JP2009234652A - Metallic soap packed article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a metallic soap packed article for preventing a metallic soap from flowing out caused by breaking of a metallic soap packaging bag using a bag consisting of a polyethylene film even under a high temperature environment. <P>SOLUTION: In the metallic soap packed article, the metallic soap packaging bag made by filling the metallic soap from the opening part of the bag consisting of the polyethylene film and heat-sealing the opening part, is packed in a box-like article for packing under a condition that the heat-sealed part is made to be the upper part with the bag erected. Preferably, in the metallic soap packed article, the metallic soap packaging bags are packed under the condition that the heat-sealed parts are made to be upper parts and the bags are stood respectively in two or more spaces partitioned by partitions arranged in the box-like article for packing. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a metal soap package that prevents a bag from being broken during long-term storage of a metal soap packaging bag in which a bag made of a polyethylene film is filled with metal soap and an opening is heat-sealed.

  Metal soaps are widely used as paint and printing ink dryers, rubber and steel adhesion promoters, and unsaturated polyester cure accelerators. Since the quality of metal soap may change due to external environmental factors, it is usually used as a heat-seal-wrapped bag made of polyethylene film that is inert to metal soap. Has been.

  However, it is filled with metal soap in a bag made of a general polyethylene film, filled with a packaging bag formed by heat-sealing the opening, especially paste metal soap having fluidity such as cobalt neodecanoate, In a packaging bag that is heat-sealed at the opening, if it is stored for a long period of two months or more, it will be filled with a bag that is broken by pinholes, tears, tears, etc. at the direct contact between the heat-sealed part and the metal soap. There was a case where the metal soap that had flowed out caused a loss of commercial value. In addition, the occurrence of bag breakage due to pinholes, breaks, tears, etc. at the direct contact portion between the heat seal portion and the metal soap is not so much at the bottom heat seal portion heat-sealed before filling with the metal soap. Since there is much more occurrence in the upper heat seal part that is heat-sealed after filling the metal soap, a small amount of metal soap vapor or splashes adhere to the inside of the upper heat seal part of the bag when filling with metal soap, This is probably due to heat sealing.

As such a metal soap packaging bag with fewer broken bags, polyethylene having a melt flow rate (JIS K6922-2) of 15 g / 10 min or less, a softening point (ASTM D1525) of 80 ° C. or higher, and a melting point (DSC method) of 90 ° C. or higher. Metal soap package (for example, refer to Patent Document 1) in which a metal film bag is filled with metal soap and the opening is heat-sealed, and a density of 0.922 to 0.944 g / cm ² (JIS K6760-1981). In addition, a metal soap package (for example, see Patent Document 2) in which a bag made of polyethylene having a melting point (DSC method) of 110 to 130 ° C. is filled with metal soap and the opening is heat sealed is known.

  However, the metal soap packages described in Patent Document 1 and Patent Document 2 are relatively difficult to break, but it is difficult to completely prevent breakage in a high-temperature environment. In a high temperature environment, when the package is stacked and stored side by side, bag breakage from the heat seal portion is likely to occur, and bag breakage cannot be completely prevented.

Japanese Patent Laid-Open No. 11-349058 JP 2003-335373 A

  The problem to be solved by the present invention is to provide a metal soap package that prevents metal soap from flowing out due to breaking of a metal soap packaging bag using a bag made of polyethylene film even in a high temperature environment. .

  As a result of intensive studies by the present inventors, a metal soap packaging bag in which metal soap is filled from an opening portion of a bag made of a polyethylene film and the opening portion is heat-sealed stands up with the heat seal portion as an upper portion. It has been found that when the product is packed in a packing box-like product in such a state, it is possible to effectively prevent the metal soap from flowing out due to the broken bag of the metal soap packaging bag even in a high temperature environment, and the present invention has been completed.

