JP2008002009A - Backing for floor mat and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a backing nonwoven fabric having snagging properties for preventing slipping movement of a floor mat in an automobile, and also having design. <P>SOLUTION: The backing for a floor mat has the design and excellent snagging properties, wherein a nonwoven fabric 3 is obtained by needling a staple fiber web of a thermoplastic fiber having a weight range of 200-800 g/m<SP>2</SP>so that the fibers are entangled with each other, is formed with protruded loop naps in a ridge shape, a lattice shape or a zigzag shape on one surface of the nonwoven fabric, and the tips of the protruded raised fibers are melted to pattern one side of the nonwoven fabric 3 with the shape of the ridge, lattice or zigzag by melted lumps 8, and on the patterned one side, the nonwoven fabric has a static friction stress of ≥6.5 N. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor mat backing that prevents sliding movement of a floor mat that is laid in order to prevent the floor from being soiled by dirt, sand, mud, etc. adhering to shoes in an automobile, and a method for manufacturing the same. is there.

Conventionally, floor mats are laid in an automobile to prevent soil, sand, mud, or gravel attached to shoes from adhering to the floor and soiling the floor. Conventionally, tuft carpets and napped carpets were generally used for this floor mat, but because it is dangerous to slip on the floor carpet, the back surface is covered with resin, rubber, etc. to make it uneven, To cope with this problem, it was necessary to attach a protrusion or to use a hook-and-loop fastener. (For example, see Patent Documents 1, 2, and 3)
However, in recent years, attempts have been made to create a molten mass on the surface of the nonwoven fabric to impart snagging properties. For example, a thermoplastic sheet is sandwiched between a napped carpet material and a needle punched nonwoven fabric, and the surface of the needle punched nonwoven fabric on the back surface is gas-filled. The surface fibers are partially melted by a direct flame by hair burning, and a part of the surface fibers are agglomerated to increase the mat's anti-slip effect, so that a mud wiping mat (for example, see Patent Document 4) or a fiber web shearing treatment A floor mat backing (see, for example, Patent Document 5) in which a resin mass having an outer diameter larger than the fiber is formed at the fiber tip by heat-treating the surface has been proposed.
JP-A-5-269005 Japanese Patent Laid-Open No. 10-95264 Japanese Patent Laid-Open No. 2000-300419 Utility Model Registration No. 3028700 JP 2002-4163 A

  However, the floor mat is bonded to the nonwoven fabric of the entangled thermoplastic fiber backing on the back surface of the carpet, or the surface of the nonwoven fabric before being attached to the back surface is 30 ° C. higher than the melting temperature of the thermoplastic fiber. Even though a molten mass of resin is formed on the surface by exposure to temperature and a certain amount of snagging (anti-slip performance) is obtained, the surface of the nonwoven fabric can only be obtained and has a sufficient design. Snugging performance has not been achieved.

  The present invention addresses the actual situation as described above, finds the arrangement form of the molten lump and wrinkle friction stress to obtain more sufficient snuggling properties, the design property patterned with the molten lump, and the floor mat excellent in design properties The object is to provide a backing and a method for producing the same.

That is, one of the features of the present invention that meets the above-mentioned purpose is that a short fiber web made of thermoplastic fibers having a basis weight range of 200 to 800 g / m ² that is uniformly mixed and opened is needling. It consists of a nonwoven fabric in which constituent fibers are entangled with each other, and the nonwoven fabric is further formed with looped napping, lattice-like or zigzag-patterned loop raising on one side, and the tip of the protruding raised fiber is melted The melted lump has one side of the nonwoven fabric patterned in the shape of a lattice, lattice or zigzag, and the nonwoven fabric has a wrinkle friction stress of 6.5 N or more on the surface patterned with the molten lump. On the floor mat backing.

