Water-repellent products and manufacturing methods for water-repellent products

Abstract

To improve the peeling strength between a water-repellent fabric with a non-fluorine-based water-repelling agent adhered thereto and a resin component, in order to address the problem that the non-fluorine-based water-repelling agent is normally made to firmly adhere to the fabric using a crosslinking agent, however it is found that the fabric and the resin component are likely to peel from each other when the non-fluorine-based water-repelling agent is used in the water repellent product where the resin component are adhered to the fabric.SOLUTION: A crosslinking agent believed as a common sense is not used, and thereby the peeling strength is improved. In other words, in the present invention, the crosslinking agent for chemically bonding the non-fluorine-based water-repelling agent and the fibers is not substantially contained, in a water repellent product comprising the water-repellent fabric where the non-fluorine-based water-repelling agent is made to adhere to the fabric of fibers and the resin component pasted on the water repellent fabric.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a water-repellent product including a water-repellent fabric having a non-fluorinated water-repellent agent attached to a fiber fabric and a resin component attached to the water-repellent fabric, and a method for manufacturing the water-repellent product. An example of the water-repellent product is a zipper chain having a pair of meshed zipper stringers. [Background technology]

[0002] A slide fastener basically comprises a pair of fastener stringers and a slider that opens and closes the pair of fastener stringers. One example of a fastener stringer is one that comprises a fiber tape and an element row fixed to one side edge of the tape, and in the case of a zipper-opening product, it also comprises a resin reinforcing film attached to the longitudinal end of the tape (Patent Document 1).

[0003] Various water repellents are used to make clothing fabrics water repellent. In the field of slide fasteners, fluorine-based water repellents are widely used as the most effective water repellent agents for imparting water repellency. However, in recent years, with the rise in environmental awareness in society as a whole, there is a demand to prevent environmental pollution as much as possible, and the apparel industry is also being called upon to manufacture products while regulating chemical substances that have a negative impact on the environment. Fluorine compounds are one of the chemical substances that should be regulated. From this perspective, it is being called upon to use either fluorine-based or non-fluorine-based water repellents for zipper chains depending on the application. An example of a zipper chain to which a non-fluorine-based water repellent is attached is disclosed in Patent Document 2. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Jikko No. 63-37845 [Patent Document 2] Japanese Patent Application Laid-Open No. 2006-328624 Summary of the Invention [Problem to be solved by the invention]

[0005] There is a test (hereinafter referred to as "water repellency evaluation test") to check the water repellency of zipper chains. It is desirable to conduct the water repellency evaluation test on zipper chains before washing and after washing a set number of times to ensure that high water repellency is maintained even after washing.

[0006] In addition to the water repellency evaluation test, there is also a test to check the adhesive strength between the reinforcing film and tape. High adhesive strength means that the reinforcing film is difficult to peel off from the tape (high peel strength). Therefore, the adhesive strength test is conducted using a peel strength test, in which the reinforcing film and tape are forcibly peeled off and the strength at the time of peeling is measured. The reason for adopting the peel strength test is that the reinforcing film of a zipper chain with a non-fluorine-based water repellent agent is more likely to peel off from the tape than a zipper chain with a fluorine-based water repellent agent. Incidentally, if the reinforcing film is transparent, peeling will cause the reinforcing film to become cloudy and unattractive.

[0007] The present invention was created in consideration of the above-mentioned circumstances, and its purpose is to improve the peel strength between a tape (water-repellent fabric) to which a non-fluorine-based water repellent agent is attached and a reinforcing film (plastic part). [Means for solving the problem]

[0008] The water-repellent product of the present invention is based on the premise that it comprises a water-repellent fabric having a non-fluorinated water-repellent agent adhered to the fabric, and a resin part attached to the water-repellent fabric, and is characterized in that it does not substantially contain a crosslinking agent for chemically bonding the non-fluorinated water-repellent agent to the fabric.