  That is, the present invention provides a metal soap packaging bag in which metal soap is filled from an opening portion of a bag made of a polyethylene film and the opening portion is heat-sealed, and the packaging box is in a state where the heat-sealing portion is standing up. The present invention provides a metal soap package that is packaged in a package.

  The metal soap package of the present invention can effectively prevent the metal soap from flowing out due to the breakage of the metal soap packaging bag using the bag made of polyethylene film even in a high temperature environment.

  The bag used for filling the metal soap in the present invention is not particularly limited as long as it is a bag made of a polyethylene film. As a polyethylene film used for this bag, the film which consists of polyethylene resins, such as an ethylene homopolymer, an ethylene-propylene copolymer, an ethylene-vinyl acetate copolymer, is mentioned, for example. Examples of the polyethylene resin used as the raw material include low density polyethylene, medium density polyethylene, high density polyethylene, and linear low density polyethylene. Vinyl acetate may be saponified. Further, the polyethylene film may be a multilayer film made of two or more different types of resins.

As the bag made of the polyethylene film, the melt flow rate (JIS K6922-2) is 15 g / 10 min or less, the softening point because it is effective in preventing deterioration and breakage of the metal soap during long-term storage. A roller made of a film made of a polyethylene resin having (ASTM D1525) of 80 ° C. or higher and a melting point (DSC method) of 90 ° C. or higher is preferable, and the melt flow rate, softening point and melting point are within the above ranges. And a bag made of a film using a polyethylene resin having a density (JIS K6760-1981) of 0.922 to 0.944 g / cm ² and a melting point (DSC method) of 110 to 130 ° C. preferable.

Furthermore, the bag made of the polyethylene film has a density of 0.922 to 0.944 g / cm ² , a melt flow rate of 0.3 to 5 g / 10 minutes, a melting point of 110 to 130 ° C., and a softening point. Most preferably, it is a bag made of a film using a polyethylene resin at 90 to 110 ° C.

  Although it does not restrict | limit especially as thickness of the said polyethylene-type film, It is preferable that it is 30-200 micrometers, and it is more preferable that it is 40-150 micrometers.

  Examples of the metal soap used in the present invention include various metal soaps such as cobalt naphthenate and cobalt neodecanoate. The effect of the present invention is remarkable in the case of a paste-like metal soap having fluidity in a temperature range of 15 to 60 ° C. like cobalt neodecanoate.

  The metal soap packaging bag used in the present invention can be obtained by filling metal soap from an opening of a bag made of the polyethylene film and sealing the opening by heat sealing. As a more specific method for producing the metal soap packaging bag, for example, the polyethylene resin is formed into a cylindrical film, one of the openings is heat-sealed as a bottom, and the other upper opening is metal soap. And after deaeration of the bag upper space not filled with metal soap as necessary, the opening is sealed by heat sealing. The deaeration of the bag upper space does not have to be complete deaeration.

  The filling of the metal soap improves the fluidity of the metal soap and facilitates the filling. Therefore, the filling is preferably performed after the metal soap is heated to 50 to 90 ° C, and heated to 65 to 85 ° C. It is more preferable to perform filling after that. In addition, as a degassing method of the bag upper space not filled with the metal soap, for example, a method of degassing by sandwiching both outer sides of the bag filled with the metal soap with a flexible material such as a sponge And a method of deaeration by sandwiching both outer sides of the bag upper space not filled with metal soap with a plate-like object, a rod-like object, or the like.

  Moreover, as a metal soap packaging bag used by this invention, the upper heat seal part of the metal soap packaging bag packed in the state which stood the heat seal part (upper heat seal part) of the opening part filled with metal soap as the upper part The metal heat filled in the metal soap packaging bag packed in an upright state, and the upper heat seal part. It is preferable that the metal soap packaging bag is filled with metal soap in a state where the metal soap is not directly in contact with the upper heat seal portion. The filling amount of the metal soap for making such a preferable metal soap packaging bag is such that the capacity of the metal soap after filling is 35 to 95% by volume with respect to the total capacity of the metal soap packaging bag after the upper heat seal. The filling amount is more preferably 50 to 85% by volume.

