Base paper for seeding tape, method for manufacturing base paper for seeding tape, and seeding tape

Abstract

The present invention provides a base paper for seeding tape that is resistant to tearing during processing into seeding tape, and has excellent water solubility and solubility in soil, a method for manufacturing the base paper for seeding tape, and seeding tape. [Solution] A base paper for seeding tape, made of a wet nonwoven fabric containing wood pulp and water-soluble polyvinyl alcohol fibers, wherein the ease of unraveling, measured in accordance with JIS P 4501 for toilet paper, is 100 seconds or less. Also, a method for manufacturing this base paper for seeding tape, and a seeding tape in which seeds are attached to the base paper for seeding tape.

Description

[Technical Field]

[0001] The present invention relates to a base paper for seeding tape, a method for manufacturing the base paper for seeding tape, and seeding tape. [Background technology]

[0002] In recent years, seeding tapes have become known as a means of improving the efficiency of sowing in home gardens and agriculture. These tapes fix seeds to a non-woven fabric sheet, allowing the seeds to be sown along with the non-woven fabric sheet. Seeding tapes are tapes containing a fixed number of seeds at regular intervals. By arranging these tapes on the surface of soil in a field or other area and covering them with soil, a fixed amount of seeds can be buried (sown) in the soil at regular intervals. After the seeding tapes are sown in the soil, the tape base material dissolves due to moisture in the soil or seeping rainwater, exposing the enclosed seeds, which then grow (germinate) in the soil. Seeding tape base paper refers to the base paper used for seeding tapes.

[0003] Since seeding tapes need to dissolve in soil moisture or seeping rainwater, water-soluble or water-dispersible paper or water-soluble polymer films are used as support materials (Patent Documents 1 and 2). [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 4-84808 [Patent Document 2] Japanese Patent Publication No. 2012-131850 [Overview of the Initiative] [Problems that the invention aims to solve]

[0005] As described in Patent Documents 1 and 2, the water solubility of seeding tape can be improved by using water-soluble or water-dispersible paper, or a water-soluble polymer film, as a support. However, improving water solubility can cause the base paper for seeding tape to tear when seeds are embedded or when the tape is processed into seeding tape. On the other hand, improving the strength of the base paper for seeding tape can result in insufficient water solubility when buried in soil, which can affect seed germination.

[0006] This invention has been made in view of these circumstances, and aims to provide a base paper for seeding tape that has resistance to tearing of the seeding tape base paper by seeds when processed into seeding tape, has excellent water solubility and dissolution in soil, and has excellent seed germination and growth properties, a method for manufacturing the base paper for seeding tape, and seeding tape. [Means for solving the problem]

[0007] This invention was made to solve the above-mentioned problems, and by including water-soluble polyvinyl alcohol fibers and setting the ease of unraveling value to below a predetermined value, the problems of the present invention can be solved, and the present invention has been completed. The outline of the present invention is as follows. [1] A base paper for seeding tape, consisting of a wet-laid nonwoven fabric containing wood pulp and water-soluble polyvinyl alcohol fibers, wherein the ease of unraveling, as measured in accordance with JIS P 4501 for toilet paper, is 100 seconds or less. [2] The seeding tape base paper described in [1], wherein the elongation in the MD direction is 10% or more. [3] A base paper for seeding tape as described in [1] or [2], wherein the tensile strength in the MD direction (N / 15mm) is 2.5 or more. [4] The seeding tape base paper according to any one of [1] to [3], wherein the content of the water-soluble polyvinyl alcohol fiber is 1.0% by weight or more and less than 4.0% by weight. [5] A base paper for seeding tape according to any one of [1] to [4], containing rayon fibers. [6] The wet nonwoven fabric is dried using a Yankee dryer in which the surface temperature of the drum is 85°C or more and 105°C or less, as described in any of [1] to [5]. [7] A method for producing a base paper for seeding tape, comprising: a papermaking step of producing a wet nonwoven fabric by papermaking an aqueous slurry obtained by dispersing wood pulp and water-soluble polyvinyl alcohol fibers in water; and a drying step of drying the wet nonwoven fabric using a Yankee dryer having a drum surface temperature of 85°C or more and 105°C or less. A seeding tape having seeds attached to a base paper for seeding tape as described in any of [8], [1], to [6]. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a base paper for seeding tape that has resistance to tearing of the base paper by seeds when processed into seeding tape, has excellent water solubility and soil solubility, and has excellent seed germination and growth properties, a method for manufacturing the base paper for seeding tape, and seeding tape. [Modes for carrying out the invention]

[0009] The following describes the base paper for seeding tape, the method for manufacturing the base paper for seeding tape, and the seeding tape according to the present invention. In this specification, "%" and "parts" refer to weight unless otherwise specified. Furthermore, numerical ranges defined using the symbol "~" include the values ​​at both ends of "~" (upper and lower limits).