[0009] Furthermore, the method for producing a water-repellent product of the present invention is a method for producing a water-repellent product comprising a water-repellent fabric having a non-fluorine-based water-repellent agent adhered to a fiber fabric and a resin part attached to the water-repellent fabric, and is characterized in that the water-repellent treatment is carried out substantially without containing a crosslinking agent for chemically bonding the non-fluorine-based water-repellent agent to the fiber.

[0010] "Substantially free of crosslinking agents" and "substantially free of crosslinking agents" mean that even if the water-repellent product contains a crosslinking agent, the amount of crosslinking agent is so small that it is not thought to be intended to chemically bond the non-fluorinated water-repellent agent to the fiber. Expressed numerically, this means that the water-repellent treatment is carried out with an aqueous solution of a crosslinking agent concentration such that the crosslinking agent contained in the water-repellent product is less than 0.1% of the mass of the water-repellent product.

[0011] The mass of a water-repellent product is the mass of the entire portion that has been subjected to the water-repellent treatment (in other words, the entire portion that has actually been immersed in an aqueous solution containing a water-repellent agent). Therefore, for example, if a product has metal parts or the like attached in addition to the water-repellent fabric and resin parts, common technical knowledge would dictate that the water-repellent treatment be performed before the metal parts or the like are attached, and the portion excluding the metal parts or the like is the water-repellent product referred to in this invention, and the mass of the portion excluding the metal parts or the like is the mass of the water-repellent product.

[0012] The water-repellent product is a fastener chain in which a pair of fastener stringers are meshed at opposing side edges, and the fastener stringer includes a tape as a water-repellent fabric and an element row fixed to and meshed with the opposing side edges of the tape.

[0013] When the water-repellent product is a zipper chain that uses coiled resin monofilaments as its element rows, the mass of the water-repellent product refers to the mass of the zipper chain. The mass of the zipper chain also refers to the mass of a pair of zipper stringers. Since zipper stringers are manufactured by applying a water-repellent treatment to a tape with its element rows sewn onto it, the mass of the zipper stringer is the sum of the mass of the tape, the mass of the element rows (including the mass of the core strings within the element rows), and the mass of the sewing thread used to sew the element rows onto the tape. Therefore, the mass of the slider, stopper, and opening device attached to the zipper stringer after the water-repellent treatment is not included in the mass of the water-repellent product (zipper chain).

[0014] In the case of a fastener chain, the water-repellent product may be provided with any other resin parts in addition to the tape and element row, but examples include the following: That is, the water-repellent product is a fastener chain that includes, in addition to the tape and the element row, a reinforcing film as a resin part attached to the end of the tape in the longitudinal direction.

[0015] The method for producing the water-repellent product of the present invention does not require any specific water-repellent treatment, but an example is as follows. That is, the method for producing a water-repellent product involves immersing a fabric in an aqueous solution that uses at least a non-fluorinated water-repellent agent as a solute, and adjusting the concentration of the crosslinking agent in the aqueous solution to a concentration that is substantially free of the crosslinking agent. [Effects of the Invention]

[0016] According to the water-repellent product and the method for producing the water-repellent product of the present invention, the peel strength between the water-repellent fabric and the resin part is not affected by the crosslinking agent, so that the peel strength between the fiber and the resin part can be improved. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a graph showing the relationship between the peel strength of a reinforcing film and the concentration of a water repellent agent. [Figure 2] 1 is a graph showing the relationship between the peel strength of a reinforcing film and the concentration of a crosslinking agent. [Figure 3] 1 is a graph showing the relationship between the peel strength of a reinforcing film and the concentrations of a water repellent agent and a crosslinking agent, etc. [Figure 4] 1 is a graph showing the relationship between the peel strength of a reinforcing film and the degree of progress of a crosslinking reaction. [Figure 5] FIG. 2 is an explanatory diagram showing an example of a slide fastener. DETAILED DESCRIPTION OF THE INVENTION

[0018] A fastener chain will be described below as a water-repellent product according to a first embodiment of the present invention, but the slide fastener that is the premise of the fastener chain will be described first.

