JP6273325B2 - Casing with food net - Google Patents

Description

  The present invention relates to a casing for molding, packaging and manufacturing a processed food product represented by processed meat products, processed fish products, processed milk products, and the like, and in particular, a nonwoven fabric and a net comprising thermoplastic synthetic fibers ( The present invention relates to a casing with a net for food integrated by heat laminating.

Conventionally, five-less casings and the like are mainly used as food casings for processed meat products such as ham, sausage, roast beef, grilled pork, salami, bacon, and raw meat. The five-less casing is formed by forming linen paper or nonwoven fabric into a cylindrical bag body and impregnating with viscose. Moreover, the casing for foods comprised including a thermoplastic synthetic fiber is also proposed (patent document 1).
Raw meat such as ham and sausage (meat lump, paste meat) is packed in a casing for food, and is processed into processed meat products such as ham and sausage through a process such as smoke. Smoke is a process of improving the preservability of the raw meat by adding a decorative color to the raw meat, adding flavor and flavoring.

On the other hand, for the purpose of forming and decorating raw meat such as ham and sausage, a string or net is wrapped directly around the raw meat, or a string or net is wrapped around a food casing packed with raw meat. It is manufactured into processed meat products through processes such as smoke.
Thus, winding a string or a net directly on the raw material meat, or winding a string or a net on a food casing packed with the raw material meat, takes time for forming the raw material meat and is inferior in productivity.
In addition, if a string or net is wrapped directly around the raw meat, the string or net will bite into the raw meat, so it is difficult to peel off the ham or sausage when removing the string or net from processed meat products such as ham and sausage. Many grievances have arisen because strings or nets remain on processed meat products such as sausages.
Therefore, in order to easily peel off the string or net, the current situation is that the string or net is wrapped around the food casing so that it can be easily peeled off together with the casing.

As a casing with a net for food, Patent Document 2 discloses a casing with a net for food formed by sewing a net on a bag-like casing. In this Patent Document 2, a bag-like casing is formed into a bag shape by winding a base paper for casing in a cylindrical shape, bonding cylindrical overlapping end portions, folding a cylindrical one end opening portion, and sewing the folding portion. To do.
The net is formed in a bottomed cylindrical shape and is placed on the outside of the bag-like casing. The net is sewn to both ends of the bag-like casing with a thread.

Japanese Utility Model Publication No. 02-78084 Utility Model Registration No. 3104485

Processed meat products such as ham, sausage, roast beef and grilled pork are sold in large quantities as gift products at the end of the year. Therefore, rationalization of production is urgently needed, and casings with nets for food that can streamline production of processed meat products are required. ing.
However, in the casing with a net for food of Patent Document 2, the net is sewn to both ends of the bag-like casing with a thread, and the net and the bag-like viscose are integrated. Provided.
In addition, since the net is sewn to both ends of the bag-like casing with a string, the net may come off the bag-like casing when stuffing raw meat such as ham and sausage.
Furthermore, the thread for sewing the net to both ends of the bag-like casing may be broken and mixed into the raw meat.

  The present invention has been made in view of the above problems, and by integrating a nonwoven fabric containing a thermoplastic synthetic fiber and a net with a thermal laminate, the net is difficult to come off from the nonwoven fabric, and foreign matter is prevented from being mixed. It is possible to provide a casing with a net for food, which can be further inexpensively packaged.

Claim 1 according to the present invention comprises a nonwoven fabric comprising thermoplastic synthetic fibers and a thermoplastic resin or thermoplastic synthetic fibers, and is laminated on the nonwoven fabric and thermocompression bonded to the nonwoven fabric. A non-woven fabric comprising: a core-sheath structure fiber having polyester as a core and polyethylene as a sheath; a core-sheath structure fiber having polyester as a core and a low melting point polyester as a sheath; and a vegetable fiber. A casing with a net for food , wherein the non-woven fabric and the net are bonded to each other by a melted sheath of the core-sheath structure fiber and a melted thermoplastic resin or thermoplastic synthetic fiber of the net. is there.

In the claims 1 according to the present invention, food net with pacing, for example, molding of food processing products, used for packaging and manufacturing. Food processing is, for example, meat processing, fish processing and milk processed products. Meat processing includes ham, sausage, roast beef, grilled pork, salami, and bacon. The processed fish products are fish sausage, fish ham and the like. The dairy product is cheese or the like.
Claim 1 of the present invention, the first, non-woven fabric is configured to contain the thermoplastic synthetic fibers, constituting contain the net (mesh) thermoplastic resin (or thermoplastic synthetic fibers).
Thereby, a nonwoven fabric has air permeability and water permeability, and also has heat sealability. The net has a heat sealing property.
Secondly, a nonwoven fabric and a net are heat laminated.
Thermal lamination is a process of pressing a nonwoven fabric and a net while heating them at a melting point equal to or higher than the glass transition point of the thermoplastic resin (thermoplastic synthetic fiber), so that the thermoplastic synthetic fiber of the nonwoven fabric and the thermoplastic resin of the net (or thermoplastic synthesis). Fiber) is melted and the nonwoven fabric and net are thermocompression bonded. The melted thermoplastic synthetic fiber of the nonwoven fabric is in contact with the net, and the molten thermoplastic resin (or thermoplastic synthetic fiber) of the net is also in contact with the melted thermoplastic synthetic fiber and enters between the fibers of the nonwoven fabric. Bonding (crimping) non-woven fabric and net. The molten thermoplastic synthetic fiber and the molten thermoplastic resin (or thermoplastic synthetic fiber) serve as a binder (adhesive) for bonding the nonwoven fabric and the net.
The molten thermoplastic synthetic fiber and the molten thermoplastic resin (or thermoplastic synthetic fiber) are cooled and solidified after being thermally laminated and bonded together.
And the thermoplastic synthetic fiber of the nonwoven fabric cooled and solidified and the thermoplastic resin (or thermoplastic synthetic fiber) of the cooled and solidified net firmly integrate the nonwoven fabric and the net.
Thereby, for example, in a processed meat product, even if raw meat (meat lump, paste meat) such as ham and sausage is packed in a casing with a net for food, the net does not come off from the nonwoven fabric and does not enter the raw meat. Moreover, since a net | network is comprised including a thermoplastic resin (or thermoplastic synthetic fiber), it elastically deforms according to raw material meat, adheres to raw material meat with a nonwoven fabric, and exhibits a decorative effect.

Further, in claim 1 according to the present invention, by laminating a net over the surface of the nonwoven fabric, and contact the back surface and the nonwoven fabric surface of the net, then, by heating the nonwoven fabric and net from the back of the nonwoven fabric, the nonwoven fabric It is preferable to heat laminate the net.
As a result, the net is firmly bonded to the nonwoven fabric by melting the thermoplastic resin (or thermoplastic synthetic fiber) on the back side of the net and the thermoplastic synthetic fiber of the nonwoven fabric without deforming and melting the front surface side of the net. In addition, the decoration effect of the net can be demonstrated.
Furthermore, in claim 1 according to the present invention, it is preferable to heat laminating a nonwoven fabric and net using laminator. Thereby, the casing with a net for food can be formed continuously, and an inexpensive packaging material can be provided.

In this onset bright, so constitute a nonwoven fabric and net polyethylene fibers of the same thermoplastic synthetic fibers (or the same thermoplastic resin) (or polyethylene resin), heat the nonwoven fabric and net at the same heating temperature Can be crimped. The heating temperature is a melting point equal to or higher than the glass transition point of the polyethylene fiber (or polyethylene resin).
Thereby, control of the heating temperature which heats a nonwoven fabric and a net | network becomes easy. Moreover, since a polyethylene fiber (polyethylene resin) is a widely used resin, it can form a nonwoven fabric and a net at low cost.

In this onset bright, since the structure in polyester fiber is a nonwoven fabric and net same thermoplastic synthetic fibers (or the same thermoplastic resin) (or polyester resin), heat the nonwoven fabric and net at the same heating temperature Can be crimped. The heating temperature is a melting point equal to or higher than the glass transition point of the polyester fiber (or polyester resin).
Thereby, control of the heating temperature which heats a nonwoven fabric and a net | network becomes easy. Moreover, since the polyester fiber (polyester resin) is a commonly used resin, it can form a nonwoven fabric and a net at a low cost.

In this onset bright, non-woven fabric because it is composed of a composite fiber containing polyethylene fibers and plant fibers, in thermal lamination, even if melted polyethylene fibers of the nonwoven fabric, can ensure proper ventilation and water permeability by the plant fibers.
As the plant fiber, cotton fiber, hemp fiber, pulp fiber, rayon fiber and the like can be adopted.

In this onset bright, non-woven fabric because it is composed of a composite fiber containing polyester fibers and vegetable fibers, in thermal lamination, be melt polyester fibers of the nonwoven fabric, can ensure proper ventilation and water permeability by the plant fibers.
As the plant fiber, cotton fiber, hemp fiber, pulp fiber, rayon fiber and the like can be adopted.

In this onset Ming, net because it is composed of a composite resin consisting of low melting point polyethylene resin and high melting point polyethylene resin, a heat lamination, pressure contact while heating the net a low melting point polyethylene resin glass transition point above the melting point of Thus, the non-woven fabric and the net can be thermocompression bonded by melting the low-melting polyethylene resin and the high-melting polyethylene resin.
In addition, the net has flexibility (elastic deformation) due to low melting point polyethylene resin, and can be deformed following raw meat (meat lump, paste) such as ham and sausage of processed meat products, such as ham and sausage In addition to maintaining the shape, the suitability for shard processing is also improved.

In this onset bright, since the net is composed of a polyester fiber, a heat lamination, by pressing while heating the net at the glass transition point or melting point of the polyester fiber, a nonwoven fabric and net melting the polyester fibers Can be thermocompression bonded.
In addition, the net has flexibility (elastic deformation) due to the polyester fiber, and can be deformed following raw meats such as ham and sausage of meat products (meat lump and paste), and the shape of ham and sausage etc. As well as improving the shard processing suitability.

In this onset bright, with food net casing, for example, molding of food processing products, used for packaging and manufacturing. Processed food products are, for example, processed meat products, processed fish products, and processed milk products. Processed meat products include ham, sausage, roast beef, grilled pork, salami, bacon and the like. The processed fish products are fish sausage, fish ham and the like. The dairy product is cheese or the like.
This onset Ming, the first, non-woven fabric is configured to contain the thermoplastic synthetic fibers, constituting contain the net (mesh) thermoplastic resin (or thermoplastic synthetic fibers).
Thereby, a nonwoven fabric has air permeability and water permeability, and also has heat sealability. The net has a heat sealing property.
Secondly, a nonwoven fabric with a net is formed by thermally laminating a nonwoven fabric and a net.
Thermal lamination is a process of pressing a nonwoven fabric and a net while heating them at a melting point equal to or higher than the glass transition point of the thermoplastic resin (thermoplastic synthetic fiber), so that the thermoplastic synthetic fiber of the nonwoven fabric and the thermoplastic resin of the net (or thermoplastic synthesis). Fiber) is melted and the nonwoven fabric and net are thermocompression bonded. The melted thermoplastic synthetic fiber of the nonwoven fabric is in contact with the net, and the molten thermoplastic resin (or thermoplastic synthetic fiber) of the net is also in contact with the melted thermoplastic synthetic fiber and enters between the fibers of the nonwoven fabric. Adhere (crimp) the nonwoven fabric and net. The molten thermoplastic synthetic fiber and the molten thermoplastic resin (or thermoplastic synthetic fiber) serve as a binder (adhesive) for bonding the nonwoven fabric and the net.
The melted thermoplastic synthetic fiber and the melted thermoplastic resin are cooled and solidified after being heat-laminated and bonded together.
Thereby, the thermoplastic synthetic fiber of the nonwoven fabric cooled and solidified and the thermoplastic resin (or thermoplastic synthetic fiber) of the cooled and solidified net firmly integrate the nonwoven fabric and the net.
Thirdly, the nonwoven fabric with a net is thermocompression bonded and formed into a cylindrical bag.
Thermocompression bonding is performed by pressing the nonwoven fabric and the net while heating the nonwoven fabric to the melting point above the glass transition point of the thermoplastic synthetic fiber (thermoplastic resin), so that the thermoplastic synthetic fiber of the nonwoven fabric and the thermoplastic resin of the net (or thermoplastic synthesis). Fiber) is melted and the nonwoven fabric and net are thermocompression bonded.
The molten thermoplastic synthetic fiber and the molten thermoplastic resin are cooled and solidified and bonded together.
Thereby, the thermoplastic synthetic fiber of the nonwoven fabric cooled and solidified and the thermoplastic resin (or thermoplastic synthetic fiber) of the cooled and solidified net are firmly integrated with the nonwoven fabric and the net and held in the cylindrical bag body.
The cylindrical bag body is firmly integrated by the cooled and solidified thermoplastic synthetic fiber and the cooled and solidified thermoplastic resin.
And, for example, in meat processing, even if raw meat such as ham and sausage (meat chunks, paste meat) is packed into a cylindrical bag body, the cylindrical bag body is formed by firmly fusing the nonwoven fabric and the net firmly together. So it won't break or break. Since the net of the cylindrical bag body is composed of thermoplastic synthetic fiber and thermoplastic resin, it deforms following the raw material meat and adheres to the raw material meat together with the nonwoven fabric.
Thereby, in a cylindrical bag body, a net exhibits a decorative effect. Moreover, even if raw material meat is packed in a cylindrical bag body, the net does not come off from the nonwoven fabric and does not enter the raw material meat.

