacopoeia alcohol and used as disinfecting cotton, comprising a polyester composite fiber having three-dimensional three-dimensional crimps and a cellulosic fiber. The gist of the nonwoven fabric for disinfecting cotton is a spunlace nonwoven fabric that is formed by integrating the constituent fibers together.

  Hereinafter, the present invention will be described in detail.

  The nonwoven fabric for disinfecting cotton of the present invention is used as disinfecting cotton by impregnating a disinfecting solution such as Japanese Pharmacopoeia alcohol such as ethanol and isopropanol having a specific concentration.

  The nonwoven fabric for disinfectant cotton uses polyester-based composite fibers having three-dimensional three-dimensional crimps and cellulose-based fibers as constituent fibers.

  Examples of cellulosic fibers used in the present invention include cotton fibers, rayon, lyocell, etc., but it is preferable to use cotton fibers.

  The polyester based composite fiber used in the present invention has a three-dimensional steric crimp. Here, the three-dimensional three-dimensional crimp is a so-called three-dimensional coil spring-shaped crimp, which is a mode different from the two-dimensional mechanical crimp provided by an indentation crimper or the like. Further, a form in which twist is added to a part of the coil spring-like crimp may be used. As the crimp characteristics of the polyester composite fiber, it is preferable that the number of crimps measured by the method prescribed in JIS L1015 is 10 to 15 pieces / 25 mm, and the crimp rate is 13 to 15%. The polyester-based composite fiber having three-dimensional steric crimps can be entangled well with the cotton fibers and the degree of entanglement does not become too tight, and the resulting nonwoven fabric can retain bulkiness. Moreover, although the reason is not certain, it can be easily discriminate | determined visually by holding | maintaining disinfecting liquid fully, when disinfecting liquid is hold | maintained. As such polyester-based composite fibers having three-dimensional steric crimps, two types of polyester polymers having different viscosities are eccentrically joined and subjected to relaxation heat treatment, so that three-dimensional As a material that can be obtained on the market, brand <38F> manufactured by Unitika Fiber is preferably used.

  The polyester composite fiber contained in the nonwoven fabric is at most 40% by mass. When the mass of the polyester composite fiber exceeds 40% by mass, the liquid retention of the disinfectant solution in the disinfecting cotton is inferior. On the other hand, in order to achieve the effect of the present invention, the nonwoven fabric contains at least 10% by mass, preferably 20% by mass or more of polyester-based composite fiber.

  Although the fiber length of the constituent fiber used for this invention is not specifically limited, It is good to use a short fiber about 20-70 mm.

  The non-woven fabric in the present invention is a spunlace non-woven fabric formed by integrating constituent fibers by interlacing with each other. Spunlaced non-woven fabrics are those in which constituent fibers are entangled with each other by the action of a high-pressure liquid flow, and the shape is maintained as a non-woven fabric. Bonds between fibers are adhesive, thermal bonding, and thermocompression bonding. Therefore, the touch is good and the fibers are less likely to fall off due to friction.

The basis weight of the nonwoven fabric in the present invention is not particularly limited, but is preferably about 100 to 200 g / m ² in consideration of the amount of disinfectant retained by the cut cotton cut into an appropriate size.

  The non-woven fabric for disinfection of the present invention is cut into an appropriate size to obtain cut cotton, and this cut cotton is impregnated with a disinfectant such as Japanese Pharmacopoeia alcohol and used as disinfecting cotton. The size of the sanitizing cotton is generally 3 cm to 5 cm square for both vertical and horizontal. The amount of the disinfecting liquid to be impregnated is preferably 400% or more with respect to the mass of the nonwoven fabric. As shown in FIG. 1, the obtained disinfectant cotton is stacked in units of several tens of sheets and accommodated in an appropriately sized container. The container preferably has a lid attached so that the container can be substantially sealed when not in use.

  The nonwoven fabric for disinfecting cotton of the present invention is composed of a spunlace nonwoven fabric in which cellulosic fibers and polyester composite fibers having three-dimensional steric crimps are entangled with each other, so impregnated with a disinfecting solution In this case, the disinfectant can be sufficiently retained, and the bulkiness and thickness are retained even in the retained state, and the handleability is good.

It is a schematic side view which shows an example of the state in which the disinfecting cotton which concerns on this invention was accommodated.

  Hereinafter, although this invention is demonstrated based on an Example, this invention is not limited to an Example.

Example 1
Polyester-based composite fiber with three-dimensional three-dimensional crimps with 12 crimps / 25 mm crimp and 14% crimp (fineness 3.3 dtex, fiber length 51 mm, brand name <38F> manufactured by Unitika Fiber Co., Ltd.) (Composite short fiber bonded with polymerized polyester) and cotton fiber (fineness 1.7 decitex, average fiber length 25 mm) are prepared, and the ratio of polyester composite fiber / cotton fiber is 30/70% by mass. And then fed to a card machine to obtain a card web having a basis weight of 120 g / m ² . The obtained card web is placed on a movable mesh support made of a 100 mesh plastic woven fabric, and a high pressure water jet apparatus in which nozzle holes with a nozzle hole diameter of 0.14 mm are arranged at regular intervals of 0.5 mm. After processing once at a pressure of 2.8 MPa and once at a pressure of 4.2 MPa, the web is inverted, and once again at a pressure of 2.8 MPa and once at a pressure of 4.2 MPa. Thus, a spunlace nonwoven fabric in which the constituent fibers were entangled in three dimensions was obtained.