Further, the metal soap packaging bag used in the present invention is preferably a packaging bag filled with 0.1 to 5.0 kg of metal soap because it can effectively prevent the upper heat seal portion from being broken. More preferably, the packaging bag is filled with 0.2 to 4.0 kg of metal soap, and most preferably the packaging bag is filled with 0.2 to 3.0 kg of metal soap. The capacity of the bag made of a polyethylene film used for such a metal soap packaging bag (total capacity after the upper heat seal) can effectively prevent the upper heat seal portion from being broken, so that it is 6.0 liters or less. Preferably, it is 0.3 to 6.0 liters, more preferably 0.3 to 4.0 liters.

  Considering the distribution environment and storage environment of metal soap, if necessary, wrap the metal soap in multiple layers by packaging the outside of the metal soap packaging bag with a bag made of the same polyethylene film. You can also. By this multiple wrapping, even if the first film in contact with the metal soap breaks, the second film that hits the outside does not break, so a more excellent effect can be expected.

  The metal soap package of the present invention can be obtained by packing in a packing box-like product with the heat seal portion of the opening filled with metal soap standing up. As a preferred metal soap package, a metal soap packaging bag is packed in each of two or more spaces partitioned by a partition arranged in a packing box-like product, with the heat seal portion standing up. In particular, the metal soap package is made of the heat-sealable metal soap packaging bag, even after one or more metal soap packaging bags are taken out of the metal soap package. Can be held in the packing box-like object in a state where the part stands as an upper part, so that each of the four to sixteen spaces partitioned by the intersecting partitions arranged in the packing box-like object has the heat seal It is more preferable that the package is a metal soap package packed with the part standing up.

  The packaging box used in the present invention is not particularly limited as long as it can pack one or more metal soap packages in a state where the upper heat seal portion is the upper part. For example, a cardboard box, wood A box, a metal box, a plastic box, etc. are mentioned, and a cardboard box is particularly preferable.

  The metal soap packaging bag used in the present invention is a method of taking out only the metal soap as the contents from the metal soap packaging bag and using the metal soap consisting of a polyethylene film bag and a metal soap according to the intended use. There is a method of using the packaging bag as it is. The former is used as a curing accelerator for paints, inks or unsaturated polyester resins, and the latter is used as an adhesion promoter between rubber and steel.

  In the case where a metal soap packaging bag is used as it is as an adhesion promoter between rubber and steel, the polyethylene film itself does not have an adhesion promoting effect, so the amount used is preferably kept to the minimum necessary. When performing multiple packaging as described above, it is preferable to adjust the thickness of two or more films to be used so that the total volume of the polyethylene film used does not change so much that it is not necessary.

  The metal soap packaging bag used in the present invention can be kneaded together with necessary additives to form a rubber compound. More specifically, each raw material of the rubber compound may be put into a rubber kneading Banbury mixer or the like and kneaded until uniform. The rubber compound thus obtained can be molded or cut as necessary, processed and molded, and then vulcanized to obtain a rubber processed product.

  EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples and comparative examples. However, the present invention is not limited only to the following examples. The following “parts” and “%” are based on weight.

Example 1
Density (JIS K6760) 0.923 g / cm ³ , melting point (DSC method) 112 ° C., melt flow rate (JIS K6760) 1.5 g / 10 minutes, softening point (ASTM D1525) 96 ° C., thickness 80 μm, width 200 mm, One opening of a cylindrical polyethylene film having a length of 350 mm was heat sealed under a temperature condition of 130 ° C. to obtain a bag (1) having a total capacity of 2.8 liters after the upper heat sealing.

  After filling the obtained bag (1) with 2 kg of cobalt neodecanoate heated to 70 ° C., degassing by sandwiching both outer sides of the bag upper space not filled with metal soap with metal plate-like materials, The opening was heat sealed at a temperature of 120 ° C. to obtain a metal soap packaging bag (1) filled with metal soap.