A second aspect of the present invention relates to a method for manufacturing the floor mat backing, wherein the uniformly mixed and opened staple fiber web made of thermoplastic fibers having a basis weight range of 200 to 800 g / m ² is subjected to pre-needle processing. After the entangled fibers are entangled with each other, the tangled short fibers are passed through a cord machine and processed with a fork needle to project a loop, bristled, or zigzag pattern of raised bristles on one side. Next, the wound nonwoven fabric is pulled out from the driving roll, and the raised surface is directly exposed to the flame at an angle of 25 to 65 ° obliquely upward and downward from the lower direction of the drawing at a temperature 30 ° or more higher than the melting temperature of the thermoplastic fiber. The melted fiber tip is melted, and the formed molten lump is patterned on the nonwoven fabric surface in the form of ridges, lattices or zigzags, and the crease frictional stress of the patterned nonwoven fabric is 6.5N. Wherein the allowed to form on.

  Here, the thermoplastic fibers constituting the fiber web preferably have a fineness in the range of 1.0 to 50.0 dtex, and the loop height of the looped brushed material processed with the fork needles is that of the nonwoven fabric. It is desirable that the thickness be 25 to 65% of the thickness.

  The backing material of the fork needle of the present invention effectively controls the formation of the molten mass compared to the non-woven fabric of the flat surface, and the frictional stress is made to be 6.5 N or more, so that the surface layer on the back side of the floor mat is not damaged. It is possible to provide a combination performance and a re-molding performance, ensure a snuggling property and effectively prevent the movement of the floor mat in the automobile.

  Moreover, the manufacturing method of Claim 2 can manufacture the backing material which is excellent in the snuggling property as well as the design property by controlling the production of the molten lump efficiently and the floor mat backing material.

  Hereinafter, specific embodiments of the present invention will be described in detail.

  As described above, the floor mat backing of the present invention is composed of a short fiber nonwoven fabric excellent in design and snuggling properties. Here, the constituent fiber is a thermoplastic fiber, and may be 100% thermoplastic fiber, but may be a mixture of a heat-adhesive fiber or a heat-adhesive conjugate fiber, and may also be an original fiber, a dyed fiber, etc. May be included.

  Examples of the thermoplastic fiber include normal polyester fiber, polyethylene fiber, polypropylene fiber, polyamide fiber, and aromatic polyamide fiber. Examples of the thermoadhesive fiber include the polyester fiber, polyethylene fiber, A core-sheath type or side-by-side type composite fiber composed of a high melting point component and a low melting point component of any one of a polypropylene fiber and a polyamide fiber can be mentioned, and a representative example is a polyester fiber (melting point: about 250 to 270 ° C.) Examples include composite fibers of low-melting polyester fibers (melting point: about 100 to 200 ° C.), polyester / nylon composite fibers having different melting points, polypropylene / polyethylene composite fibers, polypropylene / polyethylene composite fibers, and the like.

  Each of these constituent fibers preferably has a fineness range of 1.0 to 50.0 dtex, and if it is less than 1.0 dtex, the fineness is so thin that the molten lump when the surface fibers are melt-treated after dredging becomes small. In addition, it is not preferable because the engagement effect is difficult to occur, and if it exceeds 50.0 dtex, the fiber fineness becomes thick, so the molten mass when the surface fiber is melt-processed is too large, the molten form is poor, and the design is inferior. Since the engagement effect cannot be obtained, it is not preferable.

On the other hand, the basis area of the fiber web constituting the nonwoven fabric is an important factor in the present invention. When the basis weight is 200 g / m ² or less, it becomes transparent during the subsequent fork needle processing, and is more uneven in the formation of the molten mass. it is not preferable because the objects, also becomes thicker exceeds 800 g / m ^2, since the processing is difficult to design property in the fork needled becomes poor, the basis weight range is preferably 200 to 800 g / m ^2, and useful It is.

In producing the floor mat backing of the present invention, one or two or more thermoplastic fibers are uniformly mixed and opened by the fiber configuration as described above to form a fiber web having a basis weight range of 200 to 800 g / m ^2. By applying pre-needle processing to this, a non-woven fabric that becomes a base material is entangled between the fibers, and this non-woven fabric is passed through a cord machine and processed with a fork needle on one side to form a saddle shape, lattice shape or zigzag shape It is wound up as a brushed nonwoven fabric with a pattern.