In this onset bright, it is preferable to form the non-woven fabric with net nonwoven and the net was thermally laminated using the laminating machine. Moreover, it is preferable to thermocompression-bond the nonwoven fabric with a net | network using a heat seal bag making machine, and to form a cylindrical bag body.
Thereby, a cylindrical bag body can be formed continuously and an inexpensive packaging material can be provided.

In this onset bright, since the cylindrical body is made by forming a shard-like, for example, by filling the material kneading meat sausages such processed meat products in a continuous meat filling machine such as a double clipper, meat sausages, etc. Processed products can be molded, packaged and manufactured.
Since the nonwoven fabric and the net are integrated by heat lamination, the net does not come off the nonwoven fabric even if the cylindrical body is processed into a shard shape.
In addition, for example, when a shard-like cylindrical body is filled with raw meat paste of processed meat products, the net cooperates with the nonwoven fabric to form the raw paste meat into a cylindrical shape (shape of sausage, etc.), and further decoration Demonstrate the effect (mesh pattern). Moreover, even if it fills a raw material kneaded meat in a shard-like cylindrical body, a net | network does not come off from a nonwoven fabric and does not mix in raw material meat.

In this onset bright, it is preferable to use a shard machine to form a cylindrical body shard form.
Thereby, a cylindrical body can be continuously formed in a shard shape and an inexpensive packaging material can be provided.

In this onset bright, with food net casing, for example, molding of food processing products, used for packaging and manufacturing. Processed food products are, for example, processed meat products, processed fish products, and processed milk products. Processed meat products include ham, sausage, roast beef, grilled pork, salami, bacon and the like. The processed fish product is fish sausage, fish ham, etc., and the processed milk product is cheese or the like.
This onset Ming, the first, non-woven fabric is configured to contain the thermoplastic synthetic fibers, the net is composed of vegetable fibers or rayon fibers.
Thereby, a nonwoven fabric has air permeability and water permeability, and also has heat sealability.
Secondly, a nonwoven fabric and a net are heat laminated.
In the thermal laminate, the nonwoven fabric and the net are melt-bonded by heating and press-bonding the nonwoven fabric and the net by heating and pressing the nonwoven fabric and the net at a melting point equal to or higher than the glass transition point of the thermoplastic synthetic fiber. The melted thermoplastic synthetic fiber of the nonwoven fabric is brought into contact with the plant fibers (or rayon fibers) of the net by high pressure contact or enters between the plant fibers (or rayon fibers) to bond the nonwoven fabric and the net. The melted thermoplastic synthetic fiber of the nonwoven fabric becomes a binder (adhesive) that bonds the nonwoven fabric and the net.
The molten thermoplastic synthetic fiber is cooled and solidified after heat lamination, and is integrally bonded to the plant fiber (or rayon fiber) of the net.
Thereby, for example, in a processed meat product, even when raw meat such as ham and sausage (meat lump, paste meat) is packed in a casing with a net for food, the net is not easily detached from the nonwoven fabric and is not mixed into the raw meat. Moreover, since a net | network is comprised with a vegetable fiber or a rayon fiber, it deform | transforms according to raw material meat, it adheres to raw material meat with a nonwoven fabric, and exhibits a decorative effect.

Further, in this onset bright, by laminating a net over the surface of the nonwoven fabric, and contacts the back surface and the surface of the nonwoven fabric of the net, then, that the contact pressure while heating the nonwoven fabric and net from the rear surface of the nonwoven fabric, and the nonwoven fabric It is preferable to heat laminate the net.
As a result, the surface of the net is not thermally deformed, and the thermoplastic synthetic fiber of the nonwoven fabric is melted, whereby the decoration effect of the net can be exhibited while firmly pressing the net to the nonwoven fabric.
Further, in this onset bright, it is preferable to heat laminating a nonwoven fabric and net using laminator. Thereby, the casing with a net for food can be formed continuously, and an inexpensive packaging material can be provided.

It is a top view which shows the casing with a net for foodstuffs (nonwoven fabric with a net). It is a figure which shows the casing with a net | network for foods (nonwoven fabric with a net | network), Comprising: (a) is an AA arrow directional view of FIG. 1, (b) is an enlarged view of Fig.2 (a). It is a figure which shows a laminating machine, Comprising: (a) is a plane schematic diagram, (b) is an enlarged perspective view. It is a figure which shows the casing (tubular body) with a net | network for foods, Comprising: (a) is a top perspective view, (b) is BB expanded partial sectional drawing of Fig.4 (a). It is a figure which shows the casing with a net for foodstuffs (cylindrical bag body before a cutting | disconnection), Comprising: (a) is a top perspective view, (b) is CC expanded partial sectional drawing of Fig.5 (a). It is a figure which shows the casing with food nets (cylindrical bag body), Comprising: (a) is a front side top view of a cylindrical bag body, (b) is a back side top perspective view of a cylindrical bag body. It is a perspective view which shows a heat seal bag making machine. It is a figure which shows the casing with a net | network for foodstuffs, and a shard machine, Comprising: (a) is a front view, (b) is a DD arrow line view of Fig.8 (a). It is a casing with a net for food, (a) is a partial cross-sectional view of a cylindrical body formed in a shard shape by a shard machine, (b) is a cylindrical shape filled with kneaded meat by a continuous meat filling machine such as a double clip It is a partial cross section figure of a body. It is a top view which shows another casing with a net | network for foodstuffs (nonwoven fabric with a net | network). It is a figure which shows another casing with a net | network for foods (nonwoven fabric with a net | network), Comprising: (a) is the EE arrow line view of FIG. 10, (b) is an enlarged view of Fig.11 (a).

  The casing with a net for food according to the present invention will be described with reference to FIGS.

In FIGS. 1 to 11, the casing X with a net for food is widely used for packaging food, and particularly used for forming, packaging and manufacturing processed food products.
Processed food products are, for example, processed meat products, processed fish products, and processed milk products.
Processed meat products include ham, sausage, roast beef, grilled pork, salami, bacon, and raw meat. The processed fish products are fish sausage, fish ham and the like. The dairy product is cheese or the like.
The casing with food net X is a casing with a meat net for processed meat products, a casing with a fish net for processed fish products, and a casing with a net for dairy products for processed milk products.

  As shown in FIGS. 1 and 2, the casing X with a net for food includes a nonwoven fabric 1 and a net 2, and is formed by thermally laminating the nonwoven fabric 1 and the net 2.

As shown in FIGS. 1 and 2, the nonwoven fabric 1 has a cloth thickness ht and is configured to contain a thermoplastic synthetic fiber.
The thermoplastic synthetic fiber is a polyethylene fiber or a polyester fiber. Polyethylene fiber and polyester fiber are short fiber and long fiber.
The nonwoven fabric 1 has air permeability and water permeability (liquid permeability), and also has heat sealing properties by containing thermoplastic synthetic fibers.

  The nonwoven fabric 1 employs nonwoven fabric configurations A to F as specific configurations.

■ <Nonwoven fabric configuration A>
The nonwoven fabric 1 is composed of 100% by mass of polyethylene fiber.

■ <Nonwoven fabric configuration B>
The nonwoven fabric 1 is composed of 100% by mass of polyester fiber.

■ <Nonwoven fabric configuration C>
The nonwoven fabric 1 is comprised with the composite fiber containing a polyethylene fiber and a vegetable fiber.
The plant fiber is made of cotton fiber, hemp fiber, pulp fiber, rayon fiber or the like.
The blending ratio (content ratio) of mass% of polyethylene fiber and vegetable fiber is appropriately selected.

■ <Nonwoven fabric configuration D>
The nonwoven fabric 1 is comprised with the composite fiber containing a polyester fiber and a vegetable fiber.
The plant fiber is made of cotton fiber, hemp fiber, pulp fiber, rayon fiber or the like.
A blending ratio (content ratio) of mass% of the polyester fiber and the vegetable fiber is appropriately selected.

■ <Nonwoven fabric construction E>
The nonwoven fabric 1 is comprised with the composite fiber of a polyethylene fiber and a polyester fiber.
The blending ratio (content ratio) of mass% of polyethylene fiber and polyester fiber is appropriately selected.
As the polyethylene fiber and the polyester fiber, for example, a core-sheath structure fiber having a polyester as a core and a polyethylene as a sheath can be used. As the polyester fiber, for example, a core-sheath structure fiber having a polyester as a core and a low melting point polyester as a sheath is used. it can.

■ <Nonwoven fabric configuration F>
The nonwoven fabric 1 is comprised with the composite fiber of a polyethylene fiber, a polyester fiber, and a vegetable fiber.
The plant fiber is made of cotton fiber, hemp fiber, pulp fiber or the like.
The blending ratio (content ratio) of mass% of polyethylene fiber, polyester fiber and vegetable fiber is appropriately selected.
As the polyethylene fiber and the polyester fiber, for example, a core-sheath structure fiber having a polyester as a core and a polyethylene as a sheath can be used. As the polyester fiber, for example, a core-sheath structure fiber having a polyester as a core and a low melting point polyester as a sheath is used. it can.

The net 2 (net) includes a thermoplastic resin or a thermoplastic synthetic fiber. As shown in FIGS. 1 and 2, the net 2 has a plurality of wire rods 2a, and each wire rod 2a forms a mesh 2C (mesh).
The thermoplastic resin is a polyethylene resin, a polyester resin, a polypropylene resin, or the like.
The thermoplastic synthetic fiber is polyethylene fiber, polyester fiber, polypropylene fiber or the like. Polyethylene fiber, polyester fiber, and polypropylene fiber are short fiber and long fiber.
The net 2 has flexibility and heat sealability by being configured to contain a thermoplastic resin or a thermoplastic synthetic fiber.
The net 2 can be composed of colored thermoplastic resins such as black, white, red, green, yellow, and blue, or colored thermoplastic synthetic fibers.
The net 2 is formed, for example, by arranging a rhombus mesh. The mesh of the net 2 is not limited to the rhombus mesh, and a square mesh, a rectangular mesh, a trapezoidal mesh, a hexagonal mesh, or the like can be adopted.

  The net 2 employs net configurations a to j as specific configurations.

■ <Net configuration a>
The net 2 is formed by molding a polyethylene resin wire into a mesh lattice (molded net).

■ <Net configuration b>
The net 2 is formed by forming a polyester resin wire into a mesh lattice (molded net).

■ <Net configuration c>
The net 2 is configured by braiding polyethylene fiber wires (strings) into a mesh grid (no-node network) or by linking polyethylene fiber wires (strings) in a mesh grid (nodule network).

■ <Net configuration d>
The net 2 is configured by braiding polyester fiber wires (strings) in a mesh lattice (no-node network), or by connecting polyester fiber wires (strings) in a mesh grid (nodule network).

■ <Net configuration e>
The net 2 is formed by molding a composite resin wire made of a low-melting polyethylene resin (or low-density polyethylene resin) and a high-melting polyethylene resin (or high-density polyethylene resin) into a mesh lattice (molded net).
The mixing ratio of mass% of the low melting point polyethylene resin and the high melting point polyethylene resin is appropriately selected.

