JP2021078473A - Nipple patch for domestic animal - Google Patents

Abstract

To provide a nipple patch for a domestic animal, which is adaptable to a nipple even in the case that a nipple mouth is inflamed, injured, or sensitive to an adhesive compound, in a nipple protection material used for preventing nipples of domestic animals, mainly dairy cows from mastitis.SOLUTION: The nipple patch is for protecting a nipple mouth of a domestic animal by sticking to the nipple of a domestic animal. The patch has a nipple mouth protective part 8 and a nipple side protective part 9, and is composed of an elastic film 3 in which an adhesive layer 4 is laminated at least on a part of a surface in contact with a nipple. No face in contact with the nipple of the nipple mouth protective part 8 is an adhesive layer, which is a characteristic of the nipple patch for a domestic animal.SELECTED DRAWING: Figure 3

Description

The present invention relates to a novel livestock teat patch. More specifically, because the nipple mouth protection is not an adhesive layer, the nipple mouth is inflamed, damaged, or hypersensitive to the nipple, etc. For livestock teat patches that can also be applied to teats that may affect the condition.

Mastitis is one of the serious diseases of dairy cows. Mastitis is an infectious disease caused by bacteria and other microorganisms invading the breast through the nipple opening and colonizing and multiplying, but the cause of the disease is complicated and it has not been eradicated yet. If you have mastitis, not only will the milk yield and quality decrease, but if the symptoms are mild, you will be treated with antibiotics, but considering the residual drug, you may ship milk during the treatment period. If it becomes impossible and the symptoms are severe and difficult to treat, the affected cows must be eliminated, causing a problem of enormous financial loss for dairy farmers.

Currently, for the purpose of preventing mastitis, a method of immersing the nipple in a dipping agent such as an aqueous bactericidal disinfectant solution before and after milking is generally used during the lactation period when milking is performed. The purpose of this is to sterilize and disinfect the mastitis-causing bacteria adhering to the nipple skin surface. In addition, a method of adding a component that improves the condition of the skin, such as a moisturizer component, to the dipping agent to reduce the adhered area of mastitis-causing bacteria is also used. Various dipping agents for the main purpose of such sterilization and the like have been proposed (for example, Patent Document 1 and Patent Document 2), and a large number of products are commercially available on the market.

In the dry period when milking is not performed, a method of injecting an antibiotic into the breast from the teat mouth at the start of dry milk to kill the mastitis-causing bacteria in the breast is generally used. In the early stage of dry milk, antibiotics have a certain bactericidal effect and are considered to be effective in preventing mastitis. Problems such as contamination with raw milk and the emergence of antibiotic-resistant bacteria after long-term use occur. In addition, it has been reported that the new prevalence of mastitis increases in the early stage of dry milk and the late stage of dry milk before delivery (for example, Non-Patent Document 1 and Non-Patent Document 2), and it is sufficient to take measures against mastitis with antibiotics. Is hard to say.

Therefore, as a means of protecting the dairy cow's teat from mastitis-causing bacteria, a technique has been proposed to prevent bacteria and other microorganisms from invading the udder from the udder mouth by protecting the entire dairy cow's teat.

For example, Patent Document 3 states that as a papillary sealant for immersing a papillary opening, a freon substitute such as tetrahydrofuran, acetonitrile, trichloroethane, trichloroethylene or methylene chloride, or an aromatic compound such as toluene or xylene is used as a solvent for urethane rubber. A papillary sealant in which a rubber-based material selected from latex rubber, butadiene resin, polyvinyl alcohol, liquid butyl rubber, liquid rubber, natural rubber, butyl rubber, nitrile rubber, chloroprene rubber, vinyl acetate rubber, etc. is dissolved at a concentration of 5 to 15%. Proposed. However, since the nipple sealing material described in Patent Document 3 is a rubber-based material, the adhesion with the nipple may be insufficient, the nipple may be easily peeled off from the nipple, and the nipple mouth may not be continuously obstructed. There was room for improvement.

