RU216865U1 - Bleach boilable sanitary napkin - Google Patents

Abstract

The utility model relates to hygiene products, more precisely, to absorbent reusable products for protection against leakage, which can be used, for example, in sanitary and urological pads, inserts for nursing mothers' bras, baby panties, diapers for children and bedridden patients, etc. A distinctive feature is the possibility of repeated boiling with the preservation of functional properties, which leads to better disinfection and destruction of harmful bacteria. A sanitary napkin with the possibility of boiling with bleach, consisting of several layers sewn around the perimeter, while the layers are made in the following order: the inner layer adjacent to the skin is made of natural fabric, then 1-5 absorbent layers are made of highly absorbent fabric, then a waterproof absorbent layer is made of membrane fabric with the possibility of boiling with bleach, then the outer layer is made of natural fabric. EFFECT: creation of a sanitary napkin with the possibility of boiling with bleach while maintaining functional properties. 2 ill.

Description

The utility model relates to hygiene products, more precisely, to absorbent reusable products for protection against leakage, which can be used, for example, in sanitary and urological pads, inserts for nursing mothers' bras, baby panties, diapers for children and bedridden patients, etc. A distinctive feature is the possibility of repeated boiling with the preservation of functional properties, which leads to better disinfection and destruction of harmful bacteria.

From the studied state of the art, the applicant has identified a patent for the invention of the Russian Federation No. 2215508 "Absorbent product", the essence is an absorbent product, such as a diaper, a panty liner, an incontinence protector, a sanitary napkin, a dressing, and the like, containing a liquid-permeable covering a layer, a liquid-impervious backing layer and an absorbent body disposed therebetween, characterized in that the product comprises a layer of continuous fibers, the so-called tow, which are distributed in a layer bonded at points, along lines and in areas in a fiber bond pattern, and wherein the fibers are otherwise substantially unbonded to each other, the layer in the cross-sectional direction comprising at least two zones that differ in one or more properties such as bulk density, pore size, hydrophilicity/hydrophobicity and/or other absorption properties and/or properties affecting skin condition.

Known utility model RF No. 205751 "Reusable sanitary napkin", the essence is a reusable sanitary napkin fixed on the underwear and containing the outer layer of the liquid-impervious material facing the underwear, the inner layer facing the user's body, the absorbent layer and wings placed between them , located on the sides of the gasket, complementary parts of the fasteners are placed on the wings with the possibility of interaction, the layers and wings are connected by stitching along the perimeter, characterized in that the absorbent layer is made of flannel density from 170 g/m ² to 220 g/m ² rep weave with one-sided fleece facing the inner layer, the outer layer is made of polyester or cotton fibers laminated with thermoplastic polyurethane, the inner layer is made of cotton fabric of transverse single weaving with a density of 140 g/m ² to 200 g/m ² , the wings are made together with the outer and inner layers .

Known utility model of the Russian Federation No. 107687 "The item of functional clothing", the essence is the item of functional clothing, preferably for wearing in direct contact with human skin, the design of which is made in the form of cut elements of the base part, containing at least one panel, and, according to at least one area of increased absorbency, placed on at least one of the panels, characterized in that at least one area of increased absorbency is limited, at least on one side, by a layer of fabric of the base part and aligned with it through a single cut and fastening with a layer of composite material, and at least one layer of profiled physically modified fiber, while the layer of profiled physically modified fiber is placed on the layer of composite material. A functional garment according to claim 1, characterized in that, for example, a fabric laminated with a polyurethane membrane, including at least one fabric surface, preferably from natural fibers, and a surface from a porous polyurethane membrane, can be used as a composite material. The functional garment according to claim 1, characterized in that the fabric layer of the composite material can be made of cotton, linen or wool, polyester or a mixture of cotton and polyester. The item of functional clothing according to claim 1, characterized in that the fabric layer of the composite material can be made with antibacterial and/or anti-allergic impregnation. The item of functional clothing according to claim 1, characterized in that the cut elements of the base part can be made, for example, from natural fabrics with the addition of elastic fibers.

Invention No. KR 20220112690 (A) “Reusable pad, combined panties and reusable sanitary napkin” is known, the essence is a reusable sanitary napkin containing: an outer casing, including a base layer component that has an upper surface, and a top waterproof layer component that has a connecting a surface attached to said top surface of said base layer component, a skin-contacting surface opposite said bonding surface, and a through hole extending through said skin-contacting surface and said bonding surface; a first absorbent tissue component attached to said upper surface of said base layer component and aligned with said through hole; and a skin-contacting fabric component attached between said first absorbent fabric component and said connecting surface of said upper waterproof layer component and covering the underside of said through hole so that the boundary of said through hole is located on said skin-contacting fabric component.