  FIG. 1 (a) shows the process of passing the nonwoven fabric through a cord machine. The fork needle 1 is moved up and down with respect to the bed plate 2 as an assembly of slit plates while feeding the nonwoven fabric in the direction of the arrow. ) Is formed on the surface of the nonwoven fabric 3 as shown in FIG. At this time, depending on the arrangement of the fork needles, various patterns such as a saddle shape, a lattice shape or a zigzag shape are formed.

  In addition, when processing with a fork needle, the height (depth) of the obtained loop is 25 to 65% with respect to the nonwoven fabric fiber layer thickness, and the contrast of the design is good. Even if the molten lump treatment after dredging is not effected, it is not preferable because the design is poor because it is not different from the normal flat treatment, and if it exceeds 65%, the waist of the loop in fork needle processing becomes weak. This is not preferable because the design effect is poor and the snagging effect is also poor.

  The napped nonwoven fabric obtained as described above is then subjected to melt lump treatment on the surface of the surface loop lapping to create a backing material for the floor mat of the present invention. The tip of the thermoplastic fiber on the nonwoven fabric surface is directly exposed to a flame and melted by using a surface heating machine such as a gas sinter. It may be possible by blowing similar hot air instead of flame. In this case, the melting state and the melting depth can be achieved by adjusting the heating temperature, the heating rate, and the distance from the heat source.

  The heating temperature is preferably exposed to a temperature 30 ° C. or higher than the melting temperature of the thermoplastic fiber, and even if the same heating temperature is adopted by adjusting the heating temperature, the molten mass formed on the nonwoven fabric surface The area ratio can be adjusted. In particular, when exposed to a flame, the angle of the flame exposed to the nonwoven fabric surface is also important. As shown in FIG. 2, the brushed nonwoven fabric 6 wound in advance is pulled out from the drive roll 5, and at this time the flame direction 7 is set to the pulling direction. It is suitable and effective to expose to a flame when the angle θ from the bottom to the top oblique direction is in the range of 25 to 65 °. Symmetrically, it is possible to expose at a similar angle from the upper side to the lower diagonal direction with respect to the drawing direction, depending on the arrangement.

  If the flame angle θ is less than 25 °, it is not preferable because the flame directly hits the non-woven fabric surface and there is no direction in which the flame escapes, making it impossible to adjust the speed, distance, and gas pressure, and if the flame angle θ exceeds 65 ° This is not preferable because the amount of flame hitting the nonwoven fabric is reduced and the processing efficiency is lowered.

  In addition, since the flame contact time to the nonwoven fabric during heating may melt to the inside of the nonwoven fabric, a short time is preferable for heating only the vicinity of the nonwoven fabric surface, and the angle of the flame complements it. Is.

Hereinafter, an example of preferable conditions for performing gas hair burning will be described. Gas pressure is 100 to 150 kg / cm ² , processing speed is 10 to 15 m / min, flame distance is 1.5 to 3.0 cm, and flame length. The length is 4 to 5 mm, and the flame hole arrangement is a staggered arrangement. However, it is not necessarily bound by this condition.

  Thus, as described above, a floor mat backing having a lump-like, lattice-like or zigzag-shaped molten mass 8 having an outer diameter larger than the diameter of the raised fiber on the surface of the nonwoven fabric 3 shown in FIG. However, in the backing material of the floor mat of the present invention, not only the molten lump formation but also the wrinkle friction stress of the nonwoven fabric on the forming side surface is essential and is required to be 6.5 N or more.

  If the wrinkle friction stress of the surface in contact with the needle punch carpet of a general vehicle floor is less than 6.5 N, it is easily displaced from the mat surface or easily peeled off. For this reason, in order to be effective as a backing material for a floor mat, it is important to have a scissors friction stress of 6.5 N or more, thereby preventing displacement and peeling from the mat surface.

  Examples of the present invention will be described below.