Further, Patent Document 4 proposes a papillary pack containing water, a calcium salt and alginate, and having a viscosity before gelation of 5000 to 1.5 million mPa · sec. The papillary pack described in Patent Document 4 is used by applying a paste obtained by kneading a powder component composed of alginate or calcium sulfate with a solvent such as water to the papillary immediately before use. However, calcium sulfate is insoluble in water, that is, it is a hydrophobic component, and it may be very difficult to uniformly disperse it in a hydrophilic solvent such as water. Therefore, in some cases, when kneading with water, the dispersibility is impaired, air bubbles are mixed in, the uniformity and curability of the obtained teat pack are lowered, and the adhesion to the teat is deteriorated. There was a problem that it was easy to peel off from the nipple.

As described above, although these known methods for protecting the entire teat of a dairy cow can protect the teat to some extent, there are problems such as adhesion to the teat and easy peeling from the teat mouth, and there is room for improvement.

As described above, in order to prevent mammitis, it is effective to prevent the causative bacteria from physically invading from the nipple opening. Further, in the late stage of dry milk before delivery, there is a demand for a nipple protective material that adheres to the nipple for about one week and does not peel off and can block the nipple opening.

As a means for solving this problem, Patent Document 5 discloses a teat protective material for livestock, which is made of a flexible film having a large elongation rate at the time of cutting and can be wrapped and fixed. However, the flexible film described in Patent Document 5 is characterized in that the film is wound and fixed around the outer periphery of the nipple, and the adhesion of the tip of the nipple in the vicinity of the nipple opening is not considered so much. It may be difficult to bring the flexible film into close contact with the nipple opening. Therefore, there is a possibility that a gap may be formed between the nipple opening to be protected and the flexible film, and the causative bacteria such as bacteria may invade from there.

Therefore, the present inventors have proposed a papillary patch for livestock having a portion in close contact with the papillary opening and a portion for wrapping around the papillary circumference (see Patent Document 6). According to this livestock teat patch, the teat mouth to be protected comes into close contact with the livestock teat patch, and it is possible to prevent the invasion of causative bacteria such as bacteria from there.

Patent No. 3404704 Japanese Unexamined Patent Publication No. 11-155404 Japanese Unexamined Patent Publication No. 2000-41529 Japanese Unexamined Patent Publication No. 2006-50911 Japanese Unexamined Patent Publication No. 2006-129795 Japanese Patent No. 6189574

Kodansha Scientific Co., Ltd., New Livestock Handbook, September 10, 2006, Kodansha Co., Ltd. Roger Blowery, Peter Edmondson, Translated by Katsumi Hamana, Augmented and Revised Edition of Bovine Breastitis Control, February 20, 2012, Midori Shobo Co., Ltd.

As described above, various materials for preventing the teats of domestic animals, mainly dairy cows, from mastitis have been studied.

On the other hand, if the nipple opening is already inflamed due to bacterial infection, or if it is damaged due to contact with the ground, etc., even if the above-mentioned nipple patch for livestock is attached, the ground will be subsequently applied. When the teat patch for livestock is peeled off due to contact with, etc., the teat mouth portion is pulled by the adhesive of the teat patch for livestock, and the condition of the teat mouth portion may be further deteriorated by the application of irritation. Alternatively, when using it for dairy cows that are milking 2-3 times a day, or for dairy cows that are not milking in the dry period, attach it once when delivering, that is, starting lactation, etc. It is necessary to peel off the dairy cow patch because it is replaced at regular intervals, and when peeling off, the adhesive of the dairy cow patch pulls the nipple mouth part, which may worsen the condition of the nipple mouth part. is there. Furthermore, if the nipple opening is hypersensitive to the adhesive, the adhesive may cause inflammation.

Therefore, the present invention provides a teat patch for livestock that can prevent the adverse effect of the adhesive on the teat mouth portion in the teat protective material used for preventing the teat of a domestic cow, mainly a dairy cow, from mastitis. With the goal.

