JP6847680B2 - Tile carpet and its manufacturing method - Google Patents

Description

The present invention relates to a tile carpet in which a lining layer is laminated and integrated on the lower surface of a pile fabric layer in which a pile is planted on the upper surface of the base fabric.

Traditionally, tile carpets have been used as flooring materials in offices and commercial facilities because of their advantages of being easier to install, easier to carry, and partially replaceable than roll carpets. Various materials are applied to the back surface of the tile carpet to seal the front pile layer. This filling is intended to have the effect of preventing fluffing of the carpet.

In Patent Document 1, in the layer structure of the cross section of the tile carpet, in the order from the lower layer to the upper layer in the laid state, the layer of the sheet in the vinyl chloride mixture in the lower layer of the base material portion and the glass of the next layer with the glass fiber aggregate cloth as a boundary. A tile carpet that is laminated in the order of a layer of a fiber assembly cloth, then a soft layer of a vinyl chloride mixture on the base material part, and then a layer of a carpet part including a base cloth part is disclosed.

The applicant has applied for Patent Document 2, and in a tile carpet in which a surface pile layer, a sealing layer, and a lining layer are laminated in this order from the top, the sealing layer is formed of a low-viscosity polyvinyl chloride resin and has a viscosity. Discloses a tile carpet having a viscosity of 5000 CPS or less and an inorganic component of 200 weight or less with respect to 100 parts by weight of a polyvinyl chloride resin.
Japanese Unexamined Patent Publication No. 2005-2541 Japanese Unexamined Patent Publication No. 2011-245067

In Patent Document 1, since the viscosity of the low-viscosity vinyl chloride plastisol in the upper layer of the base material portion at 25 ° C. is as low as 900 mPa · S or less, the resin permeates too much into the base fabric of the carpet portion to hold the pile. The amount of resin required for this is reduced, and there is a risk that the thread removal strength and peeling strength of the pile cannot be maintained.

The technique described in Patent Document 2 exhibits excellent fuzz resistance, but there is a demand for a tile carpet that can be processed with a lower coating amount and has excellent pile pull-out strength and peel strength.

The present invention has been made in view of such a technical background, and a tile carpet which can be processed with a low coating amount, has excellent fuzz resistance, and has excellent pile pull-out strength and peel strength, and its manufacture. The purpose is to provide the method at low cost.

In order to achieve the above object, the present invention provides the following means.

[1] A pile fabric layer in which a pile is planted on the upper surface of the base fabric, and
A sealing resin layer laminated on the lower surface of the pile fabric layer, and
An intermediate resin layer laminated on the lower surface of the sealing resin layer and
A lining layer on the lower surface of the intermediate resin layer,
It is a tile carpet with
The pile fabric layer has a backstitch on the back side thereof.
The resin used for the sealing resin layer is a latex containing a vinyl chloride resin or a polyvinyl chloride resin paste sol.
The resin used for the intermediate resin layer is a polyvinyl chloride resin paste sol obtained by uniformly mixing a plasticizer and a polyvinyl chloride resin.
The intermediate resin layer holds the backstitch on the back surface side of the pile fabric layer and the backing layer.
Formation of the eye sealing resin layer is ^{300g / m 2 ~500g / m 2} ,
The formation of the intermediate resin layer is ^{100g / m 2 ~300g / m 2} ,
Before Symbol backing layer,
The first backing resin layer laminated on the lower surface of the sealing resin layer and
A reinforcing layer made of a non-woven fabric or a woven fabric laminated on the lower surface of the first backing resin layer and composed of at least one fiber selected from the group consisting of glass fibers and polyester fibers.
A second backing resin layer laminated on the lower surface of the reinforcing layer,
Including
The reinforcing layer is impregnated with resin, the reinforcing layer and the first backing resin layer are adhered to each other, and the reinforcing layer and the second backing resin layer are adhered to each other.
Each of the backing resin layers is a recycled sheet obtained by crushing a carpet waste material containing a vinyl chloride resin.
A tile carpet that features that.

[2] The tile carpet according to item 1 above, wherein the latex containing a vinyl chloride resin is a latex containing a vinyl chloride resin and an acrylic resin.