First, prior to proceeding with each example and comparative example, samples 1 to 7 used for each example and comparative example were prepared.
(Sample 1)
60% by mass of a polyester fiber (melting point: 260 ° C.) with a fineness of 7.8 dtex and a fiber length of 64 mm, and a black original polyester fiber (melting point: 260 ° C.) with a fineness of 17.0 dtex and a fiber length of 76 mm Next, carding is performed to obtain a fiber layer (average fineness: 11.48 dtex) with a basis weight of about 400 g / m ^2. Subsequently, the surface has a depth of 11 mm and the number of driven wires is 34 / cm ² . In the same manner, needle punching with a depth of 7.0 mm and a driving number of 31 pieces / cm ² was performed, and the resulting needle punched non-woven fabric was slit with a fork needle (cord needle 25th) on the front side with a cord machine Processed with a needle depth of 6.5 mm and a feed of 3.5 mm / stroke on the bed plate of the plate, wound in the vertical direction as a brushed raised nonwoven fabric I took it.
(Sample 2)
85% by mass of polyester fiber (melting point: 260 ° C.) having a fineness of 13.3 dtex and a fiber length of 64 mm, black original polyester fiber having a fineness of 33.3 dtex and a fiber length of 76 mm (melting point: 260 ° C.) 15 A mass% is uniformly mixed and then carded to form a fiber layer (average fineness: 16.3 dtex) having a basis weight of about 420 g / m ² , and subsequently, a depth of 11.5 mm and the number of driven 31 / cm ² Similarly, the back surface is 6.5 mm deep and the number of driven holes is 34 / cm ² , and the surface is further needle punched at a depth of 6.0 mm and the number of driven lines is 32 lines / cm ² . Using a fork needle (loading needle 25th) on the front side of the nonwoven fabric with a cord machine, needle bed depth 6.5mm, feed 3.5mm / It processed with the stroke and wound up the hook-like raising nonwoven fabric in the vertical direction.
(Sample 3)
40% by mass of black original polyester fiber (melting point: 260 ° C.) having a fineness of 6.6 dtex and a fiber length of 64 mm, and black original polyester fiber having a fineness of 11.0 dtex and a fiber length of 64 mm (melting point: 260 ° C. ) 40% by mass, beige original polyester with fineness 6.7 dtex (dtex), fiber length 64 mm gray original polyester fiber (melting point: 260 ° C.) 10% by mass, fineness 4.4 decitex, fiber length 51 mm / Low melting point polyester composite fiber (melting point of low melting point polyester: 110 ° C.) 10% by mass, and then carded to obtain a fiber layer (average fineness 8.2 decitex) having a basis weight of about 420 g / m ^2. depth on the surface of 10 mm, end counts 33 present / cm ^2, similarly to the back surface depth 7 mm, end counts 3 This / cm ^2, further depth 7mm on the surface, end counts of 34 / cm subjected to ^second needle punching process, the wound once, forks on the front side at the code machine resulting needle punched up the nonwoven needle ( It was processed at a needle depth of 6.5 mm and a feed of 2.3 mm / stroke with a cord needle 25), and a cocoon-like raised nonwoven fabric was wound up in the vertical direction.
(Sample 4)
40% by mass of beige original polypropylene fiber (melting point: 190 ° C.) having a fineness of 7.8 dtex and a fiber length of 64 mm, and gray original polyester fiber having a fineness of 11.0 dtex (dtex) and a fiber length of 64 mm (melting point: 260) ° C) 20% by mass, 30% by mass of gray original polyester fiber (melting point: 260 ° C) with a fineness of 6.7 dtex and a fiber length of 64 mm, and a beige original polyester with a fineness of 4.4 dtex and a fiber length of 51 mm / Low melting point polyester composite fiber (melting point of low melting point polyester: 110 ° C.) 10% by mass, and then carded to obtain a fiber layer (average fineness: 8.2 decitex) having a basis weight of about 250 g / m ² , subsequently, the depth to the surface of 9 mm, end counts of 18 / cm ^2, similarly to the back surface depth 10 mm, hitting Subjected to needle punching of write number, 120 / cm ^2, after wound once, needle depth with a fork on the front side and the resulting needle punched up the nonwoven fabric at the code machine needles (Code needle 25 cotton count) of 6 It was processed at a rate of 0.5 mm and a feed of 2.3 mm / stroke, and a cocoon-like raised nonwoven fabric was wound up in the longitudinal direction.
(Sample 5)
60% by mass of a polyester fiber (melting point: 260 ° C.) having a fineness of 7.8 dtex and a fiber length of 64 mm, and a black original polyester fiber (melting point: 260 ° C.) of 40 having a fineness of 17.0 dtex and a fiber length of 76 mm Next, carding is performed to obtain a fiber layer (average fineness: 11.48 dtex) with a basis weight of about 400 g / m ^2. Subsequently, the surface has a depth of 11 mm and the number of driven wires is 34 / cm ² . In the same manner, needle punching with a depth of 7.0 mm and a driving number of 31 / cm ² is performed, and the resulting non-woven fabric after needle punching is slit with a fork needle (25th cord needle) on the front side with a cord machine Zigzag processing is performed on the bed bed of the plate at a needle depth of 6.5 mm and a feed of 3.5 mm / stroke, and the surface is non-woven The cloth was wound up.
(Sample 6)
40% by mass of black original polyester fiber (melting point: 260 ° C.) having a fineness of 6.6 dtex and a fiber length of 64 mm, and black original polyester fiber having a fineness of 11.0 dtex and a fiber length of 64 mm (melting point: 260 ° C. ) 10% by mass of a 40% by mass fine fiber 6.7 decitex and 64 mm fiber length gray original polyester fiber (melting point: 260 ° C.), and a beige original polyester / low melting point polyester having a fineness of 4.4 decitex and a fiber length of 51 mm. 10% by mass of a composite fiber (melting point of low-melting polyester: 110 ° C.) is uniformly mixed, and then carded to obtain a fiber layer (average fineness: 8.2 dtex) with a basis weight of 400 g / m ^2. is 10 mm, end counts 33 present / cm ^2, similarly depth 7mm on the back, end counts 35 present / cm ² Further depth 7mm on the surface, was wound by applying a needle punching process thread count of 34 / cm ^2.