  Next, the inside of the box is divided into eight parts by one vertical partition made of corrugated cardboard and three horizontal partitions made of corrugated cardboard arranged in parallel at equal intervals so as to intersect at right angles to this. Pack one metal soap packaging bag (1) with the upper heat seal part up, one for each of the eight spaces partitioned between the cardboard boxes (34 cm long, 36 cm wide, 27 cm high) And the metal soap package (1) of this invention was produced. The metal soap packaging bag (1) packed in this metal soap package (1) When the packaging state of the eight bags is visually observed, the metal soap is filled between the filled metal soap and the upper heat seal part. There was an unfinished part, and the metal soap was filled without contacting the upper heat seal part.

  The obtained metal soap package (1) is stored in a constant temperature bath at a temperature of 50 ° C. and a humidity of 38% RH, and the film state of the metal soap packaging bag is visually observed once a day in detail and pinned to the bag. The number of days until bag breakage due to holes, cuts, tears, etc. was obtained. When a bag breakage such as a pinhole occurs in the film, cobalt neodecanoate filled from the bag flows out or emits a peculiar odor so that the bag breakage can be easily confirmed. The results are shown in Table 1.

Example 2
Instead of cylindrical polyethylene film (1), density (JIS K6760) 0.923 g / cm ³ , melting point (DSC method) 123 ° C., melt flow rate (JIS K6760) 0.7 g / 10 min, softening point (ASTM D1525) A metal soap packaging bag having a total capacity of 2.8 liters in the same manner as in Example 1 except that a cylindrical polyethylene film (2) having a temperature of 104 ° C., a thickness of 80 μm, a width of 200 mm, and a length of 350 mm was used ( 2) was obtained.

  Next, the metal soap package (2) of the present invention was prepared in the same manner as in Example 1 except that the metal soap package bag (2) was used instead of the metal soap package bag (1), and then further implemented. In the same manner as in Example 1, the number of days until a bag breakage due to pinholes, cuts, tears or the like occurred in the metal soap packaging bag (2) was obtained. The results are shown in Table 1.

  In addition, when the packing state of the metal soap packaging bag (2) 8 bags packed in the metal soap package (2) was visually observed, the metal soap was placed between the filled metal soap and the upper heat seal portion. Was filled with metal soap without contacting the upper heat seal part.

Example 3
Instead of cylindrical polyethylene film (1), density (JIS K6760) 0.940 g / cm ³ , melting point (DSC method) 127 ° C., melt flow rate (JIS K6760) 2.0 g / 10 minutes, softening point (ASTM D1525) Metal soap packaging bag having a total capacity of 2.8 liters in the same manner as in Example 1 except that a cylindrical polyethylene film (3) having a temperature of 110 ° C., a thickness of 80 μm, a width of 200 mm, and a length of 350 mm was used ( 3) was obtained.

  Next, the metal soap package (3) of the present invention was prepared in the same manner as in Example 1 except that the metal soap package bag (3) was used instead of the metal soap package bag (1), and then further implemented. In the same manner as in Example 1, the number of days until bag breakage due to pinholes, cuts, tears, etc. occurred in the metal soap packaging bag (3) was obtained. The results are shown in Table 1.

  In addition, when the packing state of the metal soap packaging bag (4) 8 bags packed in the metal soap package (3) was visually observed, the metal soap was between the filled metal soap and the upper heat seal portion. Was filled with metal soap without contacting the upper heat seal part.

Example 4
Instead of cylindrical polyethylene film (1), density (JIS K6760) 0.923 g / cm ³ , melting point (DSC method) 112 ° C., melt flow rate (JIS K6760) 1.5 g / 10 minutes, softening point (ASTM D1525) Metal soap packaging bag having a total capacity of 1.6 liters in the same manner as in Example 1 except that a cylindrical polyethylene film (4) having a temperature of 96 ° C., a thickness of 80 μm, a width of 200 mm, and a length of 250 mm was used. 4) was obtained.