Reusable pads are known [https://journal.tinkoff.ru/reusable-pads/?ysclid=l73h4lg2qq65537799], the essence is reusable pads consisting of several layers of fabric:

1. Cotton, flannel or linen - a layer adjacent to the skin.

2. Absorbent layer made of membrane flannel.

3. Another layer of fabric adjacent to the linen.

To avoid stains on pads, soak them in cold water for 30 minutes with a gentle stain remover before washing, then rinse until the water runs clear. After soaking, place all pads in a cotton bag and machine wash on a normal cycle at up to 60°C.

The disadvantage of all the known technical solutions described above is that the materials used as a waterproof absorbent layer should be washed at relatively low temperatures - up to 40-60°C, which leads to insufficient disinfection, in contrast to boiling.

The solution to the problem can be the use of materials that can be repeatedly boiled as a waterproof absorbent layer, for example, some types of membrane fabrics.

From the studied prior art, the applicant identified medical membrane fabrics with the possibility of washing at high temperatures.

So known is the medical membrane fabric with a polyurethane (hereinafter PU) coating RP 4071 Petrus115 g/m², manufactured by Sioen (Belgium)

[https://ttex.ru/catalog/membrannye_tkani/rp_4071_petrus_membrannaya_tkan_meditsinskaya_115_gr_m_sioen_belgiya/?oid=83856] (hereinafter referred to as RP 4071 Petrus). Durable, stretchy material with antibacterial and antifungal treatment. Base material - 100% polyester. The base of the knitted weave makes the material resistant to tearing. Waterproof PU coating does not absorb water and other liquids (blood, urine, oils, greases). The material is easily disinfected with the most common types of disinfectants. At the same time, it has antibacterial and antimicrobial effects, breathable properties, is resistant to chemical disinfectants, and is highly resistant to tearing and friction. It is possible to wash in any way at a temperature not exceeding 95 ° C without the use of bleaches, drying with cold air, cleaning with hydrocarbons, gasoline, ethylene chloride and monofluorotrichloromethane. Designed for baby sheets, blood sampling pads, diapers, medical curtains, screens.

Known medical membrane fabric MED200 [https://ttex.ru/catalog/vodonepronitsaemye_tkani_dlya_namatrasnikov/med200_membrannaya_meditsinskaya_tkan_ves_200_gr_m2_vinteks_turtsiya/#desc 200 g/m ² ], manufacturer Vinteks (Turkey) (hereinafter referred to as MED200). The medical membrane material belongs to the Vcare series - a specialized line of materials for medical applications. The materials of this series are treated with silver ions, which gives antibacterial, antiviral and antifungal properties, as well as resistance to the reproduction of Staphylococcus aureus. Advantages of MED170 medical membrane fabric: waterproof, breathable, wear resistant, chemical disinfectant resistant, tear resistant. It is possible to wash in any way at a temperature not exceeding 95 ° C without the use of bleaches, drying with cold air, cleaning with hydrocarbons, gasoline, ethylene chloride and monofluorotrichloromethane. It is intended for medical mattresses, upholstery of cosmetic and medical chairs, moisture-resistant overalls.

Known medical antibacterial fabric F9012 Okotex Light bielastix PU coated production concern Sioen (Belgium) [https://ttex.ru/catalog/vodonepronitsaemye_tkani_dlya_namatrasnikov/f9012_membrannyy_trikotazh_s_pu_pokrytiem_ves_120_gr_m2_sioen_/#props], density - 120 g/m). It consists of a knitted base (polyester 100%) and one-sided polyurethane coating. Due to the elastic backing, F9012 Okotex Light material is more resistant to tearing than woven materials, products made from this material are more comfortable. It has antibacterial and antimicrobial effects - special chemicals have been added to the composition of the polyurethane coating, it meets the antitoxic and environmental standards of Eco-Tex Class I and II standards. Biocompatibility according to German ISO 10993: level 0, no skin irritation. Breathable - breathability ±600 g/m ² /24 h, water resistance 2000 mm w.c. Art. - does not absorb water and other liquids (blood, urine, oils, lubricants), which makes the material ideal for creating modern anti-decubitus mattresses, is resistant to chemical disinfectants in the production of final products, the material is well sewn. It is possible to wash in any way at a temperature not exceeding 95 ° C without the use of bleaches, drying with cold air, cleaning with hydrocarbons, gasoline, ethylene chloride and monofluorotrichloromethane. Designed for mattress toppers for medical and anti-decubitus mattresses.