■ <Net configuration f>
The net 2 is constructed by braiding a composite fiber wire (string) made of low-melting polyethylene fiber and high-melting polyethylene fiber into a mesh lattice (non-knotted net), or linking the composite fiber wire into a mesh lattice. Configure (nodular network).
The blending ratio of mass% of the low melting point polyethylene fiber and the high melting point polyethylene fiber is appropriately selected.

■ <Net configuration g>
The net 2 is formed by molding a composite resin wire made of a low-melting polyester resin and a high-melting polyester resin into a mesh lattice (molded net).
The blending ratio of mass% of the low melting point polyester resin and the high melting point polyester resin is appropriately selected.

■ <Net configuration h>
The net 2 is constructed by braiding a composite fiber wire (string) made of low-melting polyester fiber and high-melting polyester fiber into a mesh lattice (non-knotted net), or linking the composite fiber wire into a mesh lattice. Configure (nodular network).
The orientation ratio of mass% of the low melting point polyester fiber and the high melting point polyester fiber is appropriately selected.

■ <Net configuration i>
The net 2 is formed by forming a polypropylene resin wire into a mesh lattice (molded net).

■ <Net configuration j>
The net 2 is configured by braiding polypropylene fiber wires into a mesh lattice (no-node network), or by tying polypropylene fiber wires (strings) into a mesh lattice (nodule network).

  In the casing X with a net for food, a specific combination of the nonwoven fabric 1 and the net 2 employs combination configurations 1 to 60.

■ <Union structure 1>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration A” and a net 2 having a “net configuration a”.

■ <Union structure 2>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration A” and a net 2 having a “net configuration b”.

■ <Union composition 3>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration A” and a net 2 having a “net configuration c”.

■ <Union structure 4>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration A” and a net 2 having a “net configuration d”.

■ <Union composition 5>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration A” and a net 2 having a “net configuration e”.

■ <Union composition 6>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration A” and a net 2 having a “net configuration f”.

■ <Union composition 7>
The casing X with a net for food includes a non-woven fabric 1 having a “non-woven fabric configuration A” and a net 2 having a “net configuration g”.

■ <Union structure 8>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration A” and a net 2 having a “net configuration h”.

■ <Union composition 9>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration A” and a net 2 having a “net configuration i”.

■ <Union structure 10>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration A” and a net 2 having a “net configuration j”.

■ <Union structure 11>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration B” and a net 2 having a “net configuration a”.

■ <Union structure 12>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration B” and a net 2 having a “net configuration b”.

■ <Union composition 13>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration B” and a net 2 having a “net configuration c”.

■ <Union structure 14>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration B” and a net 2 having a “net configuration d”.

■ <Union structure 15>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration B” and a net 2 having a “net configuration e”.

■ <Union structure 16>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration B” and a net 2 having a “net configuration f”.

■ <Union structure 17>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration B” and a net 2 having a “net configuration g”.

■ <Union structure 18>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration B” and a net 2 having a “net configuration h”.

■ <Union Composition 19>
The casing X with a net for food includes a non-woven fabric 1 having a “non-woven fabric configuration B” and a net 2 having a “net configuration i”.

■ <Union structure 20>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration B” and a net 2 having a “net configuration j”.

<Union structure 21>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration C” and a net 2 having a “net configuration a”.

<Union structure 22>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration C” and a net 2 having a “net configuration b”.

■ <Union structure 23>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration C” and a net 2 having a “net configuration c”.

■ <Union structure 24>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration C” and a net 2 having a “net configuration d”.

■ <Union composition 25>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration C” and a net 2 having a “net configuration e”.

■ <Union structure 26>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration C” and a net 2 having a “net configuration f”.

■ <Union structure 27>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration C” and a net 2 having a “net configuration g”.

■ <Union structure 28>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration C” and a net 2 having a “net configuration h”.

■ <Union structure 29>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration C” and a net 2 having a “net configuration i”.

■ <Union structure 30>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration C” and a net 2 having a “net configuration j”.

■ <Union structure 31>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration D” and a net 2 having a “net configuration a”.

■ <Union structure 32>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration D” and a net 2 having a “net configuration b”.

■ <Union structure 33>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration D” and a net 2 having a “net configuration c”.

■ <Union structure 34>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration D” and a net 2 having a “net configuration d”.

■ <Union structure 35>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration D” and a net 2 having a “net configuration e”.

■ <Union structure 36>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration D” and a net 2 having a “net configuration f”.

■ <Union structure 37>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration D” and a net 2 having a “net configuration g”.

■ <Union structure 38>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration D” and a net 2 having a “net configuration h”.

■ <Union structure 39>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration D” and a net 2 having a “net configuration i”.

■ <Union structure 40>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration D” and a net 2 having a “net configuration j”.

■ <Union structure 41>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration E” and a net 2 having a “net configuration a”.

■ <Union structure 42>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration E” and a net 2 having a “net configuration b”.

■ <Union structure 43>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration E” and a net 2 having a “net configuration c”.

■ <Union structure 44>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration E” and a net 2 having a “net configuration d”.

■ <Union structure 45>
Casing X with a net for food includes non-woven fabric 1 of “non-woven fabric configuration E” and “net configuration e”.

■ <Union structure 46>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration E” and a net 2 having a “net configuration f”.

■ <Union structure 47>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration E” and a net 2 having a “net configuration g”.

■ <Union structure 48>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration E” and a net 2 having a “net configuration h”.

■ <Union structure 49>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration E” and a net 2 having a “net configuration i”.

■ <Union structure 50>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration E” and a net 2 having a “net configuration j”.

■ <Union structure 51>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration F” and a net 2 having a “net configuration a”.

■ <Union structure 52>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration F” and a net 2 having a “net configuration b”.

■ <Union structure 53>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration F” and a net 2 having a “net configuration c”.

■ <Union Composition 54>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration F” and a net 2 having a “net configuration d”.

■ <Union composition 55>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration F” and a net 2 having a “net configuration e”.

■ <Union structure 56>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration F” and a net 2 having a “net configuration f”.

■ <Union structure 57>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration F” and a net 2 having a “net configuration g”.

■ <Union structure 58>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration F” and a net 2 having a “net configuration h”.

■ <Union structure 59>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration F” and a net 2 having a “net configuration i”.

■ <Union structure 60>
The casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration F” and a net 2 having a “net configuration j”.

As shown in FIGS. 1 to 3, the casing X with a net for food is obtained by heat laminating the nonwoven fabric 1 and the net 2 of <combination configurations 1 to 60>.
In the casing X with a net for food, the non-woven fabric NF with a net (non-woven fabric sheet with a net) is formed by thermally laminating the non-woven fabric 1 and the net 2.

  Hereinafter, the process of manufacturing the casing X with a net for food will be described with reference to FIGS. 1 to 3.

During the thermal lamination, the nonwoven fabric 1 and the net 2 are laminated (hereinafter referred to as “lamination process”).
In the laminating step, as shown in FIGS. 1 and 2, the net 2 is laminated over the surface 1A of the nonwoven fabric 1, and the surface 1A of the nonwoven fabric 1 and the back surface 2B of the net 2 are brought into contact with each other.

The thermal laminate heats the nonwoven fabric 1 and the net 2 with a melting point (hereinafter referred to as “heating temperature Tm”) equal to or higher than the glass transition point of the thermoplastic fiber (or thermoplastic synthetic fiber) (hereinafter referred to as “heating step”). ).
In the heating step, as shown in FIG. 2B, the nonwoven fabric 1 and the net 2 are heated from the back surface 1B of the nonwoven fabric 1, and the thermoplastic synthetic fiber of the nonwoven fabric 1 and the thermoplastic resin on the back surface 2B side of the net 2 (or Thermoplastic synthetic fibers) are melted.
The heating temperature Tm differs depending on <combination structures 1 to 60>, and the melting point of the polyethylene resin (or polyethylene fiber) contained in the nonwoven fabric 1 or the net 2 or the melting point of the polyester resin (or polyester fiber) or the net 2 The melting point of the low melting point polyethylene resin (or low melting point polyethylene fiber) contained, the melting point of the low melting point polyester resin (or low melting point polyester fiber), or the melting point of the polypropylene resin (or polypropylene fiber) contained in the net 2 can be adopted. Or it is melting | fusing point which can fuse | melt several types of thermoplastic resins (or thermoplastic synthetic fiber).
In the heating step, when the nonwoven fabric 1 and the net 2 are heated from the back surface 1B of the nonwoven fabric 1, the surface 1A side of the net is hardly melted.
Thereby, on the surface 2A side of the net 2, deformation and melting due to heating are suppressed, and the net shape can be maintained.
In the heating step, the heating time tm of the nonwoven fabric 1 and the net 2 can melt the thermoplastic synthetic fiber of the nonwoven fabric 1 and the thermoplastic resin (or thermoplastic fiber) on the back surface 2B side of the net 2, and the surface 2A side of the net 2 is heated. It is a time not to be deformed or melted, and based on the type of thermoplastic resin and thermoplastic synthetic fiber, the mass% blending ratio, the cloth thickness ht of the nonwoven fabric 1, the dimension of the wire 2a of the net 2, the mesh dimension, the mesh pitch, etc. It is selected appropriately.

In the thermal lamination, the nonwoven fabric 1 and the net 2 are pressed with pressure P (hereinafter referred to as “pressing process”).
In the pressure welding process, as shown in FIG. 2B, the surface 1A of the nonwoven fabric 1 and the surface 2A of the net 2 are pressure-bonded.
In the pressure welding step, when the nonwoven fabric 1 and the net 2 are pressure-welded at a pressure P, the molten thermoplastic synthetic fiber of the nonwoven fabric 1 comes into contact with the back surface 2B side of the net 2 as shown in FIG. The molten thermoplastic resin (or thermoplastic synthetic fiber) enters between the fibers of the nonwoven fabric 1 while contacting the molten thermoplastic synthetic fiber of the nonwoven fabric 1, and bonds the nonwoven fabric 1 and the net 2. The molten thermoplastic synthetic fiber and the molten thermoplastic resin serve as a binder (adhesive) for bonding the nonwoven fabric 1 and the net 2.
The pressure P in the pressure-contacting process is a pressure that can sufficiently press the nonwoven fabric 1 and the net 2 and does not deform the net 2 by crushing. The kind of the thermoplastic resin and the thermoplastic synthetic fiber, the mass% blending ratio, the cloth thickness hf of the nonwoven fabric 1 These are appropriately selected based on the dimensions of the wire 2a of the net 2, the mesh size, the mesh pitch, and the like.
The pressure welding process is performed simultaneously with the heating process, and the nonwoven fabric 1 and the net 2 are pressure-welded at the pressure P while being heated at the heating temperature Tm.

After the thermal lamination, the nonwoven fabric 1 and the net 2 are cooled (hereinafter referred to as “cooling step”).
In the cooling step, the melted thermoplastic synthetic fiber and the melted thermoplastic resin are cooled and solidified to be bonded together.
The entire back surface 2B side of the net 2 is in close contact with the surface 1B of the nonwoven fabric 1, and is integrated with the cooled and solidified thermoplastic synthetic fiber and the cooled and solidified thermoplastic resin (or thermoplastic synthetic fiber).
Thereby, the nonwoven fabric NF with a net | network which consists of the nonwoven fabric 1 and the net | network 2 is comprised.
The net nonwoven fabric NF is a structure in which the entire back surface 2B of the net 2 is integrated (adhered) to the front surface 1A of the nonwoven fabric 1, so that the net 2 is hard to peel off from the nonwoven fabric 1 and is firmly bonded.

The nonwoven fabric 1 and the net 2 are heat laminated using a laminating machine T as shown in FIG.
Moreover, the laminating machine T performs a lamination process, a heating process, a pressure welding process, and a cooling process.

The nonwoven fabric 1 and the net 2 are heat laminated using a laminating machine T as shown in FIG.
Moreover, the laminating machine T performs a lamination process, a heating process, a pressure welding process, and a cooling process.