[3] The method for manufacturing the tile carpet according to the above [1] and [2].
The lower surface of the pile fabric layer, and forming after coating latex or polyvinyl chloride resin paste sol comprising a vinyl chloride resin, the eye sealing resin layer by heating the pile fabric layer,
The lower surface of said purpose sealing resin layer, after applying the polyvinyl chloride resin paste sol, and forming the intermediate resin layer by heating the pile fabric layer,
The first backing resin layer is laminated on the lower surface of the sealing resin layer, the reinforcing layer is laminated on the lower surface of the first backing resin layer, and the second backing resin layer is further laminated on the lower surface of the reinforcing layer. , The step of forming the backing layer and
including,
A method of manufacturing a tile carpet, which is characterized in that.

[4] The method for producing a tile carpet according to item 3 above, wherein the latex containing a vinyl chloride resin is a latex containing a vinyl chloride resin and an acrylic resin.

In the invention of [1], a pile cloth layer in which a pile is planted on the upper surface of the base cloth and a pile cloth layer are used.
A sealing resin layer laminated on the lower surface of the pile fabric layer, and
An intermediate resin layer laminated on the lower surface of the sealing resin layer and
A lining layer on the lower surface of the intermediate resin layer,
It is a tile carpet with
The pile fabric layer has a backstitch on the back side thereof.
The resin used for the sealing resin layer is a latex containing a vinyl chloride resin or a polyvinyl chloride resin paste sol.
The resin used for the intermediate resin layer is a polyvinyl chloride resin paste sol obtained by uniformly mixing a plasticizer and a polyvinyl chloride resin.
The intermediate resin layer holds the backstitch on the back surface side of the pile fabric layer and the backing layer.
Formation of the eye sealing resin layer is ^{300g / m 2 ~500g / m 2} ,
The formation of the intermediate resin layer is ^{100g / m 2 ~300g / m 2} ,
Before Symbol backing layer,
The first backing resin layer laminated on the lower surface of the sealing resin layer and
A reinforcing layer made of a non-woven fabric or a woven fabric laminated on the lower surface of the first backing resin layer and composed of at least one fiber selected from the group consisting of glass fibers and polyester fibers.
A second backing resin layer laminated on the lower surface of the reinforcing layer,
Including
The reinforcing layer is impregnated with resin, the reinforcing layer and the first backing resin layer are adhered to each other, and the reinforcing layer and the second backing resin layer are adhered to each other.
Since each of the backing resin layers is a recycled sheet obtained by crushing a carpet waste material containing a vinyl chloride resin, it is possible to suppress the penetration into the base fabric with a low coating amount, and the pile A tile carpet having excellent thread removal strength and peeling strength can be obtained.

In the invention of [2], since the latex containing a vinyl chloride resin is a latex containing a vinyl chloride resin and an acrylic resin, fuzz resistance and pile thread removal strength can be improved.

The invention of [3] is the method of manufacturing the tile carpet according to claim 1 or 2.
The lower surface of the pile fabric layer, and forming after coating latex or polyvinyl chloride resin paste sol comprising a vinyl chloride resin, the eye sealing resin layer by heating the pile fabric layer,
The lower surface of said purpose sealing resin layer, after applying the polyvinyl chloride resin paste sol, and forming the intermediate resin layer by heating the pile fabric layer,
The first backing resin layer is laminated on the lower surface of the sealing resin layer, the reinforcing layer is laminated on the lower surface of the first backing resin layer, and the second backing resin layer is further laminated on the lower surface of the reinforcing layer. , The step of forming the backing layer and
including,
Since it is a method for manufacturing a tile carpet, which is characterized by the fact that the resin permeates the base fabric of the pile fabric layer, it has excellent fuzz resistance and pile thread removal strength, and penetrates into the base fabric with a low coating amount. It can be suppressed, and it can be used as a method for producing a tile carpet having excellent pile pulling strength and peeling strength.

It is sectional drawing which shows one Embodiment of the tile carpet which concerns on this invention.