[0010] <Base paper for seeding tape> The seed-sowing tape base paper of the present invention is made of a wet-laid nonwoven fabric containing wood pulp and water-soluble polyvinyl alcohol fibers, and its ease of unraveling, measured in accordance with JIS P 4501 for toilet paper, is 100 seconds or less.

[0011] (Wood pulp) The wood pulp used in the seed tape base paper of the present invention is not particularly limited, but for example, chemical pulps such as bleached softwood kraft pulp (NBKP), unbleached softwood kraft pulp (NUKP), semi-bleached softwood kraft pulp (NSBKP), and softwood sulfite pulp can be used, as well as mechanical pulps such as stone ground pulp (SGP), pressurized stone ground pulp (TGP), chemigland pulp (CGP), crushed wood pulp (GP), and thermomechanical pulp (TMP), as well as softwood pulps such as dissolved pulp and mercerized pulp. These may be used individually or in combination of two or more. In the present invention, softwood pulp with a long fiber length is preferably used as the wood pulp.

[0012] The wood pulp is preferably of a filtration capacity (Canadian standard filtration capacity) of 350 to 750 ml, measured in accordance with JIS P 8121-2012, and more preferably of 400 to 700 ml. By keeping the filtration capacity below the upper limit, it is possible to prevent the seeding tape base paper from being torn by the seeds during the process of forming the base paper into tape and wrapping the seeds. Furthermore, by keeping the filtration capacity above the lower limit, solubility in water can be ensured.

[0013] The wood pulp content is preferably 26.0% by weight or more and 99.9% by weight or less, and more preferably 56.5% by weight or more and 99.0% by weight or less. By setting the wood pulp content within the above range, the biodegradability of the base paper for seeding tape can be improved, and the impact on agricultural crops can be minimized.

[0014] (Water-soluble polyvinyl alcohol fiber) The seed tape base paper of the present invention contains water-soluble polyvinyl alcohol fibers. The water-soluble polyvinyl alcohol fibers are blended into the wood pulp during wet papermaking. The water-soluble polyvinyl alcohol fibers act as a binder to hold the wood pulp together, but at the same time, they dissolve when the tape becomes seed tape due to moisture, etc. When the seed tape base paper of the present invention becomes seed tape, the polyvinyl alcohol fibers dissolve in water, making it easier to disintegrate in water. The water-soluble polyvinyl alcohol fiber used in the present invention does not dissolve in water during the papermaking process, and is preferably one that dissolves in water at a temperature of 10°C to 40°C after drying at a certain temperature in the drying process after papermaking.

[0015] The fiber length of the water-soluble polyvinyl alcohol fiber used in the present invention is preferably 2 mm to 10 mm, more preferably 3 mm to 7 mm. The fineness is preferably 0.2 dtex to 3.5 dtex, more preferably 0.8 dtex to 3.3 dtex. By setting the fiber length and fineness below the above upper limit values, the water solubility can be improved. Also, by setting the lower limit value or more, the strength when locking seeds to the base paper for the sowing tape and making it into a sowing tape can be improved.

[0016] The content of the water-soluble polyvinyl alcohol fiber is preferably 0.1% by weight or more and less than 4.0% by weight, more preferably 1.0% by weight or more and 3.5% by weight or less. By setting the content of the water-soluble polyvinyl alcohol fiber to 0.1% by weight or more, the strength when locking seeds to the base paper for the sowing tape and making it into a sowing tape can be improved. Also, by setting the content of the water-soluble polyvinyl alcohol fiber to less than 4.0% by weight, the water solubility can be improved, and it becomes easier to adjust the value of JIS P 4501 of toilet paper to 100 seconds or less. Thereby, the solubility in the soil can be improved, the seeds are likely to be exposed, and the germination ability can be improved.