In FIG. 3, the laminating machine T includes a nonwoven fabric roll FR, a net roll NR, a heating roller TR, a pressure roller PR, a cooling roller CR, and a winding roll MR.
The nonwoven fabric roll FR is formed by winding a belt-shaped nonwoven fabric 1 with a constant width H. The net roll NR is formed by winding a belt-like net 2 with a constant width H.
The heating roller TR is disposed downstream of the nonwoven fabric roll FR and the net roll NR, and heats the nonwoven fabric 1 and the net 2 at the heating temperature Tm. The heating roller TR makes line contact with the back surface 1B of the nonwoven fabric 1 over the width direction HT of the nonwoven fabric 1.
The pressure roller PR is disposed downstream of the nonwoven fabric roll FR and the net roll NR, and presses the net 2 and the nonwoven fabric 1 against the heating roller TR with a linear pressure P. The pressure roller PR is in line contact with the surface 2A of the net 2 over the width direction HT of the net 2 and presses the nonwoven fabric 1 and the net 2 with the linear pressure P.
The cooling roller CR is disposed downstream of the heating roller TR and the pressure roller PR, and contacts the back surface 1B of the nonwoven fabric 1. The winding row MR is disposed downstream of the cooling roller CR.

The laminating machine T rotates the heating roller TR and the pressure roller PR, and sends the nonwoven fabric 1 of the nonwoven fabric roll FR and the net 2 of the net roll NR between the rows TR and PR as the rollers TR and PR rotate. . The heating roller TR and the pressure roller PR scan the nonwoven fabric 1 and the net 2 at a feeding speed V in a feeding direction VT orthogonal to the width direction H.
The net 2 fed between the rollers TR and PR is laminated over the surface 1A of the nonwoven fabric 1. The net 2 and the nonwoven fabric 1 are laminated by contacting the back surface 2B of the net 2 and the surface 1A of the nonwoven fabric 1 (lamination process).

  The heating roller TR heats the nonwoven fabric 1 and the net 2 at a heating temperature Tm to melt the thermoplastic synthetic fiber of the nonwoven fabric 1 and the thermoplastic resin (or thermoplastic synthetic fiber) on the back surface 2B side of the net 2 (heating). Process).

At the same time as the heating process, the pressure roller PR presses the net 2 and the nonwoven fabric 1 with the linear pressure P against the heating roller TR (pressure welding process).
Thereby, the surface 1A of the nonwoven fabric 1 and the back surface 2B side of the net 2 are pressure-bonded. At this time, the molten thermoplastic synthetic fiber of the nonwoven fabric 1 is brought into contact with the back surface 2B side of the net 2, and the molten thermoplastic resin (or thermoplastic synthetic fiber) on the back surface 2B side of the net 2 is melted thermoplastic synthetic. It also enters between the fibers of the nonwoven fabric 1 while contacting the fibers, and bonds the nonwoven fabric 1 and the net 2 together.

  The laminating machine T adjusts the feed speed V of the nonwoven fabric 1 and the net 2 by controlling the rotation speeds of the heating roller TR and the pressure roller PR. The feed speed V is a time for bringing the nonwoven fabric 1 and the net 2 into contact with the heating roller TR and the pressure roller PR, and is a heating time tm.

The heating roller TR and the pressure roller PR send the nonwoven fabric 1 and the net 2 to the cooling roller CR. The nonwoven fabric 1 and the net 2 are cooled in contact with the cooling roller CR (cooling step).
At this time, the molten thermoplastic resin (or thermoplastic synthetic fiber) on the side of the back surface 2B of the net 2 and the molten thermoplastic fiber of the nonwoven fabric 1 are cooled and solidified and are integrally bonded.
Thereby, the nonwoven fabric 1 and the net | network 2 are integrated with the thermoplastic synthetic fiber and thermoplastic resin which were solidified by cooling, and comprise the nonwoven fabric NF with a net | network.
The net-attached non-woven fabric NF (strip-shaped net-attached non-woven fabric sheet) is sent from the cooling roller CR to the take-up roll MR. The winding roll MR winds the nonwoven fabric NF with a net.
In this way, the nonwoven fabric 1 and the net 2 are thermally laminated using the laminating machine T, so that the net nonwoven fabric NF, which is the casing X with food net, can be continuously formed, so that an inexpensive packaging material can be provided. .

  The casing X with a net for food employs <Combination Configuration 1> to <Combination Configuration 60>, and in particular, the nonwoven fabric 1 and the net 2 configured to contain the same thermoplastic resin (or thermoplastic synthetic fiber). Are preferably combined.

  Next, specific usage modes 1 and 2 of the casing X with a net for food will be described with reference to FIGS. 1 and 4 to 9.

<Usage form 1>
In the casing X with a net for food, the non-woven fabric NF with a net is formed into a tubular bag body XF by thermocompression bonding as shown in FIGS.
Hereinafter, the process of manufacturing the cylindrical bag body XF will be described.

First, as shown in FIG. 1, the cylindrical bag body XF is formed from a non-woven fabric with a net NF having a constant width H.
In FIG. 4, the net-attached nonwoven fabric NF is folded (hereinafter referred to as “folding step”).
In the folding process, both ends NF1, NF2 in the width direction HT of the nonwoven fabric NF with a net are folded back to the back side 1B of the nonwoven fabric 1, and the both ends NF1, NF2 are further overlapped.
Thereby, the nonwoven fabric NF with a net | network is formed in the cylindrical body NT, and arrange | positions the net | network 2 on the cylindrical body NT outer side (outer periphery) (refer FIG. 4).
As shown in FIG. 4, both ends NF1 and NF2 of the nonwoven fabric NF with a net are overlapped over a longitudinal direction VT orthogonal to the width direction HT to form an overlapping region KT.

Next, in the nonwoven fabric NF with a net of the cylindrical body NT, the overlapping region KT is heat-bonded (hereinafter referred to as “vertical heat-bonding process”).
In the vertical thermocompression bonding step, the net 2 and the nonwoven fabric 1 are heated at the heating temperature Km in the overlapping region KT, and at the same time, the nonwoven fabric 1 and the net 2 are pressed against each other with the pressure PK.
In the longitudinal thermocompression bonding step, as shown in FIG. 4B, the nonwoven fabric 1 and the net 2 in the overlapping region KT are heated from the net 2 side of the cylindrical body NT, so that the thermoplastic synthetic fiber and the net 2 of the nonwoven fabric 1 The thermoplastic resin (or thermoplastic synthetic fiber) is melted.
The heating temperature Km is a melting point equal to or higher than the glass transition point of the thermoplastic synthetic fiber (or thermoplastic resin), and is different in the above <Combination configurations 1 to 60>. The heating temperature Km of <combination structures 1-60> is the same as that described in the heating process of the thermal laminate.
In the longitudinal thermocompression bonding process, simultaneously with the heating, the nonwoven fabric 1 and the net 2 in the overlapping region KT are pressed into contact with the pressure PK.
In the longitudinal thermocompression bonding step, when the nonwoven fabric 1 and the net 2 in the overlapping region KT are pressed with pressure PK, the thermoplastic synthetic fiber melted at one end NF1 of the nonwoven fabric 1 has both ends NF1, NF2, as shown in FIG. The thermoplastic fiber which is in contact with the net 2 between them and enters the fibers at the other end NF2 while in contact with the molten thermoplastic synthetic fiber and melted at the other end NF2 of the nonwoven fabric 1 is the net between the ends NF1 and NF2. 2 and further enters between the fibers of one end NF1 while in contact with the molten thermoplastic synthetic fiber. The molten thermoplastic resin (or thermoplastic synthetic fiber) in the net 2 between the ends NF1 and NF2 also enters between the fibers at the ends NF1 and NF2.
Thereby, the melted thermoplastic synthetic fiber and the melted thermoplastic resin pressure-bond both ends NF1 and NF2 of the nonwoven fabric 1 in the overlapping region KT.

Subsequently, in the nonwoven fabric NF with a net, the uniaxial end NT1 of the cylindrical body NT is subjected to thermocompression bonding (hereinafter referred to as “lateral thermocompression bonding process”).
In the transverse thermocompression bonding step, as shown in FIG. 5, the nonwoven fabric 1 and the net 2 are heated at the heating temperature Km over the width direction HT orthogonal to the axial direction JT of the cylindrical body NT, and the thermoplastic synthetic fiber of the nonwoven fabric 1 and The thermoplastic resin (or thermoplastic synthetic fiber) of the net 2 is melted.
In the transverse thermocompression bonding process, simultaneously with the heating, the nonwoven fabric 1 and the net 2 are brought into pressure contact with the pressure PK at the uniaxial end NT of the cylindrical body NT.
As shown in FIG. 5 (b), the uniaxial end NT1 of the cylindrical body NT is formed by laminating nonwoven fabrics NF with a net, and the molten thermoplastic synthetic fibers of the nonwoven fabric 1 on the lower side are melted thermoplastic synthetics. It also enters between the fibers of the nonwoven fabric 1 on the upper side while contacting the fibers. The molten thermoplastic synthetic fiber of the nonwoven fabric 1 on the upper side also enters between the fibers of the nonwoven fabric 1 on the lower side while being in contact with the molten thermoplastic synthetic fiber.
Thereby, the molten thermoplastic synthetic fiber adheres the upper and lower nonwoven fabrics 1 and 1 at the uniaxial end NT of the tubular body 1.

After the transverse heat pressing process, the cylindrical body NT is cut (hereinafter referred to as “cutting process”).
In the cutting step, as shown in FIGS. 5A and 6, cutting is performed at a position separating the length L from the one axial end NT of the cylindrical body 1 in the axial direction JT of the cylindrical state NT.
The cylindrical body NT is cut across the width direction HT.
Thereby, as shown in FIG. 6, the nonwoven fabric NF with a net is formed in the cylindrical bag body XF.

When the cylindrical bag body XF is naturally cooled, the molten thermoplastic synthetic fiber of the non-woven fabric 1 and the molten thermoplastic resin (or thermoplastic synthetic fiber) of the net 2 are cooled and solidified and integrally bonded.
Thereby, the cylindrical bag body XF is peeled off because the nonwoven fabric 1 and the net 2 are integrated by the cooled and solidified thermoplastic synthetic fiber and thermoplastic resin (or thermoplastic synthetic fiber) in the overlapping region KT and the uniaxial end NT1. It is difficult to bond firmly.

As shown in FIG. 7, the net nonwoven fabric NF is thermocompression bonded using a center press seal bag making machine A.
The center press seal bag making machine A executes a folding process, a vertical heat pressing process, a horizontal heat pressing process, and a cutting process.

  In FIG. 7, the center press seal bag making machine A includes a pair of folding rods OS, OS, a folding guide OG, a pair of conical rollers ER, ER, a longitudinal heating crimping machine VH, a lateral heating crimping machine HH, and a cutting machine CM. Etc.

In the center press seal bag making machine A, the non-woven fabric NF with a belt having a constant width H is fed between the bending rods OS, OS with the back surface 1B of the non-woven fabric 1 facing upward as shown in FIG. . The bending guide OG is located on the back surface 1B of the nonwoven fabric 1 and positioned between the bending bars OS, OS.
In the center press seal bag making machine A, the net nonwoven fabric NF is fed between the bending rods OS and OS, and the net 2 side (the surface 1A side of the nonwoven fabric 1) is brought into contact with the folding rods OS and OS. In the nonwoven fabric NF with a net, both ends NF1 and NF2 in the width direction HT are brought into contact with the bending rods OS and OS.
Each folding rod OS, OS folds back both ends NF1, NF2 of the nonwoven fabric with a net NF to the back surface 1B of the nonwoven fabric 1 and comes into contact with the folding guide OG.

  Subsequently, the net-attached nonwoven fabric NF is creased by the conical rollers ER and ER on the downstream side of the bending guide OG to form an overlapping region KT (folding step).

Thereby, nonwoven fabric NF with a net | network is formed in the cylindrical body NT, and the cylindrical body NT is sent into the vertical heating pressure bonding machine VH and the horizontal heating pressure bonding machine HH.
The vertical thermocompression bonding machine VH performs thermocompression bonding on the overlapping region KT (longitudinal thermocompression bonding process), and the horizontal thermocompression bonding machine HH performs thermocompression bonding on the uniaxial end NT1 of the cylindrical body NT (transverse thermocompression bonding process).