An embodiment of the tile carpet according to the present invention will be described with reference to the drawings. As shown in FIG. 1, in the tile carpet 1 of the present embodiment, the pile cloth layer 7 in which the pile 2 is planted on the upper surface of the base cloth 3 and the sealing resin laminated on the lower surface of the pile cloth layer 7 are provided. A tile carpet provided with a layer 5, an intermediate resin layer 6 laminated on the lower surface of the sealing resin layer 5, and a backing layer 8 on the lower surface of the intermediate resin layer 6, and used for the sealing resin layer 5. The resin to be obtained is a latex containing a vinyl chloride resin or a polyvinyl chloride resin paste sol, and the resin used for the intermediate resin layer 6 is a polyvinyl chloride resin paste sol, and the amount of the sealing resin layer 5 formed is large. was ^{200g / m 2 ~800g / m 2} , formed of the intermediate resin layer 6 is characterized in that it is a ^{50g / m 2 ~500g / m 2} .

As a feature of the present invention, the sealing resin layer 5 is laminated on the lower surface of the pile fabric layer 7, and the sealing resin is infiltrated into the base cloth 3 of the pile fabric layer 7 to form the sealing resin layer 5. Therefore, the intermediate resin layer 6 is laminated on the lower surface of the sealing resin layer 5 to hold the backstitch 4 of the pile fabric layer 7. By laminating the sealing resin layer 5 first, it is possible to prevent the resin used for the intermediate resin layer 6 from permeating into the base cloth 3 of the pile cloth layer 7 more than necessary, and the backstitch of the pile cloth layer 7 can be prevented. 4 and the backing layer 8 can be held by the intermediate resin layer 6. As a result, it is possible to obtain a tile carpet having excellent fuzz resistance, pile thread removal strength, and peeling strength even with a low coating amount.

The pile cloth layer 7 is formed by planting a pile 2 on the upper surface of the base cloth 3. There is a backstitch 4 on the back surface side of the pile fabric layer 7.

The base cloth 3 is not particularly limited, and examples thereof include a spunbonded non-woven fabric, a needle punched non-woven fabric, and a woven fabric.

The material of the base cloth 3 is not particularly limited, but for example, thermoplastic fibers such as polyester fibers, polyamide fibers and polyolefin fibers, composite fibers of each of these fibers, acetate and the like. Examples thereof include semi-synthetic fibers, regenerated fibers such as rayon, natural fibers such as hemp and cotton, and those obtained by blending these fibers.

The material of the pile 2 is not particularly limited, but for example, a material made of fibers such as polyester fiber, nylon fiber, polypropylene fiber, acrylic fiber, rayon fiber and the like is preferably used, and hemp and cotton are also used. , Those made of natural fibers such as wool.

The form of the pile 2 is not particularly limited, and examples thereof include a cut pile and a loop pile.

The resin used for the sealing resin layer 5 needs to be a latex containing a vinyl chloride resin or a polyvinyl chloride resin paste sol. The sealing resin layer 5 is a layer formed of a latex containing a vinyl chloride resin or a polyvinyl chloride resin paste sol.

The resin used for the intermediate resin layer 6 needs to be a polyvinyl chloride resin paste sol. The intermediate resin layer 6 is a layer formed of a polyvinyl chloride resin paste sol.

The latex containing a vinyl chloride resin means a latex containing water and a vinyl chloride resin and uniformly mixed. Above all, a latex containing a vinyl chloride resin and an acrylic resin is more preferable.

The polyvinyl chloride resin paste sol means a paste sol containing a plasticizer and a polyvinyl chloride resin and uniformly mixed. The polyvinyl chloride resin means a vinyl chloride resin having an average particle size of 0.1 μm to 2 μm, a non-porous particle morphology, a spherical shape, and a fine white powder in appearance.

Formation of the eye sealing resin layer 5 ^is required to be ^{200g / m 2 ~800g / m 2} . If it is less than 200 g / m ² , the fuzz property and the thread removal strength of the pile will deteriorate, ^{and if it exceeds 800 g / m 2} , not only the cost will increase, but also the weight will increase, and the time for solidifying the sealing resin layer 5 will be long. Therefore, the productivity is deteriorated, which is not preferable. Above all 300g ^{/ m 2} ~500g ^/ m 2 is more preferable.