  Next, the inside of the box is divided into eight parts by one vertical partition made of corrugated cardboard and three horizontal partitions made of corrugated cardboard arranged in parallel at equal intervals so as to intersect at right angles to this. Pack one metal soap packaging bag (4) with the upper heat seal part up, one for each of the eight spaces partitioned between the cardboard boxes (24 cm long, 38 cm wide, 30 cm high) And the metal soap package (4) of this invention was produced. The metal soap packaging bag (4) packed in this metal soap package (4) When the packing state of 8 bags was visually observed, the metal soap was filled between the filled metal soap and the upper heat seal part. There was an unfinished part, and the metal soap was filled without contacting the upper heat seal part.

  The obtained metal soap package (4) is stored in a thermostatic bath at a temperature of 50 ° C. and a humidity of 38% RH, and the film state of the metal soap packaging bag is visually observed once a day in detail and pinned to the bag. The number of days until bag breakage due to holes, cuts, tears, etc. was obtained. The results are shown in Table 1.

Example 5
Instead of cylindrical polyethylene film (1), density (JIS K6760) 0.923 g / cm ³ , melting point (DSC method) 123 ° C., melt flow rate (JIS K6760) 0.7 g / 10 min, softening point (ASTM D1525) A metal soap packaging bag having a total capacity of 1.6 liters in the same manner as in Example 1 except that a cylindrical polyethylene film (5) having a temperature of 104 ° C., a thickness of 80 μm, a width of 200 mm, and a length of 250 mm was used. 5) was obtained.

  Next, the metal soap package (5) of the present invention was produced in the same manner as in Example 4 except that the metal soap package bag (5) was used instead of the metal soap package bag (4), and then further implemented. In the same manner as in Example 4, the number of days until a bag breakage due to pinholes, cuts, tears or the like occurred in the metal soap packaging bag (5) was obtained. The results are shown in Table 1.

  In addition, when the packing state of the metal soap packaging bag (5) 8 bags packed in the metal soap package (5) was visually observed, the metal soap was between the filled metal soap and the upper heat seal portion. Was filled with metal soap without contacting the upper heat seal part.

Example 6
Instead of cylindrical polyethylene film (1), density (JIS K6760) 0.940 g / cm ³ , melting point (DSC method) 127 ° C., melt flow rate (JIS K6760) 2.0 g / 10 minutes, softening point (ASTM D1525) A metal soap packaging bag having a total capacity of 1.6 liters in the same manner as in Example 1 except that a cylindrical polyethylene film (6) having a temperature of 110 ° C., a thickness of 80 μm, a width of 200 mm, and a length of 250 mm was used. 6) was obtained.

  Subsequently, the metal soap package (6) of the present invention was produced in the same manner as in Example 4 except that the metal soap package bag (6) was used instead of the metal soap package bag (4), and then further implemented. In the same manner as in Example 4, the number of days until bag breakage due to pinholes, cuts, tears, etc. occurred in the metal soap packaging bag (6) was obtained. The results are shown in Table 1.

  In addition, when the packing state of the metal soap packaging bag (6) 8 bags packed in the metal soap package (6) was visually observed, the metal soap was between the filled metal soap and the upper heat seal portion. Was filled with metal soap without contacting the upper heat seal part.

Comparative Examples 1-3
Metal soap packaging bags (1) to (3) were produced in the same manner as in Examples 1 to 3, respectively. Next, the cardboard box identical to the cardboard box used in Example 1 except that the partition was removed was folded down so that the upper opening was a side surface, and the metal soap packaging bags (1) to (3) were placed therein. Eight bags each were packed in a state of being stacked in two rows and four tiers to produce comparative metal soap packages (1 ′) to (3 ′).