The needle-punched non-woven fabric obtained is processed with a fork needle (38th No. for Diroa) on the front side with a fork needle at a needle depth of 10.0 mm and a feed of 2.3 mm / stroke. The brushed nonwoven fabric was wound up.
(Sample 7)
40% by mass of black original polyester fiber (melting point: 260 ° C.) having a fineness of 6.6 dtex and a fiber length of 64 mm, and black original polyester fiber having a fineness of 11.0 dtex and a fiber length of 64 mm (melting point: 260 ° C. ) 40% by mass, fineness of 6.7 decitex (dtex), fiber length 64 mm black original polyester fiber (melting point: 260 ° C.) 10% by mass, fineness 4.4 decitex, fiber length 51 mm beige original polyester / low 10% by mass of a melting point polyester composite fiber (melting point of low melting point polyester: 110 ° C.) is uniformly mixed, and then carded to obtain a fiber layer (average fineness: 8.2 decitex) having a basis weight of about 400 g / m ² . depth on the surface of 10 mm, end counts 33 present / cm ^2, similarly depth 7mm on the back, end counts 35 / Cm ^2, further depth 7mm on the surface, was wound subjected to needle punching treatment of the end count of 34 / cm ^2.

Next, each non-woven fabric of Samples 1 to 7 was used and subjected to a hair baking process according to the following description to obtain Examples 1 to 6 and Comparative Examples 1 to 4.
(Examples 1-5)
In Examples 1, 2, 3, 4, and 5, the non-woven fabrics of Samples 1, 2, 3, 4, and 5 were subjected to gas hair burning (directly burner) processing, respectively. The processing conditions are that the burner is arranged so that the flame is 45 degrees obliquely upward from below the drawing direction, a gas pressure of 100 kg / cm ² , a flame of about 5 cm is emitted from the flame hole of the burner, and a distance of 2 cm from the flame. The above-mentioned nonwoven fabric was arranged, and the treatment speed was exposed to each raised nonwoven fabric at 13 m / min in Examples 1, 2 and 5, 12 m / min in Example 3, and 15 m / min in Example 4. In addition, it processed using the thing which has the staggered arrangement | positioning of the flame hole row | line | column 3 pitch 3mm pitch 3mm in the width direction of the said raising nonwoven fabric as a burner.
(Example 6)
In Example 6, the nonwoven fabric of Sample 5 was subjected to gas hair burning (directly burner) processing. The processing conditions are that the burner is arranged so that the flame is 60 degrees obliquely upward from below the drawing direction, a gas pressure of 100 Kg / cm ² , a flame of about 5 cm is emitted from the flame hole of the burner, and a distance of 2 cm from the flame. The said nonwoven fabric was arrange | positioned and exposed to the raising nonwoven fabric at the process speed of 15 m / min. The burner was treated by using the raised nonwoven fabric having a staggered arrangement of 3 mm flame hole rows with a pitch of 3 mm in the width direction.
(Comparative Examples 1 and 2)
In Comparative Examples 1 and 2, the nonwoven fabrics of Samples 6 and 7 were subjected to gas hair burning (directly burner) processing. The processing conditions are that the burner is arranged so that the flame is 45 degrees obliquely upward from below the drawing direction, the gas is 100 kg / cm ² , the flame of about 5 cm is emitted from the flame hole of the burner, and the above-mentioned distance is 2 cm from the flame. A nonwoven fabric was placed and exposed to the raised nonwoven fabric at a processing speed of 15 m / min. The burner was treated by using the raised nonwoven fabric having a staggered arrangement with a pitch of 3 mm and an interval of 3 mm of flame hole rows in the width direction.