Formation of the intermediate resin layer 6 ^is required to be ^{50g / m 2 ~500g / m 2} . If it is less than 50 g / m ² , the pile pulling strength and peeling strength will deteriorate, ^{and if it exceeds 500 g / m 2} , not only the cost will increase, but also the weight will increase, and the time for solidifying the intermediate resin layer 6 will increase. Therefore, the productivity is deteriorated, which is not preferable. Above all 100g ^{/ m 2} ~300g ^/ m 2 is more preferable.

The backing layer 6 is not particularly limited, but is composed of one or a plurality of backing resin layers and a non-woven fabric or woven fabric composed of at least one fiber selected from the group consisting of glass fibers and polyester fibers. It is preferable to include a reinforcing layer.

The one or more backing resin layers are preferably recycled sheets obtained by pulverizing a carpet waste material containing a vinyl chloride resin.

The backing layer 6 is a reinforcing layer laminated on the lower surface of the sealing resin layer 5 and a first backing resin layer, and is selected from the group consisting of glass fibers and polyester fibers. It is preferable that the reinforcing layer is made of a non-woven fabric or woven fabric composed of at least one kind of fiber, and the second backing resin layer is laminated on the lower surface of the reinforcing layer. The reinforcing layer is impregnated with resin. The impregnating resin adheres the reinforcing layer and the first backing resin layer, and also adheres the reinforcing layer and the second backing resin layer.

An embodiment of a method for manufacturing a tile carpet according to the present invention will be described. The pile cloth layer 7 in which the pile 2 is planted on the upper surface of the base cloth 3, the sealing resin layer 5 laminated on the lower surface of the pile cloth layer 7, and the sealing resin layer 5 laminated on the lower surface of the sealing resin layer 5. A method for manufacturing a tile carpet 1 including an intermediate resin layer 6 and a backing layer 8 on the lower surface of the intermediate resin layer 6, which is a latex or polyvinyl chloride resin containing a vinyl chloride resin on the lower surface of the pile fabric layer 7. After applying the paste sol, the pile fabric layer 7 is heated to form the sealing resin layer 5, and after applying the polyvinyl chloride resin paste sol to the lower surface of the sealing resin layer 5, the pile is formed. and forming a middle resin layer 6 by heating the fabric layer 7, the coating amount of the eye sealing resin layer 5 is 200 g / ^{m 2} (after drying) ~800g / ^{m 2} (after drying), wherein the coating amount of the intermediate resin layer 6 is ^{50g / m 2 ~500g / m 2} .

The manufacturing method of the tile carpet 1 according to the present invention will be described for each process. After applying latex or polyvinyl chloride resin paste sol containing vinyl chloride resin as the sealing resin layer 5 to the back surface of the pile cloth layer 7 in which the pile 2 is planted on the upper surface of the base cloth 3, a known heating furnace. , Heat with a dryer or the like to form the sealing resin layer 5. Next, after applying the polyvinyl chloride resin paste sol as the intermediate resin layer 6 to the lower surface of the sealing resin layer 5, the pile fabric layer 7 is heated by a heating device to form the intermediate resin layer 6. Finally, while forming the intermediate resin layer 6, it is inserted between a pair of upper and lower pressure rolls and pressure-bonded to continuously run an endless releasable belt (the surface of the belt is coated with a polytetrafluoroethylene layer). ) The backing layer 8 supplied above is laminated and integrated on the back surface of the pile fabric layer 7. When the obtained laminate is cut into a predetermined shape, for example, a square of 500 mm square, the tile carpet 1 as a final product can be obtained.

The step of forming the sealing resin layer 5 and the step of forming the intermediate resin layer 6 may be continuous processing or discontinuous processing.