[0017] Examples of the water-soluble polyvinyl alcohol fiber used in the present invention include product name: VPB105-2 (manufactured by Kuraray Co., Ltd.), product name: VPB105-1 (manufactured by Kuraray Co., Ltd.), product name: VPB041 (manufactured by Kuraray Co., Ltd.), product name: VPB101 (manufactured by Kuraray Co., Ltd.), product name: SPG056-11 (manufactured by Kuraray Co., Ltd.), product name: VPW101 (manufactured by Kuraray Co., Ltd.), etc. Among them, in terms of functioning as a binder during papermaking and being easily dissolved in water after papermaking, the product name: VPW101 (manufactured by Kuraray Co., Ltd.) is preferably used.

[0018] (Rayon fiber) The seed-sowing tape base paper of the present invention may contain rayon fibers in addition to wood pulp. The inclusion of rayon fibers improves water solubility. Furthermore, it improves the texture and softness of the seed-sowing tape base paper. In this invention, rayon fibers are produced by dissolving raw materials such as wood pulp or cotton and then processing them again into threads. Short fibers are preferred for the rayon fibers. Viscose rayon produced by the viscose process can also be suitably used.

[0019] The amount of rayon fibers in the base paper for seeding tape is preferably in the range of 100:0 to 30:70 by weight ratio of wood pulp to rayon fibers, and more preferably in the range of 100:0 to 60:40. By setting the rayon fiber blending ratio within the above range, the papermaking properties of the base paper for seeding tape can be improved.

[0020] The fiber length of the rayon fibers is preferably 2 mm to 15 mm, and more preferably 3 mm to 10 mm. The fineness is preferably 0.2 dtex to 3.5 dtex, and more preferably 0.8 dtex to 3.3 dtex. By setting the fiber length and fineness of the rayon fibers to be below the above upper limits, the papermaking properties of the seeding tape base paper can be improved. Conversely, by setting them to be above the above lower limits, the strength of the seeding tape base paper when used to secure seeds and form seeding tape can be improved.

[0021] <Other materials> The base paper for seeding tape of the present invention may contain materials other than the fibers mentioned above, to the extent that they do not affect the quality. For example, it may contain internal additives such as wet strength agents, sizing agents, fillers, yield improvers, fixatives, dry strength agents, dyes, and pigments. These can be blended together with wood pulp and water-soluble polyvinyl alcohol fibers during papermaking.

[0022] <Manufacturing method for base paper used for seeding tape> Next, the method for producing the seed tape base paper of the present invention will be described. The seed tape base paper of the present invention comprises a papermaking step of preparing an aqueous slurry by dispersing raw materials in water, and producing a wet nonwoven fabric by papermaking this aqueous slurry, and a drying step of drying the wet nonwoven fabric produced in the papermaking step. The wet papermaking method is preferably used for producing the seed tape base paper of the present invention.

[0023] (Paper making process) The papermaking process involves preparing an aqueous slurry by dispersing wood pulp fibers, water-soluble polyvinyl alcohol fibers, and optionally rayon fibers and other materials in water, and then producing a wet nonwoven fabric by papermaking using this aqueous slurry. The paper machine used in the production of wet nonwoven fabrics is not particularly limited and can be a long screen paper machine, a cylinder screen paper machine, a short screen paper machine, an inclined short screen paper machine, etc. Among these, it is preferable to use a cylinder screen paper machine that can greatly increase fiber orientation.

[0024] (drying process) Next, the wet nonwoven fabric produced in the papermaking process is dried. For the drying process, various types of dryers can be selected as appropriate, including multi-cylinder dryers, Yankee dryers, and hot air dryers. Among these, the Yankee dryer is preferable because it allows for easy control of the paper surface temperature.

[0025] When using a Yankee dryer in the drying process, it is preferable that the surface temperature of the Yankee dryer's heating drum be between 85°C and 105°C. If the surface temperature of the heating drum is lower than 85°C, drying will be insufficient, resulting in insufficient strength when the tape is formed to wrap the seeds. On the other hand, if the surface temperature of the heating drum is higher than 105°C, the polyvinyl alcohol fibers will melt and will not be able to maintain their shape, resulting in poor water solubility and a break-down time of more than 100 seconds (JIS P 4501 toilet paper break-down time). If the break-down time is longer than 100 seconds, the seeds will not be easily exposed in the soil, resulting in poor germination. Furthermore, it is preferable to dehydrate and squeeze the paper substrate before the drying process to reduce the moisture content.