[0019] As shown in Fig. 5, the slide fastener 1 comprises a pair of belt-shaped fastener stringers 2, 2 facing each other in the width direction of the belt, a slider (not shown) that can open and close the pair of fastener stringers 2, 2 at their facing side edges, a stopper (not shown) that stops the movement of the slider at the end of the pair of fastener stringers 2, 2 in the closing direction, and an opening device 3 that can connect and disconnect the pair of fastener stringers 2, 2 at the end of the pair of fastener stringers 2, 2 in the opening direction. The open state of the slide fastener 1 is a state in which the pair of fastener stringers 2, 2 are separated at their facing side edges, and the closed state of the slide fastener 1 is a state in which the pair of fastener stringers 2, 2 are interlocked at their facing side edges. A pair of fastener stringers 2, 2 in this interlocked state is called a fastener chain.

[0020] The fastener stringer 2 comprises a strip-shaped tape 4 extending in a straight line, an element row 5 fixed along one side edge of the tape 4, and a reinforcing film 6 attached to the end of each tape 4 in the longitudinal direction (the direction in which the pair of fastener stringers 2, 2 close). As described above, the fastener stringer 2 is strip-shaped with the element row 5 fixed thereto, and is therefore long and narrow. Therefore, the "longitudinal direction" mentioned above refers to the long direction of the fastener stringer 2, and the "width direction" refers to the narrow direction (shorter direction) of the fastener stringer 2.

[0021] The tape 4 is strip-shaped and is formed by assembling fibers. Therefore, the tape 4 is made of fibers. A specific example of the tape 4 is a woven fabric or a knitted fabric.

[0022] The reinforcing film 6 is thinner than the tape 4 and is attached to at least one of the front and back surfaces of the tape 4. The opening 3 is fixed by sandwiching the reinforcing film 6 and the tape 4 between them. The reinforcing film 6 is a resin part, and a specific example of the material is a thermoplastic resin, and a more specific example of the material is nylon. The reinforcing film 6 is attached to the tape 4 by, for example, heat welding or adhesive. An example of an adhesive is polyester.

[0023] The element row 5 is formed, for example, by a monofilament consisting of elements continuous in the longitudinal direction along the opposing side edges of the tape 4. The monofilament is, for example, curved into a coil and made of resin. A core cord is inserted inside the monofilament. The monofilament is then fixed to one surface of the tape 4 in the thickness direction with sewing thread. In the fastener chain state, the pair of tapes 4, 4 face each other with a gap in the width direction, and the pair of element rows 5, 5 are in a state of meshing with the pair of tapes 4, 4 on one surface in the thickness direction. The meshing state refers to a state in which elements of one element row 5 are meshed with elements of the other element row 5.

[0024] The threads, core cords, and sewing threads described above are made of, for example, chemical fibers, natural fibers, or a combination thereof. More specifically, examples of chemical fibers include synthetic fibers such as polyester, polypropylene, polyamide, acrylic, vinylon, aramid, acetate, and triacetate. Examples of natural fibers include cotton, wool, and silk.

[0025] When manufacturing the fastener stringer 2, the following steps are performed in sequence: a fixing step in which the element row 5 is fixed to the tape 4 with sewing thread, a water-repellent treatment step in which a non-fluorine-based water-repellent agent is applied to the tape 4, and an attachment step in which a reinforcing film 6 is attached to the tape 4. Before the water-repellent treatment step, the pair of fastener stringers 2, 2 are engaged with each other by the element row 5, but the reinforcing film 6 has not yet been attached, and therefore such a pair of fastener stringers 2, 2 is referred to as an "unfinished fastener chain."