As a result of diligent studies to prevent the adhesive from adversely affecting the nipple opening, the nipple protection portion is not provided with an adhesive layer, and the nipple side protection portion is provided with an adhesive layer to maintain the nipple. We have found that the problem of the present invention that it can be applied to the nipple mouth in any state can be solved by using the nipple patch for livestock so as not to impair the sex, and has completed the present invention.

That is, the present invention is a teat patch for livestock having a teat mouth protection portion and a teat side protection portion, and the teat patch for livestock is elastic in which an adhesive layer is laminated on at least a part of a surface in contact with the teat. It is a teat patch for livestock, which is made of a film and the surface of the teat mouth protection portion in contact with the teat is not an adhesive layer.

Although the nipple patch for livestock of the present invention does not have an adhesive layer at the nipple opening portion, it is maintained at the same level as Patent No. 6189574 already proposed by the present inventors by holding the nipple patch on the nipple due to the adhesiveness of the side surface of the nipple. When the nipple opening is inflamed, damaged, or hypersensitive to the adhesive by making the surface of the nipple opening protection part non-adhesive layer while having the property. However, it is an extremely promising domestic teat patch that can suppress the adverse effects of adhesives on the teat mouth.

It is a figure which shows the example of the planar shape of the papillary patch for livestock of this invention. It is sectional drawing which shows an example of the conventional teat patch for livestock. It is sectional drawing which shows an example of the teat patch for livestock of this invention. It is sectional drawing which shows an example of the teat patch for livestock of this invention.

The present invention will be specifically described below. In the drawings of the present invention, in order to make the characteristic parts easy to understand, the components may be shown at a ratio different from that of the actual one.

(Nipple patch)
The nipple patch for livestock of the present invention (hereinafter, may be simply referred to as "nipple patch") has a nipple opening protection portion and a nipple lateral protection portion, and at least a part of the surface in contact with the nipple. It is composed of an elastic film on which an adhesive layer is laminated, and is characterized in that the surface of the teat mouth protection portion in contact with the papilla is not the adhesive layer.

Further, the papillary patch of the present invention is not particularly limited in shape as long as it has the above-mentioned characteristics. As an example, in FIG. 1, the nipple patch has a shape of a nipple mouth protection portion 8 that protects the nipple mouth and two independent nipple side protection portions 9 that are attached to the side surface of the nipple. The surface of the portion 8 in contact with the papilla is configured so as not to be an adhesive layer. At least one of the side protection portions 9 of each nipple has a structure in which they overlap each other when attached to the nipple.

In the example of FIG. 1, the case where two nipple side protection portions 9 are independent is illustrated, but the nipple side protection portion 9 may be one or two or more, and a plurality of nipple side protection portions 9 are independent. It does not have to be. Further, in FIG. 1, the nipple side surface protection portion 9 has a shape without corners, but it is preferable that the nipple side surface protection portion 9 has no corners as described above. Since the nipple side surface protection portion 9 has no corners, when the nipple is attached to the nipple, it is difficult to roll up from the corners and it is difficult to peel off.

Further, in FIG. 1, an example is shown in the case where the nipple opening protection portion 8 is circular, and the diameter d corresponds to the diameter of the nipple opening protection portion 8. This diameter d is appropriately selected according to the size of the teat mouth of the livestock to be used, but usually the range of 25 to 35 mm is selected. The shape of the nipple opening protection portion 8 is not particularly limited, but a circular shape or an elliptical shape is preferable, and a circular shape is more preferable.

The size of the nipple side surface protection portion 9 may be appropriately determined according to the size, shape, etc. of the nipple, but it is preferably 20 mm or more and 100 mm or less in both the vertical direction and the horizontal direction when viewed from the nipple opening protection portion. It is preferably 30 mm or more and 100 mm or less.

The layer structure of the nipple patch of the present invention is not particularly limited as long as there is no adhesive layer on the surface of the nipple mouth protection portion in contact with the nipple, and any other layer may be laminated. .. As an example, in FIG. 3 and FIG. 4, which are cross sections of C in FIG. 1, in the example of FIG. 3, the papillary side surface protection portion 9 is composed of an elastic film 3 on which the adhesive layer 4 is laminated, and the papillary head is formed. The mouth protection portion 8 is made of an elastic film 3 on which the pressure-sensitive adhesive layer 4 is not laminated.