The coating amount of the eye sealing resin layer 5 is required to be 200 g / ^{m 2} (after drying) ~800g / ^{m 2} (after drying). The coating amount (after drying) of the sealing resin layer 5 is the same amount as the forming amount of the sealing resin layer 5. When a latex containing a vinyl chloride resin is used for the sealing resin layer 5, the latex contains water, and therefore, when applied to the pile fabric layer 7, it is in a wet (WET) state. The coating amount (after drying) of the sealing resin layer 5 means the weight after applying latex containing a vinyl chloride resin to the pile fabric layer 7 and then heating the pile fabric layer 7 to dry the moisture. .. When the polyvinyl chloride resin paste sol is used for the sealing resin layer 5, the polyvinyl chloride resin paste sol does not contain water, so the amount of the polyvinyl chloride resin paste sol applied to the pile cloth layer 7 is the same. After applying the polyvinyl chloride resin paste sol to the pile cloth layer 7, the pile cloth layer 7 is heated and dried, and the weight is the same. If it is less than 200 g / m ² (after drying), the fuzz property and the thread removal strength of the pile will deteriorate, ^{and if it exceeds 800 g / m 2} (after drying), not only the cost will increase, but also the weight will increase, and the sealing resin will be used. Since the time for solidifying the layer 5 is long, the productivity is deteriorated, which is not preferable. Of these 300 g / ^{m 2} (after drying) to 500 g / ^{m 2} (after drying) is more preferable.

The coating amount of the intermediate resin layer 6 ^is required to be ^{50g / m 2 ~500g / m 2} . The coating amount of the intermediate resin layer 6 is the same as the forming amount of the intermediate resin layer 6. If it is less than 50 g / m ² , it will be difficult to apply it uniformly, and the thread removal strength and peeling strength of the pile will be worse. If it ^{exceeds 500 g / m 2} , not only the cost will increase, but also the weight will increase, and it will be in the middle. Since the time for solidifying the resin layer 6 is long, the productivity is deteriorated, which is not preferable. Above all 100g ^{/ m 2} ~300g ^/ m 2 is more preferable.

The viscosity of the sealing resin layer 5 is preferably 1000 mPa · S to 10000 mPa · S. If it is less than 1000 mPa · S, the fuzz resistance and the pulling strength of the pile are deteriorated, and if it exceeds 10000 mPa · S, the fuzz resistance and the pulling strength of the pile are deteriorated, which is not preferable. Among them, in the case of latex containing a vinyl chloride resin, it is more preferably 5000 mPa · S to 7000 mPa · S, and in the case of a polyvinyl chloride resin paste sol, it is more preferably 2000 mPa · S to 4000 mPa · S.

When a latex containing a vinyl chloride resin is applied, it is preferably foamed 1.0 to 2.5 times. Within this range, the resin can permeate into the base fabric of the pile fabric layer. Above all, it is more preferable that it is 1.5 times to 2.0 times.

The viscosity of the intermediate resin layer 6 is preferably 1000 mPa · S to 20000 mPa · S. If it is less than 1000 mPa · S, the thread pulling strength and peeling strength of the pile are deteriorated, and if it exceeds 20000 mPa · S, the workability is deteriorated, which is not preferable. Above all, 5000 mPa · S-10000 mPa · S is more preferable.

The method of applying the sealing resin layer 5 is not particularly limited, but a method of applying with a roll coater is more preferable.

The method of applying the intermediate resin layer 6 is not particularly limited, and examples thereof include a knife coater and a roll coater. Among them, a method of applying the intermediate resin layer 6 is more preferable.

The heating device for forming the sealing resin layer 5 is not particularly limited, and examples thereof include a tenter dryer, a heating heater, and a heating furnace.

The heating temperature for forming the sealing resin layer 5 is preferably 110 ° C. to 160 ° C. By setting the heating temperature in such a temperature range, fuzz resistance and pile thread removal strength can be improved. Of these, 130 ° C. to 150 ° C. is more preferable.

The heating device for forming the intermediate resin layer 6 is not particularly limited, and examples thereof include a tenter dryer, a heating heater, and a heating furnace.

The heating temperature for forming the intermediate resin layer 6 is preferably 110 ° C to 160 ° C. By setting the heating temperature in such a temperature range, the thread removal strength and the peeling strength of the pile can be improved. Of these, 130 ° C. to 150 ° C. is more preferable.

The latex containing the vinyl chloride resin of the sealing resin layer 5 may appropriately contain various additives such as a filler.