[0026] The water-repellent treatment process involves passing an unfinished fastener chain through a liquid containing a water-repellent agent as a solute (for example, an aqueous solution containing water as a solvent), followed by drying and heat treatment. This water-repellent treatment process causes the water-repellent agent to adhere to the fibers of the unfinished fastener chain. The water repellent is a non-fluorine-based agent, more specifically a hydrocarbon-based agent (a compound having a hydrocarbon group, such as a paraffin-based agent) or a silicone-based agent. An example of a hydrocarbon-based water repellent is one in which the main chain is a polyurethane group and the side chain is a hydrocarbon group. The water repellent does not contain a cross-linking agent for chemically bonding the non-fluorinated water repellent to the fiber (tape 4). Examples of cross-linking agents include methylol melamine and compounds having one or more isocyanate groups or blocked isocyanate groups.

[0027] After the water-repellent treatment step, a reinforcing film 6 is applied to the unfinished fastener chain, it is cut to the desired length, and furthermore, an opening 3, a slider, etc. are attached, and thus the slide fastener 1 is completed.

[0028] The opening device 3 is commonly called a separable insert, and includes an insert pin 31 fixed to opposing side edges of one fastener stringer 2, a box pin 32 fixed to opposing side edges of the other fastener stringer 2, and a box 33 fixed to the opposing side edges of the other fastener stringer 2 in a form continuous with the box pin 32 and which can be connected to and disconnected from the insert pin 31.

[0029] The insert pin 31 extends in the longitudinal direction away from the element row 5, and is fixed in place so as to cover one tape 4 having a reinforcing film 6 fixed on both sides thereof from both sides and the other tape 4 side. Like the insert pin 31, the box pin 32 also extends longitudinally away from the element row 5, and is fixed in place by covering the other tape 4, which has reinforcing films 6 fixed to its front and back, from its front and back and from the side of one of the tapes 4. The box 33 covers the other tape 4 from the front, back and longitudinal ends thereof, and protrudes toward one tape 4. The box 33 is continuous with the longitudinal end of the box pin 32 (it is one piece with the box pin 32), and has a hole 33a through which the longitudinal end of the insert pin 31 can be inserted and removed, and a slit 33b through which the longitudinal end of one tape 4 can be inserted and removed. The slit 33b is in communication with the hole 33a.

[0030] The inventors arrived at the present invention through the following process. It is known that non-fluorine-based water repellents have lower water repellency than fluorine-based water repellents and are less likely to adhere (have poor adhesion) to the fabric (fiber) of a zipper stringer. To minimize the loss of water repellency after repeated washing of textile products to which a non-fluorine-based water repellent has been applied, the adhesion between the fiber and the non-fluorine-based water repellent is improved, thereby preventing the non-fluorine-based water repellent from falling off the fiber after washing. As a specific measure, as disclosed in Patent Document 2, it is common knowledge to use a crosslinking agent to improve the adhesion between the non-fluorine-based water repellent and the fiber (to strengthen the chemical bond). More specifically, Patent Document 2 describes the use of an aqueous solution containing a non-fluorine-based water repellent and a crosslinking agent as solutes in the water repellent treatment process in order to adhere the non-fluorine-based water repellent to the fiber.

[0031] Therefore, the present inventors manufactured a slide fastener by applying the same water-repellent treatment process as in Patent Document 2 (using an aqueous solution containing a non-fluorine-based water-repellent agent and a crosslinking agent as solutes), and then repeatedly washed the fastener chain and then performed a water-repellent test. As a result, as described in the section on problems to be solved by the invention, it was found that the reinforcing film of a fastener chain to which a non-fluorine-based water-repellent agent was attached was more likely to peel off from the tape than a fastener chain to which a fluorine-based water-repellent agent was attached.