Further, in the example of FIG. 4, the nipple side surface protection portion 9 is composed of an elastic film 3 on which the adhesive layer 4 is laminated, and the nipple mouth protection portion 8 is an elastic film 3 on which the adhesive layer 4 is laminated. The protective layer 10 is further laminated on the surface of the nipple in contact with the nipple. The material of the protective layer 10 is not particularly limited as long as it does not irritate the nipple opening, and may be the same material as the base film 2 of the elastic film 3 or another material.

In the papilla patch of the present invention, in consideration of operability and the like, it is preferable that a protective film is further laminated on the surface not in contact with the papilla and a release sheet is laminated on the surface in contact with the papilla.

(Elastic film)
In the present invention, the elastic film is a portion to be a base material of the papilla patch, and an adhesive layer is laminated on at least a part of the surface of the base film in contact with the papillae.

The characteristics of this elastic film are not particularly limited, but the double elongation stress is in the range of 0.1 to 5N, particularly 0.2 to 3N, and most preferably 0.2 to 1.0N. Is preferable.

In the present invention, the double elongation stress is a stress measured while maintaining the stretched state to a double length, and as shown in Examples described later, a tensile tester is used. Is measured. This double elongation stress is not the instantaneous stress when the length is doubled when pulled at a constant speed using a tensile tester.

The reason for defining this double elongation stress is as follows. When applied to the nipple, the nipple patch is usually applied with a slight stretch. In addition, after being attached to the nipple, the livestock may move around or the size of the nipple may change, and the nipple patch after attachment may be stretched. On the premise that the nipple patch is stretched when it is attached to the nipple in this way, the stress in the state where the nipple patch, which is an actually used mode, is stretched twice is defined.

The fact that the teat patch exhibits double elongation stress means that the teat patch exhibits elasticity and expands or contracts according to the deformation of the teat due to the movement of livestock.

In the present invention, by making the double elongation stress of the teat patch larger than the above-mentioned preferable lower limit value, the teat patch attached to the teat is sufficiently extended and contracted in accordance with the change in the teat shape. As a result, it is possible to prevent the nipple from being easily peeled off or torn easily. Further, by making the double elongation stress smaller than the above-mentioned preferable upper limit value, the papillary patch is not excessively contracted, and excessive deformation of the papillary can be prevented.

Further, in the present invention, the double elongation stress is not directional, and it is preferable to show a value in the above range even when the stress is extended to a double length in any direction.

Further, in order to further improve the followability to the deformation of the papilla and the workability of sticking, the tensile elastic modulus of the elastic film is 1 MPa or less, particularly 0.05 to 0.5 MPa, most preferably 0.05 to 0.3 MPa. It is preferably in the range.

As the base film of the elastic film used in the present invention, a film produced by processing a known material can be used. Specifically, examples of the material constituting the base film include polyolefin-based resin, styrene-based resin, vinyl acetate-based resin, soft vinyl chloride resin, polyurethane-based resin and the like. Among these resins, it is preferable to use a polyurethane-based resin in order for the teat patch to be attached to a soft teat such as livestock in a state in which shape followability is particularly good. Then, by adjusting the composition, crystallinity, blending ratio of contained components, molecular weight, etc. of these resins, and appropriately adjusting the film forming conditions, film thickness, etc., a film satisfying desired physical properties can be obtained. be able to. The thickness of the base film is preferably 10 μm or more and 100 μm or less from the viewpoint of handling. Further, the base film is preferably colored. By this coloring, the fact that the teat patch of the present invention is attached can be easily visually recognized even in a dark barn. As a result, it becomes easy to perform the pasting work and check the state after pasting. At that time, it is preferable to use a colorant having higher safety.