Known medical fabric antibacterial breathable MED 180, [https://ttex.ru/catalog/vodonepronitsaemye_tkani_dlya_namatrasnikov/med_180_meditsinskaya_tkan_antibakterialnaya_dyshashchaya_180_gr_m2_vinteks_turtsiya/?oid=81936#desc], density 180 g/m ² (Del 18, Turkey) Vinteks Belongs to the Vcare series - this is a specialized line of medical materials treated with silver ions, with antibacterial and antimicrobial properties, resistant to fungi and Staphylococcus aureus. Antibacterial and antimicrobial properties, resists fungi and Staphylococcus aureus, has breathable properties - air permeability 600-700 g / m ² / 24 h, water resistance - 2000 mm of water. Art., resistant to chemical disinfectants, has a high resistance to tearing and friction. It is possible to wash in any way at a temperature not exceeding 95 ° C without the use of bleaches, drying with cold air, cleaning with hydrocarbons, gasoline, ethylene chloride and monofluorotrichloromethane. It is intended for medical mattresses, upholstery of cosmetic and medical chairs, moisture-resistant overalls.

Known cotton membrane terry Muleton F9952 with PU coating [https://ttex.ru/catalog/vodonepronitsaemye_tkani_dlya_namatrasnikov/f9952_bravo_muleton_khlopkovaya_membrannaya_makhra_200_gr_m2_sioen/], density 200 g/m², with antibacterial and antifungal effect (hereinafter referred to as F995). On the front side, the waterproof terry is covered with soft fibers made of a mixture of cotton and polyester, thanks to which products made from this fabric are very pleasant to the touch. On the wrong side - a membrane breathable polyurethane coating, which provides absolute waterproofness, protecting the mattress from the penetration of moisture (water, urine and other liquids). The breathable properties of the membrane cotton terry allow you to remove excess moisture to the outside. It is possible to wash in any way at a temperature not exceeding 95 ° C without the use of bleaches, drying with cold air, cleaning with hydrocarbons, gasoline, ethylene chloride and monofluorotrichloromethane. Designed for sheets for hospitals, hotels, diapers, bibs.

Known membrane antibacterial fabric MED120 [https://ttex.ru/catalog/membrannye_tkani/med120_membrannaya_antibakterialnaya_tkan_120_gr_m2_vinteks_turtsiya/#desc], with a density of 120 g/m ² , Vinteks (Turkey). It belongs to the Vcare series - a specialized line of medical materials treated with silver ions, with antibacterial and antimicrobial properties, resistant to fungi and Staphylococcus aureus (hereinafter referred to as MED120). The polyurethane coating is waterproof and breathable. It is possible to wash in any way at a temperature not exceeding 95 ° C without the use of bleaches, drying with cold air, cleaning with hydrocarbons, gasoline, ethylene chloride and monofluorotrichloromethane. It is intended for medical mattresses, upholstery of cosmetic and medical chairs, moisture-resistant overalls.

Known cotton membrane terry waterproof TERRY MEMBRAN with a density of 160 g/m² with PU coating, treated with silver ions [https://ttex.ru/catalog/vodonepronitsaemye_tkani_dlya_namatrasnikov/terry_membran_160_makhra_s_pu_pokrytiem/?oid=81149] (hereinafter referred to as TERRY MEMBRAN). Membrane polyurethane coating on the reverse side provides absolute waterproofness and does not let moisture through. At the same time, the material has breathable properties - moisture is removed to the outside, no greenhouse effect is created, this ensures a long service life of products. Composition: cotton 68%, polyester 17%, polyurethane 15%. Breathability - breathability ± 500 g / m ² / 24 h, water resistance - 2000 mm of water. Art., tear resistance, wear resistance. It is possible to wash in any way at a temperature not exceeding 95 ° C without the use of bleaches, drying with cold air, cleaning with hydrocarbons, gasoline, ethylene chloride and monofluorotrichloromethane. It is intended for medical mattresses, upholstery of cosmetic and medical chairs, moisture-resistant overalls.

The use of membrane tissues during boiling by the applicant from the studied prior art has not been identified.

Known membrane fabrics are used by the applicant as a waterproof absorbent layer of the claimed product.

The technical result of the claimed technical solution is the development of a sanitary napkin with the possibility of boiling with bleach while maintaining functional properties.