[0032] The inventors speculated that either the non-fluorinated water repellent or the crosslinking agent might affect the peel strength. Therefore, two types of aqueous solutions were prepared, and evaluation samples prepared using each aqueous solution were used to evaluate the relationship between the solute concentration and the peel strength through a peel strength test. The first type of aqueous solution was used for testing whether the non-fluorinated water repellent had an effect, and contained a non-fluorinated water repellent as a solute but no crosslinking agent (hereinafter referred to as a "crosslinking agent-free aqueous solution"). The second type of aqueous solution was used for testing whether the crosslinking agent had an effect, and contained no non-fluorinated water repellent as a solute but a crosslinking agent (hereinafter referred to as a "crosslinking agent-containing aqueous solution"). The two types of aqueous solutions were prepared with different solute concentrations ranging from 1.0 to 10.0 mass%. A fastener stringer was immersed in each of these aqueous solutions, and the solute was attached to the fastener stringer by drying. Then, a reinforcing film was attached to the tape of the fastener stringer to prepare an evaluation sample.

[0033] Using this evaluation sample, a peel strength test was conducted before washing, and the graphs in Figures 1 and 2 were created from the test results. In the graphs in Figures 1 and 2, the vertical axis parameter is peel strength (unit: N / cm), and the horizontal axis parameter is solute concentration (unit: mass %). The aqueous solution is water except for the water repellent and crosslinking agent. The solute concentration is calculated assuming the mass of the aqueous solution is 100%. The graph in Figure 1 shows the peel strength test results for evaluation samples of aqueous solutions that do not contain a crosslinking agent. The concentration of the non-fluorinated water repellent agent was varied within the range of 1 to 10 mass%, but even with higher concentrations, the peel strength remained slightly lower than 15 N / cm, showing little change. The graph in Figure 2 shows the results of peel strength tests on evaluation samples of aqueous solutions containing a crosslinking agent. The crosslinking agent concentration was varied in the range of 0.25 to 5% by mass, but even with higher concentrations, the peel strength remained at approximately 15 N / cm or higher, showing little decrease. 1 and 2 show that the peel strength does not decrease significantly even when the concentration of the non-fluorinated water repellent agent alone or the crosslinking agent alone increases. Therefore, the inventors speculated that the peel strength might decrease when the non-fluorinated water repellent agent and the crosslinking agent are used in combination.

[0034] The following test was conducted to investigate the effect of the blending ratio of non-fluorinated water repellent and crosslinker on peel strength. Aqueous solutions were prepared in which the concentration of the non-fluorinated water repellent was varied in 0.5 mass% increments from 2.0 to 4.0 mass%, the concentration of the crosslinker was varied in 0.25 mass% increments from 0 to 1.0 mass%, and the rest was water. As a comparative example, an aqueous solution containing a fluorinated water repellent as the solute (aqueous solution without a crosslinker) was also prepared. Fastener stringers were immersed in these aqueous solutions and dried to adhere the solute to the fastener stringer. A reinforcing film was then attached to the fastener stringer tape to create evaluation samples. These evaluation samples were subjected to a peel strength test before washing, and Table 1 and Figure 3 were compiled from the test results.

[0035] [Table 1]

[0036] The peel strength values for the evaluation samples in Table 1 are the average values for 10 samples. Incidentally, Table 1 and Figure 3 show the test results for evaluation samples that used a non-fluorinated water repellent, but do not show the test results for evaluation samples that used a fluorinated water repellent. However, because the peel strength of the evaluation sample that used a fluorinated water repellent was approximately 15 (N / cm), the pass / fail criterion in Table 1 was set to 15 (N / cm), and the position of 15 (N / cm) is indicated by a dashed line in Figure 3. The graph in Figure 3 shows that, for a given concentration of non-fluorinated water repellent, the peel strength tends to decrease as the concentration of crosslinker increases. This tendency is apparent regardless of the concentration of the non-fluorinated water repellent. Furthermore, it can be seen that the peel strength of approximately 15 (N / cm) equivalent to that of a fluorinated water repellent is exhibited when an aqueous solution with a crosslinker concentration of 0% by mass is used. From these results, the inventors speculated that it may be better not to use a crosslinker when using a non-fluorinated water repellent, and that the peel strength decreases as the crosslinking reaction progresses.