[0026] Furthermore, the papermaking speed of the paper machine used is preferably 20 m / min to 250 m / min, and the diameter of the Yankee dryer drum is preferably 2400 mm to 3700 mm. By setting the papermaking speed of the paper machine and the diameter of the Yankee dryer drum within the above ranges, the time during which heat is applied to the wet nonwoven fabric can be changed. By changing the time during which heat is applied to the wet nonwoven fabric, the water solubility in water can be improved. In addition, the strength in the process of wrapping seeds in tape can be improved.

[0027] (Physical properties of the base paper for seeding tape) The physical properties of the base paper for the seeding tape described above will be explained.

[0028] [Ease of loosening] The seed-sowing tape base paper of the present invention has a disintegration rate of 100 seconds or less, as measured according to JIS P 4501 for toilet paper. By setting the disintegration rate to 100 seconds or less, and further shortening the time, the seed-sowing tape base paper can be made to disintegrate more easily in water. If the disintegration rate is longer than 100 seconds, the paper becomes difficult to disintegrate in water, making it difficult for the seeds to be exposed and resulting in poor germination. To bring the measured values ​​for toilet paper within the above numerical range according to JIS P 4501, this can be achieved by adjusting the content of water-soluble polyvinyl alcohol fibers. Alternatively, it can be adjusted by setting the amount of heat applied to the water-soluble polyvinyl alcohol fibers during the drying process, i.e., the surface temperature of the dryer drum during the drying process, within an appropriate range. Specifically, as mentioned above, the content of water-soluble polyvinyl alcohol fibers is preferably 0.1% by mass or more and less than 4.0% by mass. Furthermore, the surface temperature of the drum is preferably 85°C to 105°C.

[0029] [Growth in the MD direction] The base paper for seeding tape of the present invention preferably has an elongation of 10% or more in the MD direction, and more preferably 20% or more. By having an elongation of 10% or more in the MD direction, when processing the base paper for seeding tape into seeding tape, the conformability when wrapping seeds can be improved, and the occurrence of punctures by seeds can be prevented. One method for imparting elongation is to apply crepe during the papermaking process. For example, one method of applying crepe is to crepe the paper using a doctor blade on the drum of a Yankee dryer to impart elongation. The elongation in the MD direction can be measured by a method compliant with JIS P 8113.

[0030] [Tensile strength in the MD direction] The base paper for seeding tape of the present invention preferably has a tensile strength in the MD direction of 2.5 N / 15 mm or more, and more preferably 3.5 N / 15 mm or more. By setting the tensile strength in the MD direction to 2.5 N / 15 mm or more, the base paper for seeding tape can be made into a tape-shaped seeding tape, improving the strength when securing seeds. To achieve a tensile strength of 2.5 N / 15 mm or higher in the MD direction of the base paper for seeding tape, this can be done by adjusting the content of water-soluble polyvinyl alcohol fibers, which act as a binder. Increasing the content of water-soluble polyvinyl alcohol fibers increases the tensile strength. However, since increasing the content of water-soluble polyvinyl alcohol fibers increases the ease of unraveling, it is preferable to adjust the content while considering both tensile strength and ease of unraveling. Additionally, the tensile strength can be adjusted by adjusting the freeness (Canadian standard filtration degree) of the wood pulp. Reducing the freeness of the wood pulp increases the tensile strength. Furthermore, reducing the amount of rayon fibers added can also increase the tensile strength. The tensile strength in the MD direction can be measured using a method compliant with JIS P 8113.

[0031] [Basic weight] The base paper for seeding tape of the present invention has a basis weight of 10 g / m². 2 ~40g / m 2 Preferably, it is 20 g / m 2 ~30g / m 2 It is more preferable that the basis weight be 10 g / m². 2 By doing so, the base paper for the seeding tape can be made into a tape-shaped seeding tape, improving the strength when securing the seeds. On the other hand, the basis weight is 40 g / m². 2 By doing the following, it is possible to prevent the paper from becoming too thick, and the paper, when dissolved in water in the soil, will not prevent the seeds from being exposed, resulting in good germination.