  Each of the obtained metal soap packages (1 ′) to (3 ′) is stored in a thermostatic bath at a temperature of 50 ° C. and a humidity of 38% RH, and the film state of the metal soap packaging bag is once a day in detail. The number of days until bag breakage due to pinholes, cuts, tears, etc. occurred was determined. The results are shown in Table 1.

  In addition, when the packing state of the metal soap packaging bags (1 ') to (3') 8 bags packed in the metal soap packages (1 ') to (3') was visually observed, all of them were packed with metal soap. Since the objects (1 ′) to (3 ′) are packed in a state of being stacked horizontally, the metal soap filled is filled with the metal soap in a state of being in direct contact with the upper heat seal portion.

Comparative Examples 4-6
Metal soap packaging bags (4) to (6) were produced in the same manner as in Examples 4 to 6, respectively. Then, the cardboard box identical to the cardboard box used in Example 4 except that the partition was removed was tilted so that the upper opening was a side surface, and the metal soap packaging bags (4) to (6) were placed therein. Each of the eight bags was packed in a state of being stacked in two rows and four stages to prepare comparative metal soap packages (4 ′) to (6 ′).

  Each of the obtained metal soap packages (4 ′) to (6 ′) is stored in a thermostatic bath at a temperature of 50 ° C. and a humidity of 38% RH, and the film state of the metal soap packaging bag is detailed once a day. The number of days until bag breakage due to pinholes, cuts, tears, etc. occurred was determined. The results are shown in Table 1.

  In addition, when the packing state of the metal soap packing bags (4 ') to (6') 8 bags packed in the metal soap packing items (4 ') to (6') was visually observed, all of them were packed with metal soap. Since the objects (4 ′) to (6 ′) are packed in a state of being stacked horizontally, the metal soap is filled in a state where the filled metal soap is in direct contact with the upper heat seal portion.

Claims (10)

A metal soap packaging bag filled with metal soap from the opening of a bag made of polyethylene film and heat-sealed in the opening is packed in a packaging box with the heat-sealed portion standing up. Metal soap package, characterized by The said metal soap packaging bag is packed in the state which stood the said heat seal part as the upper part in each of two or more spaces partitioned by the partition arrange | positioned in the box for packing. Metal soap package as described in The metal soap packaging bag is packed in a state where the heat seal portion is set up in each of 4 to 16 spaces partitioned by intersecting partitions arranged in a box for packing. The metal soap package according to claim 1. The metal soap packaging bag that is packed with the heat seal portion upright has a portion that is not filled with metal soap between the filled metal soap and the heat seal portion, and the heat seal The metal soap package according to claim 1, 2, or 3, which is a packaging bag filled with metal soap in a state where it does not contact the portion. The range in which the capacity of the metal soap after filling is 50 to 80% by volume with respect to the total capacity of the metal soap packaging bag after the heat sealing in the metal soap packaging bag that is packed with the heat seal portion as an upper part. The metal soap package according to claim 1, 2, or 3, wherein the metal bag is filled with metal soap. The metal soap package according to claim 4 or 5, wherein the metal soap packaging bag is a packaging bag filled with 0.2 to 4.0 kg of metal soap. The metal soap package according to claim 6, wherein the packing box is a cardboard box. The metal soap package according to any one of claims 1 to 7, wherein the metal soap is cobalt neodecanoate. A bag made of the polyethylene film has a melt flow rate (JIS K6922-2) of 15 g / 10 min or less, a softening point (ASTM D1525) of 80 ° C. or more, and a melting point (DSC method) of 90 ° C. or more. It is a bag which consists of a film using resin, The metal soap package of any one of Claims 1-8. The polyethylene film bag has a density (JIS K6760-1981) of 0.922 to 0.944 g / cm ² , a melt flow rate (JIS K6922-2) of 0.3 to 5 g / 10 minutes, and a melting point (DSC). The metal soap package according to claim 9, which is a bag having a thickness of 50 to 150 μm made of a film using a polyethylene resin having a method of 110 to 130 ° C. and a softening point (ASTM D1525) of 90 to 110 ° C.