JP2000272837A - Paper tube for winding thread - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the windability and the unwindability by forming an oil-proof layer on an outer periphery of a paper tube body, and sticking the parchment paper on an outer periphery of the oil-proof layer for properly controlling the absorption of an oil agent. SOLUTION: A paper tube 1 is formed by coating an outer peripheral surface of a thick and hard paper tube body 2 with an oil-proof layer 3, and sticking the parchment paper 4 on a surface of the oil-proof layer 3, the parchment paper 4 is formed by the strip paper of a constant width, and this strip parchment paper 4 is spirally wound on the outer periphery of the oil-proof layer 3 obliquely with respect to the axial direction. As a material used for the oil- proof layer, a resin or an oil-proof paper material can be preferably used. As the resin, in particular, a fluororesin, a silicone resin and an acryl resin can be preferably used. As the oil-proof paper material, in particular, the art paper, the coat paper, the machine glazed paper can be preferably used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn winding paper tube, and more particularly to a yarn winding paper for ensuring good winding property, unwinding property and quality stability of a synthetic fiber yarn. About pipes.

[0002]

2. Description of the Related Art In the winding process of a synthetic fiber yarn such as polyester or nylon, the winding property of the spun yarn is improved, and the unwinding property when unwinding in a high-order process and the process pass. In order to improve the properties, the yarn is wound on a drum or bobbin after an oil agent is applied to the surface of the yarn. The type of the oil agent varies depending on the type and application of the yarn, but if the amount of adhesion is less than the appropriate value, but at most it will cause problems in the above winding properties and unwinding properties, so the appropriate value is always maintained Is being asked to be.

On the other hand, a yarn winding drum or bobbin has
In order to increase the efficiency of distribution between a manufacturer of yarn and a high-level processor that processes the yarn, a light and easy-to-handle paper tube is often used. However, the paper tube absorbs water,
Due to the oil absorbing property, the oil agent on the surface of the yarn is easily absorbed into the paper tube side, so that the amount of the oil agent attached to the yarn is reduced below an appropriate value.

[0004] If the amount of the oil agent adhering to the yarn is smaller than an appropriate value, an electrostatic trouble occurs, and the convergence of the yarn is reduced. The unwinding property is reduced, and the yarn breaks. In addition, due to the change in the amount of oil agent attached, twisting occurs when twisting the yarn in the twisting process, and spotting occurs when dyeing into woven or knitted fabric, resulting in abnormal product quality. .

Conventionally, as a measure against the above-mentioned problem, a paper tube in which a PVC film is wound around the outermost surface or a fluorine resin is coated (see Japanese Utility Model Publication No. 7-48623). However, although the paper tube provided with these measures is provided with oil resistance, it has a smooth surface, which makes it difficult to wind the yarn, and the winding property is reduced. There has been a problem in that the yarn stays in the innermost layer and it becomes difficult to unwind the innermost yarn in a high-order process.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems and to appropriately control the absorption of an oil agent so that the winding property, unwinding property and quality stability can be maintained well. To provide a yarn winding paper tube.

[0007]

The yarn winding paper tube according to the present invention is characterized in that an oil-proof layer is provided on the outer periphery of a paper cylinder main body, and parchment paper is adhered to the outer periphery of the oil-proof layer. is there.

By arranging the oil-proof layer inside the parchment paper as described above, it becomes possible to appropriately control the amount of oil agent absorbed, so that the winding property is improved, and moreover, the innermost layer from the innermost layer of the winding package is improved. Since the distribution of the amount of the oil agent up to the outer layer is made substantially uniform, the unwinding property of the yarn in the higher-order process is improved, and the quality stability of the product can be maintained.

[0009]

1 and 2 show a yarn winding paper tube according to an embodiment of the present invention. As shown in FIGS. 1 and 2, the paper tube 1 is configured such that the outer peripheral surface of a thick and rigid paper cylinder main body 2 is covered with an oil-proof layer 3, and a parchment paper 4 is attached to the surface of the oil-proof layer 3. It is configured. The parchment paper 4 is formed of a band-shaped paper having a constant width. The band-shaped parchment paper 4 is spirally wound around the outer periphery of the oil-proof layer 3 obliquely to the axial direction.