[0037] Therefore, we decided to evaluate the relationship between the degree of reaction progress of the crosslinking agent and peel strength through a peel strength test. A type of aqueous solution containing a crosslinking agent and a non-fluorinated water repellent agent as solutes was prepared. A fastener stringer was then immersed in the prepared solution, and the solute was attached to the fastener stringer by drying, creating an evaluation sample. The degree of reaction progress was also varied by changing the drying time and temperature. There were 15 evaluation samples, and three drying times were used: 5, 7, and 9 hours. For each drying time, the drying temperature was varied in 5-degree increments from 110 to 130°C.

[0038] A peel strength test was conducted using this evaluation sample before washing. After the peel strength test, the evaluation sample was immersed in an aqueous solution using acetone as the solute and subjected to ultrasound for 30 minutes to extract the crosslinker component contained in the evaluation sample. This crosslinker component was unreacted crosslinker, and the mass of the unreacted crosslinker was determined using GC / MS (gas chromatography / mass spectrometry). The degree of reaction progress of the crosslinker was calculated using the following formulas 1 and 2 based on the mass of the unreacted crosslinker extracted from the evaluation sample and the mass of the evaluation sample. Formula 1 (Unreacted crosslinker weight percentage wt%) = (Unreacted crosslinker weight mg) / (Zipper weight kg) × 100 Formula 2 (degree of reaction progress) = 1 / (weight ratio of unreacted crosslinker wt%) The following Table 2 and the graph in Figure 4 were created based on the calculation results using this formula.

[0039] [Table 2]

[0040] The circled numbers in Table 2 and Figure 4 indicate the same evaluation sample, and in Figure 4, the circled numbers for each sample are placed near the black circles indicating the numerical values. In Table 2, "unreacted material" refers to the weight percentage of unreacted crosslinker. The graph in Figure 4 has peel strength (unit: N / cm) on the vertical axis and reaction progress on the horizontal axis. Table 2 shows that, with the exception of evaluation sample 15, the mass percentage of unreacted crosslinked material decreases as the drying time increases, and the mass percentage of unreacted crosslinker decreases as the drying temperature increases. Longer drying times and higher drying temperatures indicate the progress of the crosslinking reaction. Furthermore, the graph in Figure 4 shows that peel strength decreases as the crosslinking reaction progresses, proving the inventors' speculation based on Table 1 and Figure 3 to be correct.

[0041] The fastener chain (water-repellent product) of the first embodiment of the present invention is manufactured using an aqueous solution (aqueous solution containing a non-fluorine-based water repellent agent as a solute) that does not substantially contain a crosslinking agent in the water-repellent treatment step of the manufacturing process. In other words, the water-repellent treatment is performed without substantially containing a crosslinking agent that chemically bonds the non-fluorine-based water repellent agent and the fiber.

[0042] The terms "substantially free of crosslinking agents in the water-repellent treatment process during the manufacturing process" and "water-repellent treatment is performed substantially free of crosslinking agents for chemically bonding the non-fluorinated water-repellent agent to the fibers" have the same meaning as those described in the "Means for Solving the Problems" section. Even if a crosslinking agent is contained in the zipper chain, the amount of crosslinking agent is so small that it is not assumed that the crosslinking agent is intended to chemically bond the non-fluorinated water-repellent agent to the fibers. Expressed numerically, this means that the water-repellent treatment is performed using an aqueous solution with a crosslinking agent concentration of less than 0.1% relative to the mass of the water-repellent product. Furthermore, based on the results in Table 1, this means that the water-repellent treatment is performed using an aqueous solution with a crosslinking agent concentration of less than 0.25%. In other words, "substantially free of crosslinking agents" means that no crosslinking agents are found even after component analysis, or that even if they are found, the crosslinking agent is used in the water-repellent treatment process at a concentration in the aqueous solution of less than 0.1% relative to the mass of the zipper chain. This amount is not enough to intentionally improve the adhesive strength between the tape and the non-fluorinated water repellent agent through a crosslinking reaction. This value is rounded to the nearest digit.