Subsequently, the cylindrical body NT (non-woven fabric NF with a net) is cut with a cutting machine CM (cutting step).
Thereby, the nonwoven fabric NF with a net | network is formed in the cylindrical bag body XF (casing X with a net | network for foodstuffs).
In this way, the tubular bag XF, which is the casing X with food net, can be continuously formed by thermocompression bonding of the nonwoven fabric NF with net using the center press seal bag making machine A. Can provide materials.

The cylindrical bag body XF (casing X with food net) is filled with raw meat (meat lump) such as ham and bacon to form, package and manufacture processed meat products. After the raw meat is packed in the cylindrical bag body XF, the opening shaft end NT2 (see FIG. 6) of the cylindrical bag body XF is closed by thermocompression.
The thermocompression bonding of the opening shaft end NT2 of the cylindrical bag body XF is performed at the same heating temperature Km and pressure PK as the thermocompression bonding (lateral thermocompression bonding step) of the uniaxial end NT1 of the tubular body NT.
As shown in FIG. 6, the cylindrical bag body XF is formed by integrating the net 2 on the surface 1 </ b> A (outer periphery of the cylindrical bag body XF) of the nonwoven fabric 1 and further forming the net 2 with a thermoplastic resin (or thermoplastic synthetic fiber). doing.
Thereby, when raw material meat is packed in the cylindrical bag body XF, the net 2 is elastically deformed following the shape of the raw material meat and adheres to the raw material meat surface together with the nonwoven fabric 1. In the tubular bag body XF, the nonwoven fabric 1 and the net 2 are brought into close contact with the raw material meat surface to cooperate to maintain the raw material meat shape, and the net 2 exhibits a decorative effect (mesh pattern).
Moreover, even if raw material meat is packed in the cylindrical bag body XF, the net 2 is not detached from the nonwoven fabric 1 and is not mixed into the raw material meat.

Subsequently, the cylindrical bag XZ packed with the raw meat is smoked after being dried. Smoke is a process in which raw meat is smoked with smoke such as cherry chips to improve storage stability and to add a decorative color, aroma and flavor to the appearance of the raw material meat. At this time, the cylindrical body XF (casing X with food net) encloses the raw material meat with the nonwoven fabric 1, so that the smoke comes into contact with the raw material meat through the fibers of the nonwoven fabric 1.
Further, since the net 2 is integrated with the surface 1A of the nonwoven fabric 1 and does not come into contact with the raw material meat, soot smoke passes through the fibers of the nonwoven fabric 1 even in the portion where the net 2 and the nonwoven fabric 1 are integrated (adhered). To touch.
Thereby, in cylindrical bag XF (casing X with a net for foodstuffs), soot can be contacted over the whole raw material meat (all surfaces), and the decoration coloring, flavoring, and seasoning spots by soot can be controlled.

After smoking, the cylindrical bag body XF packed with raw meat is steamed. Steaming is a process of heat sterilizing the inside of the raw meat with hot water or steam.
Since the cylindrical bag body XF (casing X with food net) has the net 2 integrated with the surface 1A of the non-woven fabric 1, steam or the like contacts the raw meat through the fibers of the non-woven fabric 1 as in the smoke process. . Even in the part where the nonwoven fabric 1 and the net 2 are integrated, the raw material meat is contacted through the fibers of the nonwoven fabric 1.
Thereby, the raw material meat of the cylindrical bag body 1 can be sterilized by heating sufficiently to the inside.
In addition, as for raw material meats, such as ham and bacon, a smoke process and a steaming process are suitably selected as needed.
The cylindrical body XF packed with raw meat is shipped as a processed meat product through a cooling process, a secondary packaging process, and the like. In the secondary packaging process, the cylindrical bag body XF packed with raw material meat is vacuum-packed, and the nonwoven fabric 1 absorbs moisture during the vacuum puncture and becomes transparent. Thereby, raw material meat (smoke and steamed raw material meat) packed through the transparent nonwoven fabric 1 can be visually observed.
In addition, in the cylindrical bag body XF, raw material kneaded fish meat or processed milk product raw material card is packed into the cylindrical bag body XF, and processed fish meat products such as fish sausage and fish ham, or milk such as cheese Processed products can also be molded, packaged and manufactured.

<Usage form 2>
In the casing X with a net for food, the non-woven fabric NF with a net is thermocompression-bonded to form the cylindrical body NT. The net nonwoven fabric NF formed on the cylindrical body NT is formed in a shard shape.
First, as shown in FIG. 1, the cylindrical body NT is formed from a strip-shaped nonwoven fabric 1 with a net having a constant width H.
As shown in FIG. 4, the cylindrical body NT performs the folding process and the longitudinal heat pressing process as in the usage mode 1, and heats the net 2 and the nonwoven fabric 1 at the heating temperature Km in the overlapping region KT, The nonwoven fabric 1 and the net 2 are pressed.
In the vertical thermocompression bonding step, the nonwoven fabric 1 and the net 2 in the overlapping region KT are pressed with pressure PK, so that the nonwoven fabric 1 and the net 2 are crimped to form the cylindrical body NT.

Subsequently, the cylindrical body NT is formed in a shard shape as shown in FIGS.
The cylindrical body NT is formed in a shard shape using the shard machine B.

  8 and 9, the shard machine B includes a shard shaft SB and a feed mechanism (not shown) for sending the cylindrical body NT to the shard shaft SB.

The cylindrical body NT is mounted on the shard shaft SB with the shard shaft SB disposed inside.
The shard machine B has a stopper ST that comes into contact with one axial end NT1 of the cylindrical body NT, and sends the cylindrical body NT toward the stopper ST (hereinafter referred to as “shard process”).
In the shard process, since the stopper ST is in contact with the one axial end NT of the cylindrical body NT, the cylindrical body NT is retracted in the axial direction JT as shown in FIG. Formed.
Thereby, the cylindrical body NT becomes a structure that can be expanded and contracted in the axial direction JT.
Moreover, in the cylindrical body NT, since the nonwoven fabric 1 and the net 2 are integrated by thermal lamination, the net 2 does not come off the nonwoven fabric 1 even if the cylindrical body NT is processed into a shard shape.

A shard-like cylindrical body NT (casing X with a net for food) is filled with raw kneaded meat such as sausage, and a processed meat product is formed, packaged and manufactured. The raw kneaded meat is prepared by adding seasonings and the like to the minced meat.
When filling the raw kneaded meat, the shard-shaped cylindrical body NT is mounted on a continuous meat filling machine W such as a double clipper, and as shown in FIG. 9B, the uniaxial end NT1 of the cylindrical body NT is clipped CR. And is stretched in the axial direction JT while filling the raw material meat. As shown in FIG. 9B, the shard-like cylindrical body NT is formed by integrating the net 2 on the surface 1A (the outer periphery of the cylindrical body NT) of the nonwoven fabric 1, and further forming the net 2 with a thermoplastic resin (or thermoplastic synthetic material). Fiber).
Thus, when the raw slab-shaped body NT is filled with the raw kneaded meat, the net 2 cooperates with the non-woven fabric 1 to form the raw kneaded meat into a columnar shape (a shape such as sausage), and further a decorative effect (mesh) Demonstrate). Further, even if the raw kneaded meat is filled in the shard-like cylindrical body NT, the net 2 does not come off the nonwoven fabric 1 and does not enter the raw kneaded meat.
When the shard-like cylindrical body NT is elongated and filled with the raw meat paste, the opening shaft end NT2 of the cylindrical body NT is closed with the clip CR to form the cylindrical bag body XF1.

Subsequently, the cylindrical body NT filled with the raw meat paste is smoked. The smoke is in contact with the raw material kneaded meat through the fibers of the nonwoven fabric 1 as in the usage pattern 1. Even in the part where the nonwoven fabric 1 and the net 2 are integrated, the smoke comes into contact with the raw material meat through the fibers of the nonwoven fabric 1.
Thereby, in the cylindrical bag body NT, smoke can be contacted over the whole raw material kneaded meat (all the surfaces), and the decoration coloring, scenting, and seasoning spots by smoke can be suppressed.

After smoking, the cylindrical bag body XF1 filled with the raw meat paste is steamed. Similarly to the usage pattern 1, steam and the like come into contact with the raw kneaded meat through the fibers of the nonwoven fabric 1. Even in a portion where the nonwoven fabric 1 and the net 2 are integrated, steam or the like contacts the raw material meat through the fibers of the nonwoven fabric 1.
Thereby, the raw material meat of the cylindrical bag body XF1 can be sterilized by heating sufficiently to the inside.
And the cylindrical bag body XF1 filled with raw material paste meat is shipped etc. as a processed meat product through a cooling process, a secondary packaging process, etc. In the secondary packaging process, the cylindrical bag body XF1 packed with raw material meat is vacuum-packed, and the nonwoven fabric 1 absorbs moisture during the vacuum puncture and becomes transparent. Thereby, raw material meat (smoke and steamed raw material meat) packed through the transparent nonwoven fabric 1 can be visually observed.
In addition, in a shard-shaped cylindrical body NT, raw material kneaded fish meat or processed milk product raw material card is formed, and processed fish products such as fish sausage and fish ham, or milk processed products such as cheese are formed. It can also be packaged and manufactured.

In usage forms 1 and 2, for example, raw meat such as grilled pork and raw meat of processed meat products is packed in a cylindrical bag XF or a cylindrical body NT, and immersed in a seasoning liquid such as soy sauce and cooked by boiling. You can also. At this time, the seasoning liquid comes into contact with the raw material meat through the fibers of the nonwoven fabric 1, and also comes into contact with the raw material meat through the fibers of the nonwoven fabric 1 even in a portion where the nonwoven fabric 1 and the net 2 are integrated.
Thereby, the stew spot of raw material meat can be controlled.

  In the usage forms 1 and 2, by appropriately selecting the width H and the length L of the nonwoven fabric NF with a net, the cylindrical bag body XF or the cylindrical body NT can have an optimal volume for the raw material meat.

Another casing with a net for food according to the present invention will be described with reference to FIGS.
10 and 11, the same reference numerals as those in FIGS. 1 to 9 indicate the same members and the same configurations, and thus detailed description thereof will be omitted.

  The other casing X with a net for food includes the nonwoven fabric 1 and a net 22 composed of plant fibers or rayon fibers, and can be configured by thermally laminating the nonwoven fabric 1 and the net 22.

  The other casing X with a net for food includes the nonwoven fabric 1 of <nonwoven fabric configuration A> to <nonwoven fabric configuration F>.

The net | network 22 is equipped with a softness | flexibility by containing a vegetable fiber or a rayon fiber.
As shown in FIGS. 10 and 11, the net 22 has a plurality of wire rods 22a, and each wire rod 22a forms a mesh 22C (mesh).
The net 22 can be composed of colored plant fibers such as black, white, red, green, yellow and blue, or colored rayon fibers.
The net 22 is formed, for example, by arranging rhombus meshes 22C in a grid pattern. The mesh of the net 2 is not limited to the rhombus mesh, and a square mesh, a rectangular mesh, a trapezoidal mesh, a hexagonal mesh, or the like can be adopted.
The net 22 employs net configurations k and l as a specific configuration.

■ <Net configuration k>
The net 22 is configured by braiding plant fiber wires (strings) in a mesh lattice (no-node network), or by connecting plant fiber wires (strings) in a mesh grid (nodule network).
Plant fibers are cotton fibers, hemp fibers, pulp fibers and the like.

■ <Net configuration l>
The net 22 is formed by braiding rayon fiber wires (strings) in a mesh lattice (no-node network), or by connecting rayon fiber wires (strings) in a mesh lattice (nodule network).

  In the other casing X with a net for food, the combination of the nonwoven fabric 1 and the net 22 employs combination configurations 51 to 62.

■ <Union structure 51>
The other casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration A” and a net 22 having a “net configuration k”.

■ <Union structure 52>
The other casing X with a net for food includes the nonwoven fabric 1 having the “nonwoven fabric configuration A” and the net 22 having the “net configuration l”.

■ <Union structure 53>
The other casing X with a net for food includes the nonwoven fabric 1 having the “nonwoven fabric configuration B” and the net 22 having the “net configuration k”.

■ <Union Composition 54>
The other casing X with a net for food includes the nonwoven fabric 1 having the “nonwoven fabric configuration B” and the net 22 having the “net configuration l”.