[0010] A filament yarn to which an oil agent has been applied after the melt spinning is wound around the paper tube 1 having such a configuration, and the wound yarn layer 5 is formed as indicated by a chain line to form a wound package.

In the construction of the paper tube, the material used for the oil-proof layer is not particularly limited as long as it has an oil-proof function. Preferably, a resin or an oil-proof paper material can be used. The resin is particularly preferably a fluororesin, a silicone resin, or an allyl resin, and one of these resins may be selected, or two or more of them may be used in combination. In addition, as the oil-proof paper material, art paper, coated paper, and roll paper are particularly preferable, and one kind may be selected from a group of these paper materials, or two or more kinds may be used in combination.

By interposing the oil-proof layer 3 between the main body 2 of the paper cylinder and the parchment paper 4, the amount of oil adhering to the yarn to the paper tube side is appropriately controlled, and The amount of oil applied is almost uniformly distributed from the innermost layer to the outermost layer of the package, and the phenomenon that the oil stays excessively in the innermost layer of the package does not occur, and the oil applied to the entire length of the yarn is maintained at an approximately appropriate value. To do.

Accordingly, in the melt-spinning winding process of nylon, polyester or the like, it is possible to maintain good winding property and achieve a high initial winding success rate.
Further, when the yarn is unwound from the paper tube in the higher-order process, the unwound property of the yarn can be improved, and the process passability can be improved. In addition, since the amount of oil applied from the innermost layer to the outermost layer of the wound package is kept almost uniform,
When dyeing a woven or knitted fabric, spots are not generated, and good product quality can be maintained.

As described above, the oil resistance provided by the combination of the parchment paper 4 on the outside and the oil-proof layer 3 on the inside is JI on the parchment paper-side surface.
Oil absorption degree measured based on SP-8140 is 0.5 to
It is preferably 2.4 g / m ² · 30 sec, more preferably in the range of 1.0 to 2.0 g / m ² · 30 sec. 0.5 to 2.4 oil absorption on the parchment paper side
g / m ² · 30 sec, more preferably 1.0 to 2.0 g
By maintaining it in the range of / m ² · 30 sec, the above-mentioned favorable winding property, unwinding property, process passability, and quality stability can be further improved.

[0015]

EXAMPLES Examples and comparative examples will be described below.
The oil absorption of the paper tube used here, the initial winding success rate when winding the yarn around the paper tube, the yarn unwinding property (tail transfer passage rate), and the spots were measured by the following methods. It is.

[Oil Absorbance] According to the provisions of JIS P-8140, one side of the paper core surface paper (parchment paper side) is brought into contact with mineral oil for 30 seconds, and the weight difference per unit area is determined from the weight difference of the surface paper before and after the contact. The amount of oil absorption was calculated and taken as the degree of oil absorption.

[Initial winding success rate] 350 dTex-72F
Winding speed of polyester filament yarn of 3000
In the step of melting and spinning at a rate of m / min, the winding success rate when winding up to 100 paper tubes was taken. A case where the initial winding success rate was 90% or more was regarded as a pass.

[Tail Transfer Passage] The polyester filament yarn obtained in the above-mentioned melt spinning step was false twisted, and the tail transfer passability was evaluated in the case of winding up into 100 paper tubes. The case where the tail transfer passage rate was 95% or more was regarded as acceptable.

[Dyeing spot] Processed yarn 30 after the above false twisting
The book was dyed by knitting a tail knot (about 5 g) and visually inspecting the knitted fabric for the occurrence of dyed spots. Those with a dye spot occurrence rate of 5 or less were judged as acceptable.

Example 1 In the configuration shown in FIGS. 1 and 2, a fluorine-based resin was used as the oil-proof layer 3, and a yarn winding paper tube having an oil absorption of 1.7 g / m ² · 30 sec was produced. The initial winding success rate, the tail transfer rate, and the spots on the paper tube were as follows.

Initial winding success rate: 100% (passed) Tail transition pass rate: 100% (passed) Dyed spot: 1 (passed)

Example 2 In the structure shown in FIGS. 1 and 2, a silicone resin was used as the oil-proof layer 3, and the oil absorption was 1.2 g / m ² · 30 sec.
Was manufactured. The initial winding success rate, the tail transfer rate, and the spots on the paper tube were as follows.

