KR100523943B1 - Forge for Woolpack - Google Patents

Abstract

The present invention relates to a wool pack forge used as a packaging material of wool (wool).

Wool pack forge of the present invention is characterized in that the warp and weft yarns of polyamide yarn of 1,000 to 2,500 denier and cover factor (CF) is 1,100 or more.

The forge for wool pack of the present invention is excellent in density and can stably store and transport wool.

Description

Forge for wool packs.

The present invention relates to a forge for wool packs.

Wool packs must be provided with excellent tensile and tear strength to prevent bursting, since wool obtained from sheep is placed in a mold made in a predetermined form for packaging and transportation and pressed under strong pressure. Preferably the tensile strength should be at least 250kg / 5cm as measured by ASTM D 5035 method and the tear strength should be at least 45kg as measured by Australian Woolpack Standard NO.3 2.3 method. In addition, when working outdoors, ultraviolet (UV) stability is required in consideration of deterioration of physical properties due to embrittlement of wool pack forges due to ultraviolet rays. Other important properties required for wool packs are the form stability and anti-slip performance of the forge. The wool pack containing the wool goes through the transportation process. Generally, the wool pack is loaded into a vehicle or a ship container in several stages. However, if the anti-slip property is too low, the phenomenon that the loaded wool pack is collapsed during transportation due to the low friction, and if too high, there is a disadvantage that handling is not easy. Such anti-slip properties preferably have a coefficient of friction of 3.5-6.0 N as measured by the Australian Wool Pack Standard NO.3 2.5 method. As described above, a method of manufacturing a conventional wool pack fabric for satisfying various characteristics required for the wool pack fabric will be described.

Conventionally, as for wrapping paper (hereinafter referred to as "wool pack") containing wool, a lot of polypropylene or high-density polyethylene yarn woven in plain weave has been used. In order to improve the packing property of the wool pack made of such a forge has been used through the steel pipe on the side of the wool pack. As such, when the steel pipe is penetrated to the side of the wool pack, the packing property of the wool pack is improved, but the risk of tearing the forge constituting the wool pack by the steel pipe increases. If the fork for wool pack is torn, polypropylene or high-density polyethylene fibers constituting the wool pack fork are mixed with the wool stored in the wool pack, resulting in a non-uniform dyeing of wool. Such non-uniformity is due to the different dyeability between wool and polypropylene or high density polyethylene fibers.

Recently, wool pack materials similar to wool are dyed. The dyes used for dyeing wool are generally the most widely used dyes, acid dyes, metal complex dyes, and some bat dyes and reactive dyes can be used. Fibers similar in color to wool can be dyed with the dyes mentioned above as silk and nylon. However, for dogs, the price is high and their physical properties do not meet the performance requirements of the wool pack. In general, polyester has high physical properties, but when dyed with a dye used for wool, the wool is dyed, but polyester is not dyed at all, so it cannot be used as a wool pack.

In order to solve the dyeing non-uniformity and low durability problems, a method for producing wool packs is proposed by padding a cloth woven with polyamide-based synthetic fibers in a binder and pressing it with a mangle. Such a method can solve the problem of conventional dyeing unevenness because it uses a polyamide-based synthetic fiber having the same dyeability as wool, and can also impart durability to various frictions by dipping with a binder. However, since the binder is given to the paper in a padding manner to increase durability, the consumption of energy and drugs is large, and the drying time is long, resulting in a decrease in production speed. There are a number of problems such as stains that adhere to the fabric and cause stains.

The present invention is to provide a wool pack forge that can be stably stored and transported wool without falling out of the wool is excellent in the durability and at the same time excellent in the compactness without dying non-uniformity problem.

The present invention relates to a forge for wool packs. Specifically, the present invention relates to wool pack forge, characterized in that the warp and weft yarn of polyamide yarn of 1,000 to 2,500 denier and the cover factor (CF) is 1,100 or more.

Hereinafter, the present invention will be described in detail.

First, the present invention uses polyamide-based yarns as warp and weft yarns to weave them into plain weave, ribstop or rib tissue. In this case, polyamide 6 or polyamide 66 may be used as the polyamide yarn. Polyamide-based yarns have a -CONH, -NH ₂ or -COOH group in the molecular formula, so the dyeing property is similar to wool. When the polyamide 6 and polyamide 66 are compared, the dyeing pipe excitation is the same, but the polyamide 6 has the same bonding direction as the molecular chain, but the polyamide 66 is the reverse, so there is a difference in hydrogen bonding. Therefore, polyamide 6, which has a small amount of hydrogen bonds, has a relatively large amount of amorphous regions which become salt seats, so that dyeing is relatively easy and saturation dyes are also large. Therefore, it is more preferable to use polyamide 6 yarn as theodolite.