■ <Union composition 55>
The other casing X with a net for food includes the nonwoven fabric 1 having the “nonwoven fabric configuration C” and the net 22 having the “net configuration k”.

■ <Union structure 56>
The other casing X with a net for food includes the nonwoven fabric 1 having the “nonwoven fabric configuration C” and the net 22 having the “net configuration l”.

■ <Union structure 57>
The other casing X with a net for food includes the nonwoven fabric 1 having the “nonwoven fabric configuration D” and the net 22 having the “net configuration k”.

■ <Union structure 58>
The other casing X with a net for food includes the nonwoven fabric 1 having the “nonwoven fabric configuration D” and the net 22 having the “net configuration l”.

■ <Union structure 59>
The other casing X with a net for food includes the nonwoven fabric 1 having the “nonwoven fabric configuration E” and the net 22 having the “net configuration k”.

■ <Union structure 60>
The other casing X with a net for food includes the nonwoven fabric 1 having the “nonwoven fabric configuration E” and the net 22 having the “net configuration l”.

■ <Union structure 61>
The other casing X with a net for food includes the nonwoven fabric 1 having the “nonwoven fabric configuration F” and the net 22 having the “net configuration k”.

■ <Union structure 62>
The other casing X with a net for food includes a nonwoven fabric 1 having a “nonwoven fabric configuration F” and a net 22 having a “net configuration l”.

  As shown in FIGS. 10 and 11, the other casing X with a net for food is formed by heat laminating the nonwoven fabric 1 and the net 22 of <combination configurations 51 to 62>.

In the thermal lamination, the nonwoven fabric 1 and the net 22 are laminated.
In the laminating step, as shown in FIGS. 10 and 11, the net 22 is laminated over the surface 1 </ b> A of the nonwoven fabric 1, and the surface 1 </ b> A of the nonwoven fabric 1 and the back surface 22 </ b> B of the net 22 are brought into contact.

The thermal laminate heats the nonwoven fabric 1 and the net 22 with a melting point (heating temperature Tm) equal to or higher than the glass transition point of the thermoplastic synthetic fiber of the nonwoven fabric 1 (heating step).
In the heating step, as shown in FIG. 11 (b), the nonwoven fabric 1 and the net 22 are heated from the back surface 1 </ b> B of the nonwoven fabric 1 to melt the thermoplastic synthetic fiber of the nonwoven fabric 1.
The heating temperature Tm is different depending on the <combination structures 51 to 62>, and is a melting point at which the melting point of the polyethylene fiber and the melting point of the polyester fiber contained in the nonwoven fabric 1 can be adopted and one or more kinds of thermoplastic synthetic fibers can be melted.

  In the heating step, the heating time tm of the nonwoven fabric 1 and the net 2 is a time during which the thermoplastic synthetic fiber of the nonwoven fabric 1 can be melted and the surface 22A side of the net 11 is not thermally deformed. The thickness is selected as appropriate based on the fabric thickness hf of the non-woven fabric 1, the size of the wire rod, the mesh size, the mesh pitch, and the like.

In the thermal lamination, the nonwoven fabric 1 and the net are pressed with pressure PP (pressing process).
In the pressure welding step, as shown in FIG. 11B, the front surface 1A of the nonwoven fabric 1 and the back surface of the net are pressure-bonded.
When the nonwoven fabric 1 and the net 22 are pressure-welded in the pressure welding step, the thermoplastic synthetic fiber melted in the nonwoven fabric 1 is plant fiber (or rayon fiber) on the back side of the net 22 as shown in FIG. The nonwoven fabric 1 and the net 22 are bonded together by entering between the plant fibers (or rayon fibers) of the net 22 and entangled with the plant fibers (or rayon fibers).
The melted thermoplastic synthetic fiber of the nonwoven fabric 1 becomes a binder (adhesive) for bonding the nonwoven fabric 1 and the net 22.
The pressure PP in the pressure welding process is a pressure that can sufficiently press the nonwoven fabric 1 and the net 22 and does not deform the net 22 by crushing. The kind of thermoplastic synthetic fiber of the nonwoven fabric 1, the mass% blending ratio, the cloth thickness ht of the nonwoven fabric 1, The net 22 is appropriately selected based on the size of the wire, the mesh size, the mesh pitch, and the like.
The pressure welding step is performed simultaneously with the heating step, and the nonwoven fabric 1 and the net 22 are pressure-welded at the pressure P1 while being heated at the heating temperature Tm.

After the thermal lamination, the nonwoven fabric 1 and the net are cooled (cooling step).
In the cooling step, the melted thermoplastic synthetic fiber of the nonwoven fabric 1 is cooled and solidified and integrally bonded to the plant fiber (or rayon fiber) of the net 22.
The entire back surface 22B side of the net 22 is integrated with the thermoplastic synthetic fiber that is in close contact with the surface 1B of the nonwoven fabric 1 and cooled and solidified.
Thereby, the nonwoven fabric nf with a net | network consisting of the nonwoven fabric 1 and the net | network 22 is comprised.
The net-attached nonwoven fabric nf2 is a structure in which the net 22 is not easily peeled off from the nonwoven fabric 1 because the entire back surface 22B of the net 22 is integrated (adhered) to the front surface 1A of the nonwoven fabric 1.
The nonwoven fabric 1 and the net 22 are heat-laminated using the laminating machine T as described in FIG.

The net nonwoven fabric nf is formed into a cylindrical bag body by thermocompression bonding as described with reference to FIGS. 4 to 6.
Moreover, the nonwoven fabric nf with a net is formed in a cylindrical bag body or a cylindrical body using the center press seal bag making machine A, as described in FIG.

And a raw meat (meat lump), such as ham and bacon, is packed in a cylindrical bag body (casing X with a net for food), for example, and a processed meat product is formed, packaged and manufactured.
In addition, the cylindrical bag body XF2 is formed in a shard shape by the shard machine B as described with reference to FIG. 9, and for example, raw meat (kneaded meat) such as sausage is sharded by a continuous meat filling machine W such as a double clipper. The processed meat product is molded, packaged and manufactured by packing it into a cylindrical body.

Next, the specific structure of the casing with a net for food will be described with reference to Examples 1 to 9.
Moreover, in Example 1 thru | or Example 9, the characteristic evaluation of a casing with a net | network for foods (a nonwoven fabric with a net | network, a cylindrical bag body) is shown (refer Table 1).

<Example 1>
The casing X with a net for food of Example 1 includes a non-woven fabric A and a net A (corresponding to <combination structure 45>), and is formed by thermally laminating the non-woven fabric A and the net A.

The nonwoven fabric A of Example 1 is made by making a paper made of a raw fiber mixed with a plurality of types of thermoplastic synthetic fibers A, B, and C (hereinafter referred to as “synthetic fibers A, B, and C”) with a circular net paper machine. It is a sheet-like wet nonwoven fabric.
The synthetic fiber A is a core-sheath structure fiber having polyester as a core and polyethylene as a sheath. The synthetic fiber A has a fiber thickness of 0.55 to 5.5 dtx and a fiber length of about 2.0 to 12.0 mm, and particularly preferably a fiber thickness of 2.2 dtx and a fiber length of 10 mm. As a specific example of the synthetic fiber A, “trade name Melty (registered trademark) 6080” manufactured by Unitika Ltd. is used.
Synthetic fiber B is a core-sheath structure fiber having polyester as a core and low melting point polyester as a sheath. The synthetic fiber B has a fiber thickness of 0.55 to 5.5 dtx and a fiber length of about 2.0 to 12.0 mm, particularly preferably a fiber thickness of 2.2 dtx and a fiber length of 5.0 mm. As a specific example of the synthetic fiber B, “trade name Sophiet (registered trademark) N720” manufactured by Kuraray Co., Ltd. is used.
The synthetic fiber C is an ultrafine polyester fiber. Synthetic fiber C enables the transfer of wet paper on the nonwoven fabric and between the nonwoven fabrics by entwining the synthetic fibers when making the fiber raw material with a circular net paper machine. The synthetic fiber C has a fiber thickness of 0.1 to 0.55 dtx and a fiber length of about 2.0 to 5.0 mm, particularly preferably a fiber thickness of 0.1 dtx and a fiber length of 3.0 mm. As a specific example of the synthetic fiber C, “trade name TA04PN” manufactured by Teijin Limited is used.
The blending ratio of the synthetic fibers A, B, and C is 45 mass% for the synthetic fiber A, 50 mass% for the synthetic fiber B, and 5 mass% for the synthetic fiber C.
In Example 1, synthetic fiber A: 45% by mass, synthetic fiber B: 50% by mass, and synthetic fiber C: 5% by mass were mixed and mixed, and a basis weight of 20.2 g / m ² and basis weight of 30 was obtained using a circular net paper machine. .4g / ^{m 2,} to produce a basis weight 40.1 g / ^{m 2} and basis weight 50.3 g / each wet nonwoven ^{m 2} (each wet way nonwoven having different basis weight).

In the net A of Example 1, a plurality of types of thermoplastic resins a and b are mixed and melted and formed into a rhomboid mesh by an extruder.
The thermoplastic resin a is a low melting point polyethylene resin (low density polyethylene resin). The thermoplastic resin b is a high melting point polyethylene resin (high density polyethylene resin).
The mass ratio of the thermoplastic resins a and b is 10 mass% for the low-melting polyethylene resin and 90 mass% for the high-melting polyethylene resin. A specific example of the thermoplastic resin a is a low melting point polyethylene resin manufactured by Sumitomo Chemical Co., Ltd., and a specific example of the thermoplastic resin b is a high melting point polyethylene resin of Prime Polymer Co., Ltd.
As shown in FIG. 1, the net A of Example 1 is formed by arranging rhombus meshes, for example, wire 2A: about 0.5 to 1.0 mm, diagonal line a of each rhombus mesh 2C: 15.0 mm and Diagonal line b: 25.0 mm.

The nonwoven fabric A and the net A of Example 1 are heat-laminated using a laminator T as shown in FIG.
The net A of Example 1 is laminated on the nonwoven fabric A, and the entire back surface of the net A and the surface of the nonwoven fabric A are brought into contact with each other.
In FIG. 3, the laminator T brings the heating roller TR into contact with the back surface of the nonwoven fabric A. The heating roller TR is in line contact with the back surface of the nonwoven fabric A across the width direction HT of the nonwoven fabric A. The pressure roller PR is in line contact with the back surface of the net A across the width direction HT of the net A, and presses the net A and the nonwoven fabric A against the heating roller TR. The nonwoven fabric A and the net A receive a linear pressure P across the width direction HT by the heating roller TR and the pressure roller PR.
The heat laminate of Example 1 has a heating temperature Tm: 160 ° C., a linear pressure P: 30 kgf / cm, and a delivery speed V: 10 m / min.
In Example 1, a nonwoven fabric with a net obtained by thermally laminating a nonwoven fabric A having a basis weight of 20.2 g / m ² and a net A (hereinafter referred to as “Example 1-1”), a nonwoven fabric having a basis weight of 30.4 g / m ² . A non-woven fabric with a net obtained by heat laminating A and net A (hereinafter referred to as “Example 1-2”), a non-woven fabric with a net obtained by heat laminating non-woven fabric A having a basis weight of 40.1 g / m ² and net A (hereinafter referred to as “ Example 1-3 ”), and a nonwoven fabric with a net (hereinafter referred to as“ Example 1-4 ”) obtained by thermally laminating a nonwoven fabric A having a basis weight of 50.3 g / m ² and a net A are manufactured.

  In the heat laminate of Example 1, the sheath portions (polyethylene resin, low-melting polyester resin) of the synthetic fibers A and B of the nonwoven fabric A, and the thermoplastic resins a and b of the net A (low-melting polyethylene resin and high-melting polyethylene) By melting under linear pressure, the nonwoven fabric A and the net A are pressure-bonded with these molten resins. Moreover, in the nonwoven fabric A of Example 1, the core part (polyester resin) of the synthetic fibers A and B and the synthetic fiber C (polyester fiber) function as the fibers of the nonwoven fabric A. On the other hand, the net A of Example 1 is flexible with the thermoplastic resin a (low melting point polyethylene).

<Example 2>
The casing with a net for food of Example 2 includes a nonwoven fabric A and a net B (or net C) (corresponding to <combination structure 45>), and heat laminates the nonwoven fabric A and the net B or the nonwoven fabric A and the net B. Become.