The essence of the claimed technical solution is a sanitary napkin with the possibility of boiling with bleach, consisting of several layers sewn around the perimeter, while the layers are made in the following order: the inner layer adjacent to the skin is made of natural fabric; then 1-5 absorbent layers are made of well-absorbed fabric; further, a waterproof absorbent layer of membrane fabric is made with the possibility of boiling with bleach; further, the outer layer is made of natural fabric.

The claimed technical solution is illustrated in Fig.1, Fig.2.

Figure 1 shows the claimed product:

1a - before use;

1b - soiled with control liquid (tea brewing), before cleaning;

1c - prototype after contamination and washing 200 times for 1 hour, and further boiling 200 times for 20 minutes;

1g - control sample after contamination and washing 200 times for 1 hour, without boiling.

Figure 2 presents a table of special cases of the claimed product according to Examples 1-16.

Further, the applicant provides a description of the claimed technical solution.

From the studied state of the art, it has been revealed that known reusable products for protection against leakage can be washed at a temperature not exceeding 40-60°C, which does not allow achieving complete purification and getting rid of harmful microorganisms compared to boiling.

The applicant has developed a reusable product for protection against leakage with the possibility of boiling, while the claimed technical result is achieved by using a membrane fabric as a waterproof absorbent layer with the possibility of repeated boiling while maintaining functional properties.

The claimed product is a multilayer product connected along the perimeter by a seam.

The following is a list of layers:

- the inner layer adjacent to the skin is made of natural fabric, for example, cotton (cotton), linen (flax) (depending on the particular case of execution), serves for tactile comfort,

- further, 1-5 absorbent layers are made (depending on the particular case of execution) from a well-absorbed fabric, for example, flannel, cotton fabric, fleece (depending on the particular case of execution), serve to absorb liquid,

- further, a waterproof absorbent layer of membrane fabric is made with the possibility of boiling (the type of fabric depends on the particular case of execution), it serves to protect against leakage,

- further, the outer layer is made of natural fabric, for example, cotton, linen (depending on the particular case of execution), adjacent to the outer surface, for example, to linen, serves to protect the inside of the membrane fabric and for the aesthetic appearance of the product.

The combination of types of fabrics in different layers can be changed arbitrarily, depending on the particular case of execution.

The claimed product is manufactured as follows:

- the layers are laid on top of each other in the sequence listed above, while taking the necessary types of fabrics and the required number of layers from a well-absorbed fabric, depending on the particular case of execution,

- cut out the product according to a given shape, depending on the particular case of execution,

- the product is sewn, for example, on a standard sewing machine.

At the same time, the shape of the product is arbitrary, depends on the purpose and can be performed in various special cases, for example:

- in the form of sanitary pads,

- in the form of urological pads,

- in the form of inserts for bras for nursing mothers,

- in the form of children's panties,

- in the form of diapers for children and bedridden patients,

- and etc.

The number of absorbent layers of highly absorbent fabric (from 1 to 5 layers) depends on particular implementations, for example:

– one layer – for thin sanitary napkins, inserts for breastfeeding maternity bras, bibs, etc.,

- two layers - for children's panties, sanitary pads, diapers for children and bedridden patients, etc.,

- three layers - for sanitary napkins, diapers for children and bedridden patients, etc.,

- four layers - for sanitary pads, urological pads, postpartum pads, diapers, etc.,

- five layers - for sanitary napkins, urological pads, postpartum pads, diapers, etc.

The Applicant explains that in the descriptions and characteristics of the known membrane fabrics used by the Applicant, the manufacturers indicate that the care of products made of membrane fabric is allowed by washing in any way at a temperature not exceeding 95°C without the use of bleaches. However, the Applicant has empirically found that the claimed product, when repeatedly (at least 200 times) boiling with oxygen bleach, does not lose its waterproof and consumer properties (see Examples).

Thus, the applicant has shown the possibility of using known fabrics under the stated conditions, while achieving the claimed technical result.

Further, the applicant gives the characteristics of the materials used.

- for the inner and outer layers, natural fabrics are taken, for example, cotton (cotton), linen (flax), for example, produced by Ivanovo;

- for absorbent layers, well-absorbed fabrics are taken, for example, flannel, cotton, fleece, etc., for example, produced by Ivanovo;

- for a waterproof absorbent layer, membrane fabrics with the possibility of boiling are taken, for example, manufactured by Vinteks (Turkey), Sioen (Belgium), etc.

Further, the applicant provides examples of the implementation of the claimed technical solution.

Example 1. Manufacture and use of the claimed product in the form of a thin sanitary napkin.