The polyvinyl chloride resin paste sol of the sealing resin layer 5 may appropriately contain various additives such as a colorant, a heat stabilizer, a hygroscopic agent, and a filler.

The polyvinyl chloride resin paste sol of the intermediate resin layer 6 may appropriately contain various additives such as a colorant, a heat stabilizer, a hygroscopic agent, and a filler.

Next, specific examples of the present invention will be described, but the present invention is not particularly limited to those of these examples.

<Material used>
(Pile fabric layer)
A polyester fiber non-woven fabric (base cloth) having a grain of 90 g / m ² to which pile yarn made of nylon fibers is tufted as a loop pile (pile grain of 520 g / m ² ).
(Backing layer)
Recycled sheet obtained by crushing waste carpet material containing polyvinyl chloride resin with glass base cloth layer (glass base cloth basis weight 35 g / m ² , sheet thickness 1.2 mm)
(Latex containing vinyl chloride resin used for the sealing resin layer)
Water was mixed at a ratio of 50%, a vinyl chloride resin-acrylic resin mixture at 15%, calcium carbonate at 33%, and an acrylic resin at 2% to obtain a latex containing a vinyl chloride resin. The viscosity of the obtained latex containing the vinyl chloride resin was 6000 mPa · S.
(Polyvinyl chloride resin paste sol used for the intermediate resin layer)
A polyvinyl chloride resin paste sol was obtained by blending 55 parts by mass of DOP with 100 parts by mass of the polyvinyl chloride resin and thoroughly stirring and mixing. The viscosity of the obtained polyvinyl chloride resin paste sol was 8000 mPa · S.

<Example 1>
Using a roll coater on the back surface of the pile fabric layer, a latex containing a vinyl chloride resin having a viscosity of 6000 mPa · S, which was prepared in advance as a sealing resin layer, was dried at a foaming ratio of 1.5 times. The coating amount was 350 g / m ² , and the mixture was heated at 130 ° C. for 5 minutes using a tenter dryer to form a sealing resin layer on the back surface of the pile fabric layer. Next, using a roll coater on the lower surface of the sealing resin layer, a polyvinyl chloride resin paste sol having a viscosity of 8000 mPa · S prepared in advance as an intermediate resin layer was applied at a coating amount of 150 g / m ² . It is heated at 180 ° C. for 1 minute using a heating heater, and while forming an intermediate resin layer on the lower surface of the sealing resin layer, it is inserted between a pair of upper and lower pressure rolls and crimped, and the endless release type that runs continuously. The lining layer supplied on the sex belt (the surface of the belt coated with the polytetrafluoroethylene layer) was laminated and integrated on the back surface of the intermediate resin layer. The obtained laminate was cut into a square of 500 mm square to obtain the tile carpet 1 shown in FIG.

<Example 2>
First, a polyvinyl chloride resin paste sol was obtained by blending 100 parts by mass of a polyvinyl chloride resin with 85 parts by mass of DOP and thoroughly stirring and mixing. The viscosity of the obtained polyvinyl chloride paste sol was 2000 mPa · S. Next, using a roll coater on the back surface of the pile fabric layer, a polyvinyl chloride resin paste sol having a viscosity of 2000 mPa · S, which was prepared in advance as a sealing resin layer, was applied so that the coating amount was 350 g / m ^2. And heated at 155 ° C. for 3 minutes using a heating furnace to form a sealing resin layer on the back surface of the pile fabric layer. Next, using a roll coater on the lower surface of the sealing resin layer, a polyvinyl chloride resin paste sol having a viscosity of 8000 mPa · S prepared in advance as an intermediate resin layer is applied at a coating amount of 150 g / m ² , and a heater is applied. An endless releasable belt that runs continuously by heating at 180 ° C. for 1 minute to form an intermediate resin layer on the lower surface of the sealing resin layer, inserting it between a pair of upper and lower pressure rolls, and crimping it. The backing layer supplied on the surface of the belt coated with the polytetrafluoroethylene layer was laminated and integrated on the back surface of the intermediate resin layer. The obtained laminate was cut into a square of 500 mm square to obtain the tile carpet 1 shown in FIG.