(Comparative Example 3)
In Comparative Example 3, the non-woven fabric of Sample 3 was subjected to gas hair burning (directly burner). The processing conditions are such that the burner is placed so that the flame is 10 degrees obliquely upward from below the drawing direction, a gas pressure of 80 kg / cm ² , a flame of about 5 cm is emitted from the flame hole of the burner, and a distance of 2 cm from the flame The said nonwoven fabric was arrange | positioned and exposed to the raising nonwoven fabric at the process speed of 15 m / min. The burner was treated by using the raised nonwoven fabric having a staggered arrangement with a pitch of 3 mm and an interval of 3 mm of flame hole rows in the width direction.
(Comparative Example 4)
In Comparative Example 4, the non-woven fabric of Sample 3 was subjected to gas hair burning (directly burner). The processing condition is that the burner is arranged so that the flame is 45 degrees obliquely upward from below the drawing direction, the gas pressure is 100 kg / cm ² , the flame of about 5 cm is emitted from the flame hole of the burner, and the distance is 2 cm from the flame. The said nonwoven fabric was arrange | positioned and exposed to the raising nonwoven fabric at the process speed of 9 m / min. The burner was treated by using the raised nonwoven fabric having a staggered arrangement with a pitch of 3 mm and an interval of 3 mm of flame hole rows in the width direction.

The nonwoven fabric products of Examples 1 to 6 and Comparative Examples 1 to 4 thus obtained were measured according to the following measurement method, and the results shown in Table 1 below were obtained.
Measurement method Mass per unit area (weight per unit area)
It calculated | required based on the method of 5.2 of JISL1096.
The ratio of the loop depth of the non-woven fabric that has been surface-baked on the fork needle. The sample was cut with a razor in the thickness direction, and the side surface was magnified 25 times with a microscope (manufactured by Keyence Corporation). ) And the height (h) between the mountain and the valley, and the depth ratio is calculated by the following formula. (Indicated by the average value of n = 10)
Depth rate (%) = (h / H) × 100
Anti-slip test 40% by mass of black original polyester fiber (melting point: 260 ° C.) having a fineness of 6.6 dtex and a fiber length of 64 mm, black original polyester fiber having a fineness of 11.0 dtex and a fiber length of 64 mm (melting point) : 260 ° C.) 40% by mass, fineness 6.7 dtex (dtex), gray original polyester fiber (melting point: 260 ° C.) 10% by mass of fiber length 64 mm, further fineness 4.4 dtex (dtex), fiber length 51 mm 10% by weight of beige original polyester / low-melting polyester composite fiber (melting point of low-melting polyester of 110 ° C.) is uniformly mixed, and then carded to obtain a fiber layer having an average weight of about 400 g / m ² (average fineness: 8.2) dtex), and subsequently, the depth to the surface of 10 mm, end counts 33 present / cm ^2, similarly to the back surface depth 7mm, end counts 35 present / cm ^2, further depth 7mm on the surface, subjected to needle punching treatment of the end count of 34 / cm ^2, and heat-treated continuously thermal processor (hot air-through method) in 90 seconds residence time, Further, the treated fiber layer is continuously wound on a winder by adjusting the thickness and adjusting the thickness between fibers with a hot roll (roll temperature: 70 ° C., gap width between rolls: 0.3 mm). I got a punch carpet.