[0043] As described in the section on "Means for Solving the Problems," the mass of a fastener chain is the mass of a pair of fastener stringers. The mass of a fastener stringer is the sum of the mass of the tape, the mass of the element row (including the mass of the core cords in the element row), and the mass of the sewing thread that sews the element row to the tape, and does not include the mass of the slider, stopper, or opening.

[0044] The present invention is not limited to the above-described embodiment, and can be modified as appropriate within the scope of the invention.

[0045] For example, in the above embodiment, the water-repellent product is a zipper chain, but the present invention is not limited to this. A zipper chain tape is essentially a fabric made by weaving or knitting threads. Given that the technical concept of the present invention can be applied to zipper chain tape, it is clear that the present invention can also be applied to ordinary fabrics in general, such as woven fabrics and knitted fabrics. To give a specific application example, it is clear that the technical concept of the present invention is effective even when a fabric treated with a non-fluorine-based water repellent agent for water repellency is bonded to another fabric via a resin part (including an adhesive layer, a resin film, etc.). In other words, by applying the technical concept of the present invention, a decrease in the peel strength between the fabric treated with a non-fluorine-based water repellent agent for water repellency and the adhesive resin part (including an adhesive layer, a resin film, etc.) is suppressed, and as a result, the fabric treated with a non-fluorine-based water repellent agent for water repellency can be bonded to the other fabric without a decrease in bonding strength. Furthermore, it goes without saying that the present invention is also effective when a zipper chain tape treated with a non-fluorine-based water repellent agent and a garment fabric treated with a non-fluorine-based water repellent agent are bonded together via a resin part (including an adhesive layer, a resin film, etc.). [Explanation of symbols]

[0046] 1 slide fastener 2 zipper stringers 3 Opening tool 31 Butterfly pin 32 box bar 33 boxes 33a hole 33b Slit 4 Tape 5 Element Column 6 Reinforcement film

Claims

1. A water-repellent product comprising a water-repellent fabric having a non-fluorine-based water-repellent agent attached to a textile fabric, and a resin part attached to the water-repellent fabric, The water-repellent product is a zipper chain in which a pair of zipper stringers (2, 2) are meshed at opposing side edges, The fastener stringer (2) comprises a tape (4) as a water-repellent fabric and an element row (5) fixed to and engaged with opposing side edges of the tape (4), A water-repellent product characterized by being substantially free of a crosslinking agent for chemically bonding a non-fluorine-based water repellent agent to fibers.

2. The water-repellent product according to claim 1 is a fastener chain having a reinforcing film (6) as the resin part attached to the longitudinal end of the tape (4).

3. A method for producing a water-repellent product comprising a water-repellent fabric having a non-fluorine-based water-repellent agent attached to a textile fabric, and a resin part attached to the water-repellent fabric, comprising: The water-repellent product is a zipper chain in which a pair of zipper stringers (2) are meshed at opposing side edges, The fastener stringer (2) comprises a tape (4) as a water-repellent fabric and an element row (5) fixed to and engaged with opposing side edges of the tape (4), A method for producing a water-repellent product, characterized in that the water-repellent treatment is carried out without substantially containing a crosslinking agent for chemically bonding the non-fluorine-based water-repellent agent to the fiber.

4. The water-repellent product according to claim 3 is a fastener chain having a reinforcing film (6) as the resin part attached to the longitudinal end of the tape (4).

5. 5. The method for producing a water-repellent product according to claim 3 or 4, wherein when the fabric is immersed in an aqueous solution containing at least a non-fluorinated water repellent agent as a solute, the concentration of the crosslinking agent in the aqueous solution is such that the crosslinking agent is substantially free of the crosslinking agent.

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