<Example 3>
As a sealing resin layer, 100 parts by mass of DOP was mixed with 100 parts by mass of polyvinyl chloride resin, and the mixture was sufficiently stirred and mixed to prepare a polyvinyl chloride resin paste sol having a viscosity of 1000 mPa · S. The tile carpet 1 shown in FIG. 1 was obtained in the same manner as in Example 2.

<Example 4>
As the sealing resin layer, 55 parts by mass of DOP was mixed with 100 parts by mass of the polyvinyl chloride resin, and the mixture was sufficiently stirred and mixed to prepare a polyvinyl chloride resin paste sol having a viscosity of 8000 mPa · S. The tile carpet 1 shown in FIG. 1 was obtained in the same manner as in Example 2.

<Example 5>
The tile carpet 1 shown in FIG. 1 was obtained in the same manner as in Example 1 except that the foaming ratio of the sealing resin layer was set to 2.5 times.

<Example 6>
Examples except that a polyvinyl chloride resin paste sol having a viscosity of 6000 mPa · S was set as an intermediate resin layer by blending 65 parts by mass of DOP with 100 parts by mass of a polyvinyl chloride resin and sufficiently stirring and mixing the mixture. In the same manner as in 2, the tile carpet 1 shown in FIG. 1 was obtained.

<Example 7>
Examples except that a polyvinyl chloride resin paste sol having a viscosity of 2000 mPa · S was set as an intermediate resin layer by blending 85 parts by mass of DOP with 100 parts by mass of a polyvinyl chloride resin and sufficiently stirring and mixing the mixture. In the same manner as in 2, the tile carpet 1 shown in FIG. 1 was obtained.

<Example 8>
The tile carpet 1 shown in FIG. 1 was obtained in the same manner as in Example 1 except that the coating amount (after drying) of the sealing resin layer ^{was set to 200 g / m 2.}

<Example 9>
The tile carpet 1 shown in FIG. 1 was obtained in the same manner as in Example 1 except that the coating amount (after drying) of the sealing resin layer ^{was set to 600 g / m 2.}

<Example 10>
The tile carpet 1 shown in FIG. 1 was obtained in the same manner as in Example 1 except that the coating amount of the intermediate resin layer ^{was set to 50 g / m 2.}

<Example 11>
The tile carpet 1 shown in FIG. 1 was obtained in the same manner as in Example 1 except that the coating amount of the intermediate resin layer ^{was set to 400 g / m 2.}

<Comparative example 1>
A tile carpet was obtained in the same manner as in Example 1 except that the sealing resin layer was not laminated.

<Comparative example 2>
A tile carpet was obtained in the same manner as in Example 1 except that the intermediate resin layer was not laminated.

<Comparative example 3>
A tile carpet was obtained in the same manner as in Example 1 except that the coating amount (after drying) of the sealing resin layer ^{was set to 150 g / m 2.}

<Comparative example 4>
A tile carpet was obtained in the same manner as in Example 1 except that the coating amount of the intermediate resin layer ^{was set to 35 g / m 2.}

The viscosity of the latex containing the vinyl chloride resin of the sealing resin layer in the table was measured by using a BM type viscometer (No. 3 rotor, 6 rpm, measured after 1 minute) after leaving it at 25 ° C. for 2 hours. It was. In addition, the viscosity of the polyvinyl chloride resin paste sol of the sealing resin layer and the polyvinyl chloride resin paste sol of the intermediate resin layer in the table was measured after leaving at 25 ° C. for 2 hours, and then a BM type viscometer (No. 4 rotor, No. 4 rotor, 6 rpm, measured after 1 minute).

Each tile carpet obtained as described above was evaluated based on the following evaluation method. The results of these evaluations are shown in Table 1.

<Fuzz resistance evaluation method>
A needle cloth-like wear wheel is used for a taber type wear tester (specified in JIS L 1096-8.19.3: 2010), a load of 300 g per wheel is applied to each wear wheel, and the test table is rotated 20 times. Then, peel off the test piece and visually observe the fluffing state of the pile yarn. Those with very little fluffing are "◎", those with little fluffing are "○", those with some fluffing are "△", and fluffing. Those with a large number of items were evaluated as "x", and those with "○" or higher were evaluated as passing.