Initial winding success rate: 96% (passed) Tail transition pass rate: 100% (passed) Dyed spot: 0 (passed)

Example 3 In the configuration shown in FIGS. 1 and 2, an art paper was used as the oil-proof layer 3, and a yarn winding paper tube having an oil absorption of 1.9 g / m ² · 30 sec was produced. The initial winding success rate, the tail transfer rate, and the spots on the paper tube were as follows.

Initial winding success rate: 96% (passed) Tail transition pass rate: 100% (passed) Dye spot: 1 (passed)

Example 4 A roll-up paper tube having an oil absorption of 2.2 g / m ² · 30 sec was produced using the roll paper as the oil-proof layer 3 in the configuration shown in FIGS. The initial winding success rate, the tail transfer rate, and the spots on the paper tube were as follows.

Initial winding success rate: 100% (passed) Tail transition pass rate: 95% (passed) Dyed spots: 2 (passed)

Example 5 In the structure shown in FIGS. 1 and 2, a fluorine resin different from that of Example 1 was used for the oil-proof layer 3, and the oil absorption was 0.7 g / g.
A yarn winding paper tube of m ² · 30 sec was produced. The initial winding success rate, the tail transfer rate, and the spots on the paper tube were as follows.

Initial winding success rate: 96% (passed) Tail transition passing rate: 98% (passed) Dyed spot: 1 (passed)

COMPARATIVE EXAMPLE 1 In the configuration of FIGS. 1 and 2, the oil-absorbing degree was 0.4 g by using a fluororesin as the oil-proof layer 3 with the oil-proof layer 3 and the parchment paper 4 arranged in the opposite positions. /
A yarn winding paper tube of m ² · 30 sec was produced. The initial winding success rate, the tail transfer passing rate, and the dye spots of the paper tube were as follows, and the initial winding success rate and the tail transfer passing rate were not good.

Initial winding success rate: 88% (failed) Tail transition passing rate: 85% (failed) Dye spots: 2 (passed)

Comparative Example 2 The paper tube of Comparative Example 1 was coated with parchment paper alone without providing an oil-proof layer, and had an oil absorption of 2.5 g / m ^2.
A 30-second yarn winding paper tube was manufactured. The initial winding success rate, the tail transfer rate, and the spots of the paper tube were as follows. The yarn winding property was good, but the tail transfer rate and the spotting were poor.

Initial winding success rate: 98% (pass) Tail transition pass rate: 89% (fail) Dye spots: 12 pieces (fail)

[0034]

As described above, according to the yarn winding paper tube of the present invention, an oil-proof layer is provided on the outer periphery of the paper tube main body, and parchment paper is adhered to the outer periphery of the oil-proof layer. The surface of the paper tube has an appropriate frictional property with respect to the yarn, and the yarn can be formed in the innermost layer without slipping to obtain a good wound package. In addition, since the oil adhering to the yarn in the innermost layer is not excessively absorbed by the paper tube, the amount of oil adhering from the innermost layer to the outermost layer of the wound package becomes substantially uniform, so that the unwinding property is improved and static electricity is improved. Troubles are eliminated, and furthermore, the yarn passing property in the high-order process is stabilized, and the fluctuation of the running tension is reduced, so that it is possible to obtain a high-quality yarn without spots of dyeing.

[Brief description of the drawings]

FIG. 1 is a side view showing, in partial cross section, a yarn winding paper tube according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line XX in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper core 2 Paper core body 3 Oil-proof layer 4 Parchment paper 5 Winding layer

Claims (5)

[Claims] 1. A yarn winding paper tube in which an oil-proof layer is provided on the outer periphery of a paper cylinder main body, and parchment paper is adhered to the outer periphery of the oil-proof layer. 2. The JIS P on the parchment paper side surface
The oil absorption specified in -8140 is 0.5 to 2.4 g / m ^2.
The yarn winding paper tube according to claim 1, wherein the time is 30 sec. 3. The yarn winding paper tube according to claim 1, wherein the oil-proof layer is made of at least one resin selected from the group consisting of a fluorine resin, a silicone resin and an acrylic resin. 4. The yarn winding paper tube according to claim 1, wherein the oil-proof layer is made of at least one kind of paper selected from the group consisting of art paper, coated paper and roll paper. 5. A yarn winding package in which a synthetic fiber filament yarn with an oil agent is wound and laminated on the yarn winding paper tube according to any one of claims 1 to 4.