Take fabrics and put them on top of each other:

- the inner layer is made of cotton fabric,

- then one absorbent layer of flannel is made,

- further, a waterproof absorbent layer is made of a medical membrane fabric with a polyurethane coating RP 4071 Petrus 115 g/m²,

- further, the outer layer is made of cotton fabric.

The product is cut out according to a given shape of a sanitary napkin, and sewn, for example, on a standard sewing machine (Fig. 1a).

The product is ultra-thin, without rustling effect.

To test industrial applicability, a contamination and purification procedure was carried out.

To do this, they took 2 pieces of the finished product and contaminated it with a control liquid, for example, tea leaves.

Next, the products were soaked in cold water, for example, for 30 minutes with washing powder, then washed in a machine, for example, at a temperature of 60°C, for example, for 1 hour with washing powder and oxygen bleach.

Then one product was left for control (control sample), and the second (experimental sample) was boiled, for example, for 20 minutes with oxygen bleach.

The procedure of soiling and washing the control sample, as well as soiling, washing and boiling the prototype was repeated 200 times.

The washing temperature, as well as the duration of soaking, washing and boiling, can be changed depending on the degree of contamination - according to visual observations.

The results are shown in Figure 1:

1a - photo of the product before use,

1b - photo of the product contaminated with the control liquid (tea brewing), before cleaning,

1c - photo of the prototype after contamination and washing 200 times for 1 hour, and further boiling 200 times for 20 minutes,

1d - photo of the control sample after contamination and washing 200 times for 1 hour, without boiling.

Figure 1 shows that before the first wash, the product is heavily soiled (1b).

After 200-fold contamination, washing and boiling, the product looks like a clean and usable product, which confirms the achievement of the claimed technical result (1c).

The photo of the control experiment shows that the product only after washing without boiling has a more contaminated appearance compared to the product after boiling (1 g).

At the same time, the applicant notes that the product, after boiling for at least 200 times, has not lost its functional - waterproof and consumer properties and can be used further.

Thus, it can be concluded that the applicant has achieved the claimed technical result, namely, a reusable product has been developed for protection against leakage with the possibility of boiling while maintaining functional properties - in the particular case, it is made in the form of a thin sanitary napkin with inner and outer layers of cotton fabric, one an absorbent layer of flannel, a waterproof absorbent layer of medical membrane fabric with PU coating RP 4071 Petrus, which can be subjected to repeated boiling while maintaining functional and consumer properties.

Examples 2-16. The manufacture and use of the claimed product in various special cases of execution (Table in Fig.2).

We carried out a sequence of actions according to Example 1, while various special cases of execution were carried out:

- product shape (column 2 of the Table),

- the number of absorbent layers (column 3 of the Table),

- natural fabric of the outer layers (column 4 of the Table),

- absorbent layer fabrics (column 5 of the Table),

- fabric waterproof absorbent membrane layer (column 6 of the Table).

Products are ultra-thin, without rustling effect.

To test industrial applicability, a contamination and purification procedure was performed according to Example 1.

The results obtained are similar to Example 1.

Before the first wash, the items were heavily soiled, for example, with tea leaves. After 200-fold contamination, washing and boiling, the products looked like a clean and usable product, which confirms the achievement of the claimed technical result. Products only after washing had a more soiled appearance compared to products after boiling.

At the same time, the applicant notes that the products, after boiling for at least 200 times, have not lost their functional - waterproof and consumer properties and can be used further in all special cases of execution.

Thus, the applicant has developed a reusable product for protection against leakage with the possibility of boiling, while the product is made in various special cases of the shape of the product, the number of absorbent layers, the fabric of the inner, outer, absorbent and waterproof absorbent membrane layer, while the product can be subjected to repeated boiling with maintaining functional properties.

The Applicant explains that the number of special cases of execution is not limited to examples 1-16, since any combination of types of fabrics of the layers and the shape of the product is possible, while the Applicant makes a logical conclusion that the claimed technical result is achieved in all cases.

Thus, it can be concluded that the applicant has achieved the claimed technical result, namely, a sanitary napkin has been developed with the possibility of boiling with bleach while maintaining functional properties.

At the same time, the applicant has shown the possibility of using known membrane fabrics during boiling with the use of oxygen bleach while maintaining functional (waterproof and consumer) properties.

Claims (1)

Sanitary napkin with the possibility of boiling with bleach, consisting of several layers sewn around the perimeter, while the layers are made in the following order: the inner layer adjacent to the skin is made of natural fabric, then 1-5 absorbent layers are made of highly absorbent fabric, then a waterproof absorbent layer is made of membrane fabric with the possibility of boiling with bleach, then the outer layer is made of natural fabric.

Images