The total fineness of the polyamide yarn used as the warp yarn is 1,000 to 2,500 denier in consideration of the denseness, tensile strength, tear strength and flexibility required for wool packs. When the total fineness of the weft yarn is less than 1,000 denier, the tensile strength and tear strength are less than the required level of the wool pack, and when the total fineness is more than 2,500 denier, there is a problem that the flexibility is reduced. More preferably, the total fineness of the warp yarn is 1,200 to 2,000 denier.

The density of the weft warp yarns during weaving should be set so that the function CF calculated by the following equation (I) is 1,100 or more.

Cover factor (CF) = warp density × + weft density × (I)

At this time, the warp density and the weft density are expressed as the number of the weft yarn per inch. If the cover factor (CF) is less than 1,100, the denseness of the fabric may be deteriorated, which may cause a problem that the wool comes out of the wool pack forge during storage and transportation of the wool, and tensile strength and tear strength are also reduced.

The wool pack forge of the present invention manufactured by the above-described method may be used as it is without the binder treatment, or may be used after dipping, printing or spraying with a binder for reinforcing durability and anti-slipness.

The wool pack forge of the present invention is excellent in density and can prevent the fall of the wool during transport and storage of the wool, and has physical properties such as tensile strength required for the wool pack forge. In addition, the binder process may be omitted, thereby reducing manufacturing costs and improving flexibility.

The present invention evaluates the various main properties of the forge for wool pack in the following manner.

Cover Factor (CF)

CF = [Inclined Density (Bone / Inch)] × + [Weft Density (Bone / Inch)] ×

·The tensile strength

It is measured by Australian Wool Pack Standard NO.3 2.1 method under standard conditions.

Tear strength

It is measured by Australian Wool Pack Standard NO.3 2.3 method under standard conditions.

Surface friction

It is measured by Australian Wool Pack Standard NO.3 2.5 method in the standard condition.

Elongation at load

It is measured by Australian Wool Pack Standard NO.3 2.7 method under standard conditions.

Hereinafter, the present invention will be described in detail through Examples and Comparative Examples. However, the present invention is not limited only to the following examples.

Example 1

Using 1,260 denier polyamide 6 yarn as warp and weft yarns, they are subjected to a normal weaving preparation process, and then fabrics are fabricated by weaving into rib structures so that the warp density is 21 bones / inch and the weft density is 22 bones / inch. . After preparing the wool pack forge with the forge, the results of evaluating various properties of the wool pack forge are shown in Table 2.

Example 2

Using 1,890 denier polyamide 6 yarn as warp and weft yarns, they are subjected to a normal weaving preparation process, and then fabrics are fabricated by ripstop tissue so as to have a warp density of 14.5 bone / inch and a weft density of 14.5 bone / inch. Both sides of the forge were spray-sprayed with a solution composed of 100 parts by weight of water, 90 parts by weight of melamine-based binder, 90 parts by weight of acrylic binder, 9 parts by weight of catalyst, and 50 parts by weight of antislip agent, and then heat-set at 150 ° C. for 30 seconds. Forge for wool packs are prepared. The results of evaluating various physical properties of the manufactured wool pack forge are shown in Table 2.

Comparative Example 1 to Comparative Example 2

A wool pack forge and a wool pack are manufactured in the same process and conditions as in Example 2, except that the denier and density of the warp yarn are changed as shown in Table 1. The results of evaluating various physical properties of the wool pack forge are shown in Table 2.

<Table 1> Manufacturing Conditions

division Warp and weft denier Weaving Density (Bon / Inch) Cover Factor (CF) Slope density Weft density Example 1 1,250 21 22 1,520 Example 2 1,890 14.5 14.5 1,260 Comparative Example 1 2,600 10 10 1,019 Comparative Example 2 840 18 18 1,043

<Table 2> Measurement results of the properties of wool forge

division Standard value Example 1 Example 2 Comparative Example 1 Comparative Example 2 slope Weft slope Weft slope Weft slope Weft Tensile strength (kg) 250 or more 458 442 471 469 470 470 325 308 Tear strength (kg) 45 or more 68 71 51 51 78 81 40 39 Surface friction (N) 3.5 to 6.0 5.3 4.3 5.8 5.0 5.5 4.8 5.4 5.0 50kg Load Elongation (%) 12 or less 4.0 5.0 4.8 5.7 2.3 3.0 2.5 3.0 Form stability - Great Great Great Bad Wool fallout - No dropout No dropout leaving out leaving out

The forge for wool pack of the present invention has no problem of non-uniformity in dyeing, and has excellent durability against friction and excellent compactness, so that the wool can be stored and transported without falling off.

Claims (3)

Wool pack forge, characterized in that the warp and weft yarn is a polyamide yarn of 1,000 to 2,500 denier, the cover factor (CF) is 1,100 or more. The forge for wool pack according to claim 1, wherein the polyamide yarn is polyamide 6 or polyamide 66. The wool pack forge according to claim 1, wherein the warp yarn and the fineness of the weft yarn are 1,200 to 2,000 denier polyamide yarns.