Reference example 1
As the spun lace nonwoven fabric of Reference Example 1, one having a basis weight of 150 g / m ² consisting of only cotton fibers (product number C150SA07 manufactured by Unitika Ltd.) was used.

Comparative Example 1
In place of the polyester-based composite fiber used in Example 1, a fiber made of polyethylene terephthalate to which a two-dimensional mechanical crimp with a crimp number of 13.4 pieces / 25 mm and a crimp ratio of 14.8% was imparted (fineness) A spunlace nonwoven fabric was obtained in the same manner as in Example 1 except that 1.45 dtex, fiber length 51 mm, fiber cross-sectional shape was circular, and unitica fiber product number <120> was used.

Comparative Example 2
A fiber made of polyethylene terephthalate to which a two-dimensional mechanical crimp with a crimp number of 11.5 pieces / 25 mm and a crimp number ratio of 11.2% was applied instead of the polyester-based composite fiber used in Example 1 ( A spunlace nonwoven fabric was used in the same manner as in Example 1 except that an ellipse having a fineness of 1.7 dtex, a fiber length of 51 mm, a fiber cross-sectional shape of 3.8, and a unit number <F330> manufactured by Unitika Fiber Co., Ltd. was used. Obtained.

  About the obtained spunlace nonwoven fabric of Example 1, Reference Example 1, and Comparative Examples 1 and 2, 50 cut cottons each cut to 4 cm × 4 cm were prepared, and the basis weight of the cut cotton was determined. The evaluation method is as follows.

Weight per unit area (g / m ² ): 50 sample pieces of 4 cm × 4 cm were prepared, the mass of each sample piece was weighed, and the average value obtained was converted to a unit weight per unit area (g / m ² ).

[Evaluation of disinfected cotton]
50 pieces of cut cotton of 4 cm square are laminated in a beaker in a non-load state, and 525 parts by mass of disinfectant (Japanese Pharmacopoeia disinfectant ethanol) is added above the sample piece to 100 parts by mass of 50 sample pieces. The sample was put into a beaker, the sample piece was impregnated with the disinfectant, the beaker was sealed, and left for 24 hours.
The sanitized cotton after being left for 24 hours was visually evaluated for the thickness (μm), the mass (g), and the state of impregnation with the disinfecting solution. The bulk density (g / cc) was calculated from the obtained thickness and the basis weight, and the disinfection liquid impregnation rate (%) was calculated from the mass of the disinfecting cotton and the basis weight of the sample piece in consideration of the specific gravity of the disinfecting liquid. The evaluation method of the thickness and impregnation state is as follows.

Thickness (μm): Based on JIS L 1906: ²⁰⁰⁰ , using a thickness measuring instrument (manufactured by Daiei Kagaku Seisakusho Co., Ltd.), the load is 2 kPa, the thickness of each sample piece is measured, and the average value is the thickness of disinfecting cotton (μm) ).

Disinfection state of disinfecting solution: The impregnation state of the disinfecting solution was visually observed on 50 sample pieces (samples 1 to 50) and evaluated in the following four stages.
◯: Both the front and back of the sample piece have a wet feeling in every appearance.
Δ: It seems that there is a part that does not contain the disinfectant in a part of the sample piece.
X: In the sample piece, it seems that most of the portions that do not appear to contain the disinfectant are occupied.

  Table 1 shows the evaluation results of the obtained disinfected cotton, and Table 2 shows the results of visual observation of the impregnated state.

As is clear from Table 1, the disinfecting cotton of the present invention was superior in bulkiness as compared with the disinfecting cotton (Reference Example 1) consisting only of conventional cotton fibers. In addition, the disinfectant was sufficiently impregnated and retained. Further, as is apparent from Table 2, the disinfecting cotton of Example 1 could be discriminated as being sufficiently impregnated with the disinfecting solution.

Claims (3)

  Non-woven fabric for disinfecting cotton impregnated with disinfecting liquid such as Japanese Pharmacopoeia Alcohol, comprising polyester composite fiber having three-dimensional steric crimp and cellulosic fiber, and constituting fiber A nonwoven fabric for disinfecting cotton, which is a spunlace nonwoven fabric that is integrated by interlacing each other.   2. The nonwoven fabric for disinfectant cotton according to claim 1, wherein the cellulosic fibers are cotton fibers. A disinfecting cotton, wherein the disinfecting cotton nonwoven fabric according to claim 1 or 2 is impregnated with 400 mass% or more of a disinfecting liquid such as Japanese Pharmacopoeia alcohol with respect to the mass of the nonwoven fabric.