<Pile removal strength evaluation method>
In accordance with JIS L 1021-8: 2007, the yarn removal strength (N) of the pile yarn is measured, and the pile removal strength of the pile yarn is 30 N or more as "◎" and 24.5 N or more and less than 30 N as "○". Less than 24.5 was regarded as "x", and "○" or more was regarded as acceptable.

<Peeling strength evaluation method>
The peel strength (N) was measured according to JIS L 1021-9: 2007. A peel strength of 40 N or more was evaluated as “⊚”, a peel strength of 30 N or more and less than 40 N was evaluated as “◯”, a peel strength of less than 30 N was evaluated as “x”, and a peel strength of “○” or more was evaluated as acceptable.

As is clear from Table 1, the tile carpets of Examples 1 to 11 of the present invention were excellent not only in fuzz resistance but also in pile pulling strength and peeling strength.

On the other hand, the tile carpet of Comparative Example 1 was inferior in fuzz resistance, pile pull-out strength, and peel strength. The tile carpet of Comparative Example 2 was inferior in pile pulling strength and peeling strength. The tile carpet of Comparative Example 3 was inferior in fuzz resistance, pile pull-out strength, and peel strength. The tile carpet of Comparative Example 4 was inferior in pile pulling strength and peeling strength.

The tile carpet according to the present invention is used, for example, by laying it on the floor surface of a general household, office, hotel, commercial facility, or the like.

1 ... tile carpet 2 ... pile 3 ... base fabric 4 ... backstitch 5 ... sealing resin layer 6 ... intermediate resin layer 7 ... pile fabric layer 8 ... lining layer

Claims (3)

A pile fabric layer in which a pile is planted on the upper surface of the base fabric,
A sealing resin layer laminated on the lower surface of the pile fabric layer, and
An intermediate resin layer laminated on the lower surface of the sealing resin layer and
A lining layer on the lower surface of the intermediate resin layer,
It is a tile carpet with
The pile fabric layer has a backstitch on the back side thereof.
The resin used for the sealing resin layer is a latex containing a vinyl chloride resin or a polyvinyl chloride resin paste sol.
The resin used for the intermediate resin layer is a polyvinyl chloride resin paste sol obtained by uniformly mixing a plasticizer and a polyvinyl chloride resin.
The intermediate resin layer holds the backstitch on the back surface side of the pile fabric layer and the backing layer.
Formation of the eye sealing resin layer is ^{300g / m 2 ~500g / m 2} ,
The formation of the intermediate resin layer is ^{100g / m 2 ~300g / m 2} ,
The lining layer is
The first backing resin layer laminated on the lower surface of the sealing resin layer and
A reinforcing layer made of a non-woven fabric or a woven fabric laminated on the lower surface of the first backing resin layer and composed of at least one fiber selected from the group consisting of glass fibers and polyester fibers.
A second backing resin layer laminated on the lower surface of the reinforcing layer,
Including
The reinforcing layer is impregnated with resin, the reinforcing layer and the first backing resin layer are adhered to each other, and the reinforcing layer and the second backing resin layer are adhered to each other.
Each of the backing resin layers is a recycled sheet obtained by crushing a carpet waste material containing a vinyl chloride resin.
A tile carpet that features that. The tile carpet according to claim 1, wherein the latex containing a vinyl chloride resin is a latex containing a vinyl chloride resin and an acrylic resin. The method for manufacturing a tile carpet according to claim 1 or 2.
After applying latex or polyvinyl chloride resin paste sol containing vinyl chloride resin to the lower surface of the pile fabric layer, the pile fabric layer is heated to form the sealing resin layer.
A step of applying a polyvinyl chloride resin paste sol to the lower surface of the sealing resin layer and then heating the pile fabric layer to form the intermediate resin layer.
The first backing resin layer is laminated on the lower surface of the sealing resin layer, the reinforcing layer is laminated on the lower surface of the first backing resin layer, and the second backing resin layer is further laminated on the lower surface of the reinforcing layer. , The step of forming the backing layer and
including,
A method of manufacturing a tile carpet, which is characterized in that.

Images