(Adhesive layer)
In the present invention, the pressure-sensitive adhesive layer is not particularly limited and may be formed by using a known pressure-sensitive adhesive. Specific examples of the pressure-sensitive adhesive include a pressure-sensitive adhesive made of a rubber-based, acrylic-based, silicone-based, urethane-based material, or the like. Above all, it is preferable to use an adhesive made of an acrylic material in order to prevent rashes and the like from the teats of livestock.

The thickness of the pressure-sensitive adhesive layer is not limited as long as sufficient adhesiveness to the papilla can be ensured, and is usually preferably 1 μm or more and 50 μm or less.

(Protective film)
The protective film arbitrarily used in the present invention is capable of preventing deformation of the elastic film during storage and preventing the elastic films from adhering to each other, and is a surface of the elastic film that does not come into contact with the papilla. It is laminated on.

The material of the protective film is not particularly limited, but it is preferable that the protective film is a chewy film and has a tensile elastic modulus larger than that of the elastic film. From this point of view, various thermoplastic resin films such as polyester films such as polyethylene terephthalate (PET) and olefin resin films such as polyethylene and polypropylene are used as the protective film, among which polypropylene films and polyesters are used. Films are particularly suitable. Further, depending on the purpose, a transparent film may be used, or an opaque film may be used.

The thickness of the protective film is preferably 30 μm or more, more preferably 40 μm or more in consideration of operability. The upper limit of the thickness of the protective film is not particularly limited, but is preferably 300 μm or less in consideration of operability and economy.

Further, the size of the protective film is not particularly limited as long as it can protect the elastic film, and usually, the size equal to or larger than that of the elastic film is preferable.

(Release sheet)
The release sheet arbitrarily used in the present invention makes it possible to prevent the adhesive layers from adhering to each other and the adhesive layer and the protective film from adhering to each other during manufacturing or storage, and is an elastic film. It is laminated on the surface in contact with the papilla.

The material of the release sheet is held by the adhesive layer when not in use, but is preferably formed of a material that can be easily peeled off. In view of this point, the release sheet is preferably a release paper such as silicone paper.

Further, the size of the release sheet is not particularly limited as long as it can prevent the adhesive layer of the elastic film from adhering to another layer, and usually, the size equal to or larger than that of the elastic film is preferable. Further, the size of the protective film may be the same, and any of the same size, release sheet> protective film, and release sheet <protective film can be adopted.

Further, the protective film and the release sheet are not limited to a pair with the elastic film, but also a plurality of protective films in which a plurality of elastic films are laminated side by side in the horizontal or vertical direction between the protective film and the release sheet. It is also possible to take a mode in which the elastic films of the above are laminated side by side in the horizontal or vertical direction, and the release sheet is laminated on the elastic film units.

(How to protect the teat of livestock using a teat patch)
For example, in the case of a teat patch composed of a release sheet / elastic film / protective film layer, first the release sheet is peeled off, and then the elastic film with the protective film is placed so that the center of the teat protection part becomes the teat mouth of the livestock. By sticking it in close contact with the nipple, peeling off the protective film after sticking, and sticking the nipple side protection part in close contact with the nipple side, only the elastic film is covered with the nipple mouth of the domestic animal. Become.

In this way, by attaching the papilla patch so that substantially the center of the teat protection portion is in contact with the teat mouth, it is possible to protect the teat of livestock and prevent mastitis and the like.

In addition, when the papilla patch of the present invention is used, a bactericidal disinfectant can be applied to the nipple opening or a bactericidal disinfectant can be injected into the duct before being attached to the nipple. By performing such an operation, it is possible to more reliably reduce diseases such as mastitis. Further, the operation of wiping with a wet tissue soaked with a disinfectant may be performed.

The actual usage is, for example, about half a day during the milking period, which is the period for milking dairy cows, and during the dry period (for example, in the early stage of dry milk and before delivery), which is easily infected by bacteria and the like. In the latter half of dry milking), a teat patch is attached to the teat so as to cover the teat mouth of the cow for about one week. In use for dairy cows during the milking period, the teat patch is attached to the teat after the end of milking, the teat patch is peeled off before the next milking, and the teat batch is attached to the teat again after milking.