[0032] <Seed sowing tape> The seed-sowing tape base paper of the present invention can be suitably used as a seed tape in which seeds are attached to the seed-sowing tape base paper. As an example of using the seeding tape base paper of the present invention as seeding tape, the seeding tape base paper is cut along its longitudinal direction to a certain width (usually about 1 to 5 cm) to form a tape. This tape-shaped seeding tape base paper is folded in half along its longitudinal direction, seeds are placed at regular intervals in the resulting groove, and then the seeding tape base paper is twisted so that the seeds are sealed between the layers of the seeding tape base paper to form a seeding tape.

[0033] According to the seed-sowing tape base paper of the present invention, the ease of unraveling, measured in accordance with JIS P 4501 for toilet paper, is 100 seconds or less. Therefore, water solubility can be improved, and when the seed-sowing tape with seeds attached is buried in the soil, the seed-sowing tape dissolves easily, improving seed germination. In addition, the strength of the seed-sowing tape base paper can be improved when it is made into seed-sowing tape, thus preventing the seed-sowing tape from tearing. [Examples]

[0034] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to the following examples.

[0035] (Measurement method) The physical properties of the seed-sowing tape base paper produced in the examples and comparative examples were measured by the following method. (1)Basic weight Measurements were taken in accordance with JIS P 8124. (2) Thickness Measurements were taken in accordance with JIS P 8118. (3) Density It was calculated from the basis weight and thickness values. (4) Tensile strength Measurements were taken in accordance with JIS P 8113. (5) Growth Measurements were taken in accordance with JIS P 8113. (6) Ease of loosening Measurements were taken in accordance with JIS P 4501.

[0036] (Wood pulp) The pulp used was made from coniferous tree pulp and adjusted to a Canadian standard filtration efficiency (CSF) of 640 ml.

[0037] (Example 1) A slurry was obtained by mixing 98 parts by weight of wood pulp with 2 parts by weight of polyvinyl alcohol fibers (VPW101×3 (fiber length 3 mm), manufactured by Kuraray Co., Ltd.). Using this slurry, a target basis weight of 20 g / m² was obtained. 2 The paper was made using a cylinder screen paper machine, dried using a Yankee dryer with the drum surface temperature set to 90°C, and then creped on the Yankee dryer with a doctor blade to obtain base paper for seeding tape. The physical properties of the manufactured base paper for seeding tape were measured using the measurement method described above. The results are shown in Table 1.

[0038] (Example 2) A base paper for seeding tape was obtained in the same manner as in Example 1, except that a slurry was obtained by mixing 99 parts by weight of wood pulp with 1 part by weight of polyvinyl alcohol fiber (VPW101 x 3, manufactured by Kuraray Co., Ltd.).

[0039] (Example 3) 83 parts by weight of wood pulp, 2 parts by weight of polyvinyl alcohol fiber (VPW101×3, manufactured by Kuraray Co., Ltd.), and 15 parts by weight of viscose rayon fiber (1.7 dtex × 5 mm) were mixed to obtain a slurry, and then the base paper for sowing tape was obtained in the same manner as in Example 1 except for this.

[0040] (Example 4) Target basis weight: 22 g / m 2 A base material for sowing tape was obtained in the same manner as in Example 3 except for this.

[0041] (Example 5) 84 parts by weight of wood pulp, 1 part by weight of polyvinyl alcohol fiber (VPW101×3, manufactured by Kuraray Co., Ltd.), and 15 parts by weight of viscose rayon fiber (1.7 dtex × 5 mm) were mixed to obtain a slurry, and then the base paper for sowing tape was obtained in the same manner as in Example 1 except for this.

[0042] (Example 6) A base paper for sowing tape was obtained in the same manner as in Example 1 except that the surface temperature of the drum of the Yankee dryer was set to 105°C.

[0043] (Example 7) <​​​​​​​​​​​​​​​​​​​​​​​ (Example 11) Target basis weight 15g / m 2 A seeding tape base material was obtained in the same manner as in Example 2, except for the aforementioned difference.

[0048] (Example 12) Target basis weight 15g / m 2 A seeding tape base material was obtained in the same manner as in Example 3, except for the aforementioned difference.

[0049] (Example 13) Target basis weight 15g / m 2 A seeding tape base material was obtained in the same manner as in Example 5, except for the aforementioned difference.