The nonwoven fabric A of Example 2 was blended and mixed with 45% by mass of synthetic fiber A, 50% by mass of synthetic fiber B, and 5% by mass of synthetic fiber C, as in the case of the nonwoven fabric of Example 1. A wet nonwoven fabric with an amount of 30.4 g / m ² is produced.

In the net B of Example 2, as in Example 1, the thermoplastic resins a and b are mixed and melted and formed into a rhomboid mesh by an extruder.
In the net B of Example 2, the mass ratio of the thermoplastic resins a and b is 50 mass% for the low-melting polyethylene resin and 50 mass% for the high-melting polyethylene resin.
In the net C of Example 2, the mass ratio of the thermoplastic resins a and b is 70 mass% for the low-melting polyethylene resin and 30 mass% for the high-melting polyethylene resin.
The nets B and C of Example 2 are the same as the net of Example 1; wire 2a: about 0.5 to 1.0 mm; diagonal line a: 15.0 mm and diagonal line b: 25.0 mm of each rhombus mesh ( (See FIG. 1).

The nonwoven fabric A and the net B (or net C) of Example 2 are heat-laminated using a laminating machine (see FIG. 3) as in Example 1.
As in Example 1, the heat laminate of Example 2 has a heating temperature Tm: 160 ° C., a linear pressure P: 30 kgf / cm, and a delivery speed V: 10 m / min.
In Example 2, a nonwoven fabric with a net obtained by thermally laminating nonwoven fabric A and net B (hereinafter referred to as “Example 2-1”), and a nonwoven fabric with a net obtained by thermally laminating nonwoven fabric A and net C (hereinafter referred to as “implementation”). Referred to as Example 2-2).

In the thermal laminate of Example 2, as in Example 1, the sheath portions (polyethylene resin, low-melting polyester resin) of the synthetic fibers A and B of the nonwoven fabric A, and the thermoplastic resins a and b of the nets B and C (low-melting point) Polyethylene resin and high melting point polyethylene) are melted under linear pressure, and the nonwoven fabric A and the net B or the nonwoven fabric A and the net C are pressure-bonded with the melted resin. Moreover, in Example 2-1 and Example 2-2, the thermoplastic resin a (low melting point polyethylene resin) of the net B (or net C) increases mass% compared with the net A of Example 1. So the flexibility function is improved.
Further, in the non-woven fabric A, the core portions of the synthetic fibers A and B and the synthetic fiber C function as the fibers of the non-woven fabric A as in the first embodiment. Nets B and C are thermoplastic resin b (low melting point polyethylene resin) and have flexibility.

<Example 3>
The casing with a net for food of Example 3 comprises a non-woven fabric B and a net B (or net C) (corresponding to <combination structure 55>), and heat-laminated the non-woven fabric B and the net B or the non-woven fabric B and the net C. Become.

The non-woven fabric B of Example 3 is a sheet-like wet non-woven fabric obtained by paper making a fiber raw material containing a mixture of plural types of thermoplastic synthetic fibers A and D and plant fibers A with a circular net paper machine.
Synthetic fiber A is a core-sheath structure fiber having the same configuration as in Example 1. The synthetic fiber D is a polyethylene fiber. Plant fiber A is hemp pulp fiber.
The blending ratios of the synthetic fibers A and D and the plant fiber A are 40% by weight of the synthetic fiber A, 40% by weight of the synthetic fiber D, and 20% by weight of the plant fiber A.
The nonwoven fabric B of Example 3 is a mixture of synthetic fiber A: 40% by mass, synthetic fiber B: 40% by mass and plant fiber A: 20% by mass to produce a wet nonwoven fabric having a basis weight of 30.4 g / m ^2. .

  The nets B and C of the third embodiment have the same configuration as the net of the second embodiment.

The nonwoven fabric B and net B (or net C) of Example 3 are heat-laminated using a laminating machine (see FIG. 3), as in Example 1.
As in Example 1, the heat laminate of Example 3 has a heating temperature Tm: 160 ° C., a linear pressure P: 30 kgf / cm, and a feed rate V: 10 m / min.
In Example 3, a nonwoven fabric with a net (hereinafter referred to as “Example 3-1”) obtained by thermally laminating a nonwoven fabric B having a basis weight of 30.4 g / m ² and a net B, and a nonwoven fabric B and a net C are thermally laminated. A non-woven fabric with a net (hereinafter referred to as “Example 3-2”) is manufactured.

  In the heat laminate of Example 3, the sheath portion (polyethylene resin) of the synthetic fiber A of the nonwoven fabric B and the thermoplastic resins a and b (low-melting polyethylene resin and high-melting polyethylene resin) of the net B (or net C) are drawn. By melting under pressure, the nonwoven fabric B and the net B or the nonwoven fabric B and the net C are pressure-bonded with the melted resin. Moreover, in the nonwoven fabric B, the core part (polyester) of the synthetic fiber A, the synthetic fiber D (polyester fiber), and the plant fiber A (hemp pulp fiber) function as a fiber of the nonwoven fabric B. Furthermore, the net B (or net C) is flexible with the thermoplastic resin a (low melting point polyethylene resin).

<Example 4>
The casing with a net for food of Example 4 includes a non-woven fabric C and a net B (or net C) (corresponding to <combination structure 45>), and the non-woven fabric C and the net B or the non-woven fabric C and the net C are thermally laminated. Become.

The nonwoven fabric C of Example 4 is a spunbonded nonwoven fabric made of thermoplastic synthetic fibers E (long fibers). The synthetic fiber E is a core-sheath structure fiber having polyester as a core and polyethylene as a sheath.
The specific example of the nonwoven fabric C uses "trade name Elves (registered trademark) T0203WDO" manufactured by Unitika Ltd.
Nonwoven fabric C of Example 4 produces a spunbonded nonwoven fabric having a basis weight of 20.0 g / m ^{2 by} a spunbond method.

  The nets B and C of the fourth embodiment have the same configuration as that of the second embodiment.

The nonwoven fabric B and net B (or net C) of Example 4 are heat-laminated using a laminating machine (see FIG. 3), as in Example 1.
As in Example 1, the heat laminate of Example 3 has a heating temperature Tm: 160 ° C., a linear pressure P: 30 kgf / cm, and a feed rate V: 10 m / min.
In Example 4, a non-woven fabric with a net obtained by heat laminating non-woven fabric B and net B (hereinafter referred to as “Example 4-1”), and a non-woven fabric with a net obtained by heat laminating non-woven fabric B and net C (hereinafter referred to as “implementation”). Referred to as Example 4-2).

  In the heat laminate of Example 4, the sheath portion (polyethylene resin) of the synthetic fiber E of the nonwoven fabric C and the thermoplastic resins a and b (low melting point polyethylene resin and high melting point polyethylene) of the nets B and C are melted under high linear pressure. By doing so, the nonwoven fabric C and the net B or the nonwoven fabric C and the net C are pressure-bonded with the melted polyethylene resin. Moreover, in the nonwoven fabric C, the core part (polyester resin) of the synthetic fiber E functions as a fiber of the nonwoven fabric C. Furthermore, the nets B and C are flexible with the thermoplastic resin a (low melting point polyethylene).

<Example 5>
The casing with a net for food of Example 5 includes a non-woven fabric A and a net D (corresponding to <combination structure 43>), and is formed by thermally laminating the non-woven fabric A and the net D.

The nonwoven fabric A of Example 5 has the same configuration as the nonwoven fabric of Example 1.
In Example 5, synthetic fiber A: 45% by mass, synthetic fiber B: 50% by mass, and synthetic fiber C: 5% by mass were mixed and mixed, and the basis weight was 20.2 g / m ² and basis weight was 30 with a circular net paper machine. .4g / ^{m 2,} a basis weight 40.1 g / ^{m 2,} to produce the respective wet-laid nonwoven fabric having a basis weight of 50.3 g / ^{m 2.}

The net D of Example 5 is formed by weaving thermoplastic fibers c into a mesh lattice. The thermoplastic synthetic fiber c is a polyester fiber. Moreover, the net | network D mix | blends 100 mass% of thermoplastic synthetic fibers c (polyester fiber).
A specific example of the net D of Example 5 uses “flat sheet net C” of Nippon Tape Co., Ltd.
The net D of Example 5 is the same as the net of Example 1, the wire 2a: about 0.5 to 1.0 mm, the diagonal line a: 15.0 mm and the diagonal line b: 25. mm (see FIG. 1).

The nonwoven fabric A and the net D of Example 5 are heat-laminated using a laminating machine (see FIG. 3) as in Example 1.
The heat laminate of Example 5 has a heating temperature Tm: 170 ° C., a linear pressure P: 40 kgf / cm, and a feed rate V: 10 m / min.
In Example 5, a nonwoven fabric with a net obtained by thermally laminating a nonwoven fabric A having a basis weight of 20.2 g / m ² and a net D (hereinafter referred to as “Example 5-1”), a basis weight of 30.4 g / m ² . Non-woven fabric with a net obtained by thermally laminating non-woven fabric A and net D (hereinafter referred to as “Example 5-2”), Non-woven fabric with a net obtained by thermally laminating non-woven fabric A and net D having a basis weight of 40.1 g / m ² "Example 5-3"), and a nonwoven fabric with a net (hereinafter referred to as "Example 5-4") in which a nonwoven fabric A having a basis weight of 50.3 g / m ² and a net D are thermally laminated. To do.

  In the thermal laminate of Example 5, the sheath portion (low melting point polyester resin) of the synthetic fiber B of the nonwoven fabric A and the polyester fiber of the net D are melted under high linear pressure, so that the nonwoven fabric A and Crimp net D. In the nonwoven fabric A, the core portions (polyester) and the synthetic fibers C (ultrafine polyester fibers) of the synthetic fibers A and B function as the fibers of the nonwoven fabric A. The net D is soft due to the thermoplastic synthetic fiber c (polyester fiber).

<Example 6>
The casing with a net for food of Example 6 includes a non-woven fabric B and a net D (corresponding to <combination structure 53>), and is formed by thermally laminating the non-woven fabric B and the net D.

The nonwoven fabric B of Example 6 has the same configuration as the nonwoven fabric of Example 3.
The net D of the sixth embodiment has the same configuration as the net of the fifth embodiment.

The nonwoven fabric B and the net D of Example 6 are heat-laminated using a laminating machine (see FIG. 3) as in Example 1.
The heat laminate of Example 6 has a heating temperature Tm: 170 ° C., a linear pressure P: 40 kgf / m ² , and a feed rate V: 10 m / min.
In Example 6, a nonwoven fabric with a net (hereinafter referred to as “Example 6”) in which a nonwoven fabric B having a basis weight of 30.4 g / m ² and a net D are heat-laminated is manufactured.

  In the thermal laminate of Example 6, the sheath part (low melting point polyester resin) of the synthetic fiber B of the nonwoven fabric B and the polyester fiber of the net D are melted under high linear pressure, so that the nonwoven fabric B and Crimp net D. Moreover, in the nonwoven fabric B, the core part (polyester resin) and the plant fiber (hemp pulp fiber) of the synthetic fiber A function as the fibers of the nonwoven fabric B. Further, the net D has flexibility due to the thermoplastic synthetic fiber c (polyester fiber).

<Example 7>
The casing with a net for food of Example 7 includes a non-woven fabric D and a net D (corresponding to <combination structure 53>), and is formed by thermally laminating the non-woven fabric D and the net D.

The nonwoven fabric D of Example 7 is a wet nonwoven fabric obtained by papermaking a fiber raw material, which is a mixture of a plurality of types of thermoplastic synthetic fibers A and B and plant fibers A, using a circular net paper machine.
Synthetic fibers A and B have the same configuration as the synthetic fiber of Example 1. The plant fiber A is hemp pulp fiber.
The mass ratio of the synthetic fibers A and B and the plant fiber A is 40% by mass of the synthetic fiber A, 40% by mass of the synthetic fiber B, and 20% by mass of the plant fiber A.
In Example 7, synthetic fiber A: 40% by mass, synthetic fiber B: 40% by mass and vegetable fiber: 20% by mass were mixed and mixed using a circular net paper machine with a basis weight of 30.3 g / m ² (hereinafter referred to as a wet nonwoven fabric). , Referred to as “Example 7”).