Hereinafter, the present invention will be described with reference to examples, but the present invention is not limited to the following examples. In Example 1 (a mode in which an adhesive layer is not laminated on the nipple mouth protection portion) and Comparative Example 1 (a mode in which an adhesive layer is also laminated on the nipple mouth protection portion), a nipple patch having the shape shown in FIG. 1 is created. did. Regarding the size, d was 30 mm, L1 was 42 mm, and L2 was 55 mm. A urethane-based elastomer was used as the base film, and an acrylic-based pressure-sensitive adhesive was used as the pressure-sensitive adhesive. The layer structure and layer thickness are shown in Table 1. Table 1 also shows the physical properties measured together.

The physical properties were measured by the following method.

(Measurement of double elongation stress and tensile modulus)
As a measuring device, a tensile tester manufactured by Shimadzu Corporation (model number: EZ Test / EZ-SX) was used.
For the sample pieces prepared by the following method, the tensile elastic modulus was measured under the conditions of a chuck distance of 20 mm, a tensile speed of 50 mm / min, and a sample width of 30 mm according to JIS K7127: 1999, and the elongation was separately held twice. The stress at time (stress at double elongation) was measured.

In both Example 1 and Comparative Example 1, the papilla patch having the shape shown in FIG. 1 was used and cut into a rectangular shape having a length of 42 mm and a width of 30 mm so as to include the entire papilla mouth protection portion 8 with a cutter. , A sample piece was prepared by laminating the surfaces with the adhesive layer to each other and used for the measurement. Since the sample piece is in a state where two papilla patches are attached to each other, half of the stress value at double elongation and the tensile elastic modulus of the sample piece are set to half the stress at double elongation and the tensile modulus of elasticity of the papilla patch. Asked as.

Table 1 shows the measured physical properties.

（乳牛による粘着維持評価）
図３（実施例１）、図２（比較例１）に示す前記乳頭パッチを使用して、ホルスタイン種の乳牛３頭の乳頭に該乳頭パッチを貼付し、粘着維持性を評価した。実施例１、比較例１での維持性を出来る限り近い条件で比較するため、実施例１の乳頭パッチは、右前乳頭と左後乳頭に、比較例１の乳頭パッチは、左前乳頭と右後乳頭にそれぞれ対角線上に貼付した。

(Adhesion maintenance evaluation by dairy cows)
Using the teat patch shown in FIG. 3 (Example 1) and FIG. 2 (Comparative Example 1), the teat patch was attached to the teats of three Holstein cows, and the adhesive retention was evaluated. In order to compare the maintainability of Example 1 and Comparative Example 1 under the conditions as close as possible, the papilla patch of Example 1 was applied to the right anterior papilla and the left posterior papilla, and the papilla patch of Comparative Example 1 was applied to the left anterior papilla and the right posterior. It was affixed diagonally to each nipple.

The three Holstein cows tested this time are all dry cows. Before applying the protective patch, the dirt and sebum on the tip of the nipple were wiped off with a wet tissue.

The adhesion state of the protective patch was evaluated on a 4-point scale according to the following criteria. The results of Example 1 are shown in Table 2, and the results of Comparative Example 1 are shown in Table 3.
3: No peeling or floating of the protective patch from the nipple.
2: The end of the protective patch is floating.
1: The end of the protective patch is completely peeled off.
0: The entire protective patch is completely peeled off.
(Evaluation of operability of applying nipple patch)
The application to the nipple was carried out as follows. First, the release sheet is separated from the teat patch, and the pressure-sensitive adhesive layer 4 is brought into close contact with the teat. Next, the elastic film 3 is attached to the papilla by separating the protective film. At this time, the operability was evaluated by the following method. The results of Example 1 are shown in Table 2, and the results of Comparative Example 1 are shown in Table 3.

(Evaluation of operability-1; Evaluation at the time of initial application)
1: When the pressure-sensitive adhesive layer 4 was brought into close contact with the nipple, it was brought into close contact with the nipple without any problem.
0: When the pressure-sensitive adhesive layer 4 was brought into close contact with the papilla, it was not sufficiently adhered to the papilla.