[0050] (Comparative Example 1) A slurry was obtained by mixing 96 parts by weight of wood pulp with 4 parts by weight of polyvinyl alcohol fiber (VPW101 x 3, manufactured by Kuraray Co., Ltd.). Using this slurry, a target basis weight of 20 g / m² was obtained. 2 The paper was made using a cylinder paper machine, dried using a Yankee dryer with the drum surface temperature set to 105°C, and then creped on the Yankee dryer with a doctor blade to obtain base paper for seeding tape.

[0051] (Comparative Example 2) A base paper for seeding tape was obtained in the same manner as in Comparative Example 1, except that a slurry was obtained by mixing 81 parts by weight of wood pulp, 4 parts by weight of polyvinyl alcohol fibers (VPW101 x 3, manufactured by Kuraray Co., Ltd.), and 15 parts by weight of viscose rayon fibers (1.7 dtex x 5 mm).

[0052] (Comparative Example 3) A base paper for seeding tape was obtained in the same manner as in Comparative Example 1, except that a slurry was obtained by mixing 91.5 parts by weight of wood pulp and 8.5 parts by weight of polyvinyl alcohol fiber (VPW101 x 3, manufactured by Kuraray Co., Ltd.).

[0053] (Comparative Example 4) A seeding tape base material was obtained in the same manner as in Comparative Example 1, except that a slurry was obtained by mixing 76.5 parts by weight of wood pulp, 8.5 parts by weight of polyvinyl alcohol fibers (VPW101 x 3, manufactured by Kuraray Co., Ltd.), and 15 parts by weight of viscose rayon fibers (1.7 dtex x 5 mm).

[0054] (Comparative Example 5) A base paper for seeding tape was obtained in the same manner as in Example 1, except that the surface temperature of the Yankee dryer drum was set to 120°C.

[0055] (Comparative Example 6) A base paper for seeding tape was obtained in the same manner as in Example 4, except that the surface temperature of the Yankee dryer drum was set to 120°C.

[0056] [Table 1]

[0057] Examples 1-13 showed a loosening time of 100 seconds or less, measured according to JIS P 4501 for toilet paper, and also exhibited an elongation of 10% or more and a tensile strength of 2.5 N / 15 mm or more. These results demonstrate that the seed-sowing tape has resistance to tearing by seeds, and also exhibits excellent water solubility and soil solubility, facilitating seed germination.

[0058] On the other hand, Comparative Examples 1-6 showed a loosening time of over 100 seconds, measured according to JIS P 4501 for toilet paper, indicating poor water solubility and suggesting they would not dissolve sufficiently in soil. Comparative Examples 1-4 had a polyvinyl alcohol fiber content greater than 4% by weight, while Comparative Examples 5-6 had a high surface temperature of 120°C on the Yankee dryer drum, which likely contributed to the longer loosening time. [Industrial applicability]

[0059] The seed-sowing tape base paper of the present invention has excellent water solubility and soil solubility, and is resistant to tearing of the seed-sowing tape base paper by seeds during processing into seed-sowing tape. Therefore, it can be suitably used as a seed-sowing tape with excellent seed germination and growth properties.

Claims

1. It consists of a wet-laid nonwoven fabric containing wood pulp and water-soluble polyvinyl alcohol fibers. A base paper for seeding tape, whose ease of unraveling, measured according to JIS P 4501 for toilet paper, is 100 seconds or less.

2. The seeding tape base paper according to claim 1, wherein the elongation in the MD direction is 10% or more.

3. The seeding tape base paper according to claim 1, wherein the tensile strength (N / 15mm) in the MD direction is 2.5 or more.

4. The seeding tape base paper according to claim 1, wherein the content of the water-soluble polyvinyl alcohol fibers is 1.0% by weight or more and less than 4.0% by weight.

5. The base paper for seeding tape according to claim 1, which contains rayon fibers.

6. The base paper for seeding tape according to claim 1, wherein the wet nonwoven fabric is dried using a Yankee dryer having a drum surface temperature of 85°C to 105°C.

7. A papermaking process to produce a wet nonwoven fabric by dispersing wood pulp and water-soluble polyvinyl alcohol fibers in water in an aqueous slurry, A method for manufacturing a base paper for seeding tape, comprising a drying step of drying the wet nonwoven fabric in a wet state using a Yankee dryer having a drum surface temperature of 85°C or more and 105°C or less.

8. A seeding tape comprising a seeding tape base paper according to any one of claims 1 to 6, with seeds attached to it.

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