The nonwoven fabrics of Examples 1 to 6 and Comparative Examples 1 to 4 were respectively adhered to a PVC plate (thickness 3 mm, weight 40 g) having a width of 100 mm and a length of 120 mm with double-sided tape, and a load of 100 g was applied on the plate. Each sample was pulled in the horizontal direction with respect to the surface of the punch carpet (tensile speed: 100 mm / min), and the heel friction resistance N when each sample was slid was measured.

上表より、本発明に係るフロアマット用裏材は、比較のものに比し溶融塊が均一であり、摩擦抵抗力が全て６．５Ｎ以上を示すと共に、意匠性にも優れていることが分かる。

From the above table, the floor mat backing according to the present invention has a uniform molten mass, a friction resistance of 6.5 N or more, and an excellent design as compared with the comparative one. I understand.

(A) is a perspective view showing an example of a cord machine used in the present invention, and (B) is a partial view showing an aspect of pile raising formed by the cord machine. It is explanatory drawing which shows the flame direction with respect to the raising nonwoven fabric pulled out from the winding roll. 1 is an external perspective partial view of a floor mat backing according to the present invention.

Explanation of symbols

1: Fork needle 2: Bed plate 3: Non-woven fabric 4: Pile raised 5: Drive roll 6: Brushed non-woven fabric 7: Flame direction 8: Molten lump

Claims (4)

A short fiber web made of thermoplastic fibers having a basis weight range of 200 to 800 g / m ² that is uniformly mixed and spread is made of a nonwoven fabric in which constituent fibers are entangled with each other by needling. In addition, looped nappings in the form of ridges, lattices, or zigzags are formed and the tips of the raised fibers are melted, so that one side of the nonwoven fabric becomes cocoons, lattices, or zigzags by the molten mass. A floor mat backing excellent in design and snuggling properties, characterized in that the non-woven fabric has a wrinkle friction stress of 6.5 N or more on the surface that is patterned and patterned with a molten mass. Pre-needle processing is performed on a short fiber web made of thermoplastic fibers having a basis weight range of 200 to 800 g / m ² that is uniformly mixed and spread, and the constituent fibers are entangled with each other, and then the entangled short fibers Is passed through a cord machine and processed with a fork needle to wind a looped, raised or zigzag loop raised on one side, and then the wound nonwoven fabric is pulled out from the drive roll and the raised surface The tip of the raised fiber is melted by directly exposing it to a flame at an angle of 25 to 65 ° obliquely above and below the drawing direction at a temperature 30 ° C. or more higher than the melting temperature of the thermoplastic fiber, and the formed molten mass is the surface of the nonwoven fabric. Design and snuggling characterized by forming a wrinkle-like, lattice-like or zigzag-like pattern on the surface and forming a wrinkle wear stress on the patterned non-woven fabric to 6.5 N or more. A method for producing a floor mat backing that is superior in grindability.   The manufacturing method of the backing material for floor mats of Claim 2 which sets the thickness of the thermoplastic fiber which comprises a fiber web to the fineness of 1.0-50.0 decitex (dtex).   The manufacturing method of the backing material for floor mats of Claim 2 or 3 which makes the loop height of the loop-shaped raising raised with a fork needle needle 25-65% of the thickness of a nonwoven fabric layer.

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