(Evaluation of operability-2; Evaluation when the protective film is separated)
1: When the protective film was separated after the elastic film 3 was attached to the papilla, the protective film could be separated without any problem.
0: When the protective film was separated after the elastic film 3 was attached to the papilla, the elastic films 3 were in close contact with each other and could not be attached well (re-doing was necessary).

実施例１、比較例１共に維持性は良好であり、２週間以上乳頭に維持できることを確認した。貼付操作性についても、実施例１、比較例１共に良好であり、差は観られなかった。
（乳頭口スコアの評価）
乳頭口スコアは、以下に示す乳頭口の状態を表す指標であり、世界中で広く用いられている指標である。スコア１が正常であるが、スコア２〜４の状態の乳頭は多くあり、乳頭口スコア３の乳頭が世界中で全体の１５％程度、乳頭口スコア４と最も悪い状態の乳頭が世界中で全体の５％程度あることがこれまでの調査により分かっている。

It was confirmed that both Example 1 and Comparative Example 1 had good maintainability and could be maintained on the nipple for 2 weeks or more. The sticking operability was also good in both Example 1 and Comparative Example 1, and no difference was observed.
(Evaluation of nipple mouth score)
The nipple mouth score is an index showing the condition of the nipple mouth shown below, and is a widely used index all over the world. Score 1 is normal, but there are many nipples with scores 2-4, nipples with a nipple mouth score of 3 account for about 15% of the total, and nipples with a nipple mouth score of 4 in the worst condition all over the world. Previous surveys have shown that it accounts for about 5% of the total.

In milking cows, 10 teats with a "teat mouth score of 3" were selected and a teat patch was attached. After 11 hours, the teat patch was removed and the teat mouth score was reconfirmed before the next milking. Table 4 shows the results of the average value of the nipple mouth scores of the 10 nipples.

(Nipple mouth score evaluation-1; Evaluation before applying the nipple patch)
1: The tip of the nipple is smooth.
2: The tip of the nipple is a little rough.
3: The tip of the nipple becomes rough, and a ring-shaped thickening can be seen around the nipple opening.
4: The tip of the nipple is very rough, and the tip of the nipple looks like a flower.

(Nipple mouth score evaluation-2; Evaluation when the nipple patch is removed)
1: The tip of the nipple is smooth.
2: The tip of the nipple is a little rough.
3: The tip of the nipple becomes rough, and a ring-shaped thickening can be seen around the nipple opening.
4: The tip of the nipple is very rough, and the tip of the nipple looks like a flower.

実施例１では、乳頭口が１１時間保護され、粘着剤による悪影響がなかったことから、乳頭口スコアが２に改善した乳頭もあった。

In Example 1, some teats had an improved teat mouth score of 2 because the teat mouth was protected for 11 hours and was not adversely affected by the adhesive.

On the other hand, in Comparative Example 1, when the teat patch was peeled off, the teat mouth was pulled by the adhesive, and some cows had the teat mouth sensitive to the adhesive. Deteriorated to 4. Some cows ran wild because the inflamed nipples hurt when the patch was removed.

1. 1. Nipple patch 2. Base film 3. Elastic film 4. Adhesive layer 8. Nipple mouth protection section 9. Nipple side protection 10. Protective layer d. Diameter L1. The longest length of the side protection of the nipple in the vertical direction when viewed from the protection of the nipple opening L2. The longest length of the lateral nipple side protection when viewed from the nipple mouth protection

Claims (3)

A nipple patch for livestock that has a nipple mouth protection part and a nipple side protection part.
The livestock teat patch comprises an elastic film having an adhesive layer laminated on at least a part of a surface in contact with the teat, and the surface of the teat mouth protection portion in contact with the teat is not an adhesive layer. Nipple patch. The nipple patch for livestock according to claim 1, wherein the adhesive layer is not laminated on the surface of the nipple mouth protection portion in contact with the nipple. The livestock nipple patch according to claim 1, wherein a layer other than the adhesive layer is laminated on the surface of the nipple mouth protection portion in contact with the nipple.

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