  The net D of the seventh embodiment has the same configuration as the net of the fifth embodiment.

The nonwoven fabric D and the net D of Example 7 are heat-laminated using a laminating machine (see FIG. 3) as in Example 1.
The heat laminate of Example 7 has a heating temperature Tm: 170 ° C., a linear pressure P: 40 kgf / cm, and a feed rate V: 10 m / min.
In Example 7, a nonwoven fabric with a net (hereinafter referred to as “Example 7”) in which a nonwoven fabric D having a basis weight of 30.3 g / m ² and a net D are heat-laminated is manufactured.

  In the heat laminate of Example 7, the sheath part (low-melting point polyester resin) of the synthetic fiber B of the nonwoven fabric D and the polyester fiber of the net D are melted under high linear pressure. Crimp D. In the nonwoven fabric D, the core portions (polyester resin) of the synthetic fibers A and B and the plant fiber A (hemp pulp fiber) function as the fibers of the nonwoven fabric D without being melted. Further, the net D has flexibility due to the thermoplastic synthetic fiber c (polyester fiber).

<Example 8>
The casing with a net for food of Example 8 includes a non-woven fabric B and a net E (corresponding to <combination structure 62>), and is formed by thermally laminating the non-woven fabric B and the net E.

The nonwoven fabric 8 of Example 8 has the same configuration as the nonwoven fabric of Example 3.
In Example 8, synthetic fiber A: 40% by mass, synthetic fiber D: 40% by mass, and vegetable fiber: 20% by mass were mixed and mixed, and a wet nonwoven fabric having a basis weight of 30.4 g / m ² was produced by a circular net paper machine. To do.

The net E of Example 8 is formed into a knotless network by braiding a rayon fiber wire. The net E is formed of rayon fiber: 100% by mass.
As shown in FIG. 10, the net E has a rhombus mesh arranged in a grid, and the wire 22 a is about 0.7 to 1.0 mm, the diagonal line a is 15.0 mm and the diagonal line b is 25.0 mm. .

The nonwoven fabric B and the net E of Example 8 are heat-laminated using a laminating machine (see FIG. 3) as in Example 1.
The heat laminate of Example 8 has a heating temperature Tm: 170 ° C., a linear pressure P: 40 kgf / cm, and a feed rate V: 10 m / min.
In Example 8, a nonwoven fabric with a net (hereinafter referred to as “Example 8”) in which a nonwoven fabric B having a basis weight of 30.4 g / m ² and a net E are heat-laminated is manufactured.

  In the thermal laminate of Example 8, the sheath part (polyethylene resin) and the synthetic fiber D (polyethylene resin) of the synthetic fiber A of the nonwoven fabric B are melted under high line pressure, so that the nonwoven resin B and the net E are melted with these molten resins. Crimp the. In the nonwoven fabric B, the core portion of the synthetic fiber A and the plant fiber A function as the fibers of the nonwoven fabric B without being melted. Further, the net E maintains the net shape by the rayon fiber.

<Example 9>
The casing with a net for food of Example 9 includes a non-woven fabric B and a net F (corresponding to <combination structure 61>), and is formed by thermally laminating the non-woven fabric B and the net F.

The nonwoven fabric B of Example 9 has the same configuration as the nonwoven fabric of Example 3.
In Example 9, synthetic fiber A: 40% by mass, synthetic fiber D: 40% by mass, and vegetable fiber: 20% by mass were mixed and mixed, and a wet nonwoven fabric having a basis weight of 30.4 g / m ² was produced with a circular net paper machine. To do.

The net F of Example 9 is formed into a knotless network by knitting a cotton fiber wire. The net F is formed of cotton fiber: 100% by mass.
The net F is formed in a lattice arrangement, and the wire 22a is about 0.7 to 1.0 mm, the diagonal line a is 15.0 mm, and the diagonal line b is 25.0 mm (see FIG. 11).

The nonwoven fabric B and the net F of Example 9 are heat-laminated using a laminating machine (see FIG. 3) as in Example 1.
The heat laminate of Example 9 has a heating temperature Tm: 170 ° C., a linear pressure P: 40 kgf / cm, and a feed rate V: 10 m / min.
In Example 9, a non-woven fabric B having a basis weight of 30.4 g / m ² and a net F are heat-laminated to produce a casing with a net for food (hereinafter referred to as “Example 9”).

  In the heat laminate of Example 9, the sheath portion (polyethylene resin) and the synthetic fiber D (polyethylene resin) of the synthetic fiber A of the nonwoven fabric B are melted under a high line pressure, and the nonwoven fabric B and the net F are melted with these molten resins. Crimp the. In the nonwoven fabric B, the core portion of the synthetic fiber A and the plant fiber A function as the fibers of the nonwoven fabric B. Further, the net F maintains the net shape with cotton fibers.

As shown in FIG. 7, the nonwoven fabric with a net of Examples 1 to 9 is a cylindrical bag body using a center press seal bag making machine (for example, product “HSP-250-SA” manufactured by Seibu Machinery Co., Ltd.). To form.
As shown in FIGS. 5 and 6, the center press seal bag making machine A heat-presses the overlapping region KT of the cylindrical bag body (vertical thermo-compression process), and heat-compresses one axial end of the cylindrical bag body (horizontal Thermocompression bonding step). Further, the center press-seal bag making machine A cuts with a bag length L to produce the cylindrical bag body of Example 1 to Example 9. In the vertical thermocompression bonding process and the horizontal thermocompression bonding process, the heating temperature is 200 ° C., and in the vertical thermocompression bonding process, the nonwoven fabric with nets of Examples 1 to 9 are fed to the vertical thermocompression bonding machine AH at 10 m / min. Send it in.
In Example 1 to Example 9, as shown in FIG. 6, a cylindrical bag body having a folded bag diameter H of 110 mm and a bag length L of 250 mm is manufactured. The bag folding diameter H is the width dimension H when the cylindrical bag body is flattened.
The cylindrical bags of Examples 1 to 9 were filled (filled) with, for example, raw meat (pork lump) of meat processed ham before being smoked and dried, and smoked and smoked and dried. .
Before smoked and dried, the cylindrical bag body of Examples 1 to 9 (hereinafter referred to as “Meat filling of Examples 1 to 9” packed with pork chunks at a drying temperature of 90 ° C. and a humidity of 15%) -"Cylinder bag") is dried for 90 minutes.
The smoke is smoked at a temperature of 90 ° C. and the meat-filled / cylindrical bag of Example 1 to Example 9 with smoke such as cherry blossoms for 90 minutes.
After smoked and dried, the meat-filled / cylindrical bag of Example 1 to Example 9 is dried for 10 minutes at a temperature of 90 ° C.
Subsequently, the meat-filled / cylindrical bag body of Example 1 to Example 9 is cooled and vacuum packed to obtain a ham product (processed meat product).

The items of characteristic evaluation in Examples 1 to 9 are:
1) Laminate suitability 2) Flexibility 3) Machine suitability 4) Filling strength 5) Shard suitability 6) Transparency 7) Smoke (smoke) suitability 8) Formability 9) Air permeability.
Laminate suitability is the adhesive strength (peeling strength) of nonwoven fabric and net. When a load is applied to the net of the nonwoven fabric with a net and the net does not peel from the nonwoven fabric with a load of “100 g” or more, “◎”: optimal (very To “good”) and “◯”: appropriate (good).
The flexibility is the flexibility of the nonwoven fabric with a net and the cylindrical bag.
The machine suitability is the bag-making property of the nonwoven fabric with a net (ease of forming a cylindrical bag) and the filling property of raw meat (meat lump, kneading shaft) of processed meat products.
The filling strength is the strength when filling a cylindrical bag body with raw meat (meat lump, paste) of processed meat products.
The shard suitability is flexibility and bag breaking strength when the cylindrical bag body is formed into a shard shape.
Transparency is the degree of transparency when the meat-packed / cylindrical bag is dried and smoked, smoked and smoked and dried and vacuum packed.
Formability is the state of the processed meat product (mold loss, degree of deformation) after packing the raw meat into a cylindrical bag body (filling), before smoked / dried, smoked and smoked / after smoked / dried is there.
The air permeability is a gas (air) or liquid (water, etc.) air permeability in the meat-filled / cylindrical bag.

Table 1 shows the characteristic evaluation of Examples 1 to 9.
In Table 1, “◎” means optimum (very good), “◯” means appropriate (good), “Δ” means slightly inappropriate (slightly defective), and “x” means inappropriate (bad).

In Table 1 above, Example 1-3, Example 2-1, Example 2-2, Example 3-1, Example 3-2, Example 5-3, and Example 7 are all evaluation items. “◎” “○”: Appropriate (good).
Example 1-3, Example 2-1, Example 2-2, Example 3-1, Example 3-2, Example 5-3, and Example 7 are optimal for a casing with a net for food. It can be said.

  In Table 1 above, Example 1-1, Example 1-2, Example 4-1, Example 4-2, Example 5-1 and Example 5-2 are evaluated items “shard appropriate”. △ ”: Slightly inappropriate (slightly defective), or“ × ”: Inappropriate (defective), and“ ◎ ”: optimal (very good) or“ ○ ”: appropriate (good) in other evaluation items is there.

  In Table 1 above, in Examples 1-4, the evaluation items “transparency” and “smoke proper” are “△”: slightly inappropriate (slightly poor), and other evaluation items “◎”: optimal (very (Good) or “◯”: Appropriate (good).

  In Table 1 above, in Example 5-4, the evaluation items “flexibility”, “shard suitability”, and “transparency” are “△”: slightly inappropriate (somewhat poor), and other evaluation items are “◎”. ": Optimal (very good), or" O ": Appropriate (good).

  In Table 1 above, in Example 6, the evaluation item “laminate appropriate” is “x”: inappropriate (defective).

  In Table 1 above, Example 8 is “x”: improper (bad) in the evaluation items “laminate appropriate” and “shard appropriate”. In Example 8, the sheath part (polyethylene resin) of the synthetic fiber A of the nonwoven fabric B is melted and brought into contact with the rayon fiber of the net D to bond the nonwoven fabric B and the net D. Therefore, due to insufficient adhesive strength (adhesive) between the nonwoven fabric B and the net D, the evaluation items “appropriate laminate” and “appropriate shard” were “x”: inappropriate (defective), and thermal lamination It is necessary to adjust the heating temperature Tm, the linear pressure P, the feed rate V, and the various dimensions of the nonwoven fabric B and the net D.

  In Table 1 above, in Example 9, the evaluation item “lamination appropriate” is “Δ”: slightly inappropriate (slightly defective), and the evaluation item “shard appropriate” is “×”: inappropriate (bad). In Example 9, as in Example 8, the sheath portion (polyethylene resin) of the synthetic fiber A of the nonwoven fabric B is melted and brought into contact with the cotton fibers of the net E to bond the nonwoven fabric B and the net E. For this reason, due to the insufficient adhesive strength (adhesive) between the nonwoven fabric B and the net E, the evaluation items “appropriate laminate” and “appropriate shard” are “△”: somewhat inappropriate (somewhat poor), or “×”: It becomes improper (bad), and it is necessary to adjust the heating temperature Tm, the linear pressure P and the feed speed V of the thermal laminate, and various dimensions of the nonwoven fabric B and the net D.

  INDUSTRIAL APPLICABILITY The present invention is most suitable for forming, packaging and manufacturing processed food products such as processed meat products, processed fish products and processed milk products.

X Casing with food net NF Non-woven fabric with net (non-woven fabric sheet with net)
XF Cylindrical bag 1 Non-woven fabric 2 Net

Claims (1)

A non-woven fabric comprising thermoplastic synthetic fibers;
Comprising a thermoplastic resin or thermoplastic synthetic fiber, comprising a net laminated to the nonwoven fabric and thermocompression bonded to the nonwoven fabric;
The nonwoven fabric is
A core-sheath structure fiber having polyester as a core and polyethylene as a sheath; and
A core-sheath structure fiber having polyester as a core and low-melting polyester as a sheath; and
Plant fiber,
Composed of a composite fiber containing
A casing with a net for food , wherein the non-woven fabric and the net are bonded together by a sheath in which the core-sheath structure fiber is melted and a thermoplastic resin or thermoplastic synthetic fiber in which the net is melted .

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