TW202001033A - Treatment agent for viscose rayon non-woven fabrics, and viscose rayon - Google Patents

Abstract

A treatment agent for viscose rayon non-woven fabrics according to the present invention is characterized by comprising a polyhydric alcohol having 2 to 6 hydroxyl groups in the molecule thereof, a fatty acid having 12 to 24 carbon atoms and a nonionic surfactant, and also characterized by being adhered onto viscose rayon fibers which are raw material fibers of a non-woven fabric upon use. A viscose rayon according to the present invention is characterized by having, attached thereon, the treatment agent for viscose rayon non-woven fabrics.

Description

Treatment agent for mucous rayon nonwoven fabric and mucus rayon

The present invention relates to a treatment agent for non-woven fabric of mucous rayon which can impart excellent process passability without damaging the hydrophilicity of mucous rayon and a mucous rayon to which the treatment agent is attached.

In general, as raw material fibers used for nonwoven fabrics, natural fibers such as kapok fibers, regenerated fibers such as rayon, and synthetic resins such as polyolefins can be used. In order to impart various properties such as lubricity and bundling necessary to the raw fiber when manufacturing the nonwoven fabric, a treatment agent containing a nonwoven fabric containing a surfactant or the like may be adhered to the surface of the raw fiber.

Conventionally, the treatment agent for nonwoven fabrics disclosed in Patent Documents 1 and 2 is known. Patent Document 1 discloses a treatment agent for non-woven fabric, the composition of which includes mineral oil, fatty acid ester, polyoxyalkylene polyol fatty acid ester, and the like. Patent Document 2 discloses a treatment agent for water needle method (spunlace), the composition of which includes polyol fatty acid ester sulfate and the like.

Prior technical literature Patent Literature Patent Literature 1: International Publication No. 2016/104106 Patent Literature 2: Japanese Patent Laid-Open No. 2014-240530

Problems to be solved by the invention However, when these conventional nonwoven fabric treatment agents are applied to mucous rayon nonwoven fabrics, there are problems that the hydrophilicity of the mucous rayon fabric is impaired, and the process passability of the nonwoven fabric manufacturing machine, especially at high speed, is poor.

The problem to be solved by the present invention is to provide a treatment agent for mucous rayon nonwoven fabric and a treatment agent for mucus rayon nonwoven fabric, which can not damage the hydrophilicity of the mucous rayon nonwoven fabric and impart excellent process passability to the mucus rayon rayon .

Means to solve the problem The present inventors conducted studies to solve the above-mentioned problems, and as a result, they found that the treatment agent for mucous rayon nonwoven fabric containing a specific polyol, a specific fatty acid, and a nonionic surfactant is particularly effective.

In order to achieve the above object, one aspect of the present invention provides a treatment agent for mucous rayon nonwoven fabrics, characterized in that it contains a polyol having 2 to 6 hydroxyl groups in the molecule, a fatty acid having 12 to 24 carbon atoms, and a nonionic interface Active agent; used to attach to the mucous rayon fiber of the raw fiber of the non-woven fabric (excluding the application as a cleaning or washing complex).

It is preferable that the treatment agent for the mucous rayon nonwoven fabric contains the polyol 0.1 to 10% by mass when the total content of the polyol, the fatty acid, and the nonionic surfactant is 100% by mass, The ratio of the fatty acid 0.1 to 10% by mass and the nonionic surfactant 80 to 95% by mass.

Preferably, the treatment agent for mucous rayon nonwoven fabric further contains lubricating oil, and the lubricating oil contains at least one oily component selected from hydrocarbons, greases, esters, and polysiloxane, and is liquid at 70°C. .

Preferably, the treatment agent for the mucous rayon nonwoven fabric contains the polyol 0.1 to 100% when the total content ratio of the polyol, the fatty acid, the nonionic surfactant, and the lubricating oil is 100% by mass. The ratio of 10 mass%, the fatty acid 0.1-10 mass%, the nonionic surfactant 50-95 mass%, and the lubricating oil 1-40 mass%.

It is preferable that the above-mentioned treatment agent for mucous rayon nonwoven fabric further contains an anionic surfactant.

It is preferable that the treatment agent for the mucous rayon nonwoven fabric contains the polyol when the total content ratio of the polyol, the fatty acid, the nonionic surfactant, and the anionic surfactant is 100% by mass. A ratio of 0.1 to 10% by mass, 0.1 to 10% by mass of the fatty acid, 50 to 95% by mass of the nonionic surfactant, and 1 to 30% by mass of the anionic surfactant.

It is preferable that the above-mentioned treatment agent for mucous rayon nonwoven fabric further contains anionic surfactant in addition to lubricating oil.

Preferably, the treatment agent for the mucous rayon nonwoven fabric, when the total content ratio of the polyol, the fatty acid, the nonionic surfactant, the lubricating oil, and the anionic surfactant is 100% by mass, Contains the polyol 0.1 to 10% by mass, the fatty acid 0.1 to 10% by mass, the nonionic surfactant 50 to 95% by mass, the lubricating oil 1 to 40% by mass, and the anionic surfactant 1 to 30% by mass proportion.

Preferably, the above-mentioned treatment agent for mucous rayon nonwoven fabric has an acid value of 0.1-30, a saponification value of 20-80, and a hydroxyl value of 80-200.

In addition, another aspect of the present invention provides a mucous rayon, characterized in that the above-mentioned treatment agent for mucus rayon nonwoven fabric is attached.

Invention effect According to the present invention, it is possible to impart excellent process passability to mucus rayon without compromising the hydrophilicity of the mucus rayon.

(First embodiment) First, the first embodiment of the treatment agent for a mucous rayon nonwoven fabric (hereinafter referred to as a treatment agent) embodied in the present invention will be described. The treatment agent of this embodiment (excluding its application as a cleaning or washing complex) is a slime containing the following polyol, the following fatty acid, and a nonionic surfactant, and is used to adhere to the raw fiber of the nonwoven fabric On the rayon fiber.

Polyol is a polyol having 2 to 6 hydroxyl groups in the molecule. One type of these polyols may be used alone, or two or more types may be used in combination.

Fatty acids are fatty acids with 12 to 24 carbon atoms. One type of these fatty acids may be used alone, or two or more types may be used in combination.

The polyhydric alcohol used for the treatment agent of this embodiment is a polyhydric alcohol having 2 to 6 hydroxyl groups in the molecule as described above. Specific examples of the polyhydric alcohol having 2 to 6 hydroxyl groups in the molecule include, for example, ethylene glycol, propylene glycol, pentanediol, hexanediol, glycerin, neopentaerythritol, sorbitol, and sorbitan.

Specific examples of fatty acids having 12 to 24 carbon atoms include, for example, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, arachidic acid, oleic acid, and tartaric acid.

The type of nonionic surfactant used in the treatment agent of this embodiment is not particularly limited, and examples thereof include (1) polyoxyethylene (number of ethylene oxide units n (=addition mole number of ethylene oxide)) 10, that is n=10) lauryl ether, polyoxyethylene (n=20) stearyl ether, polyoxyethylene (n=30) oleyl ether, polyoxyethylene (n=10) alkyl ( Carbon number 12-13) ether, polyoxyalkylene (n=10, the number of propylene oxide units m (=addition mole number of propylene oxide) is 10, that is, m=10) lauryl ether and other saturated Or polyoxyalkylene alkyl (or alkenyl) ether obtained by addition reaction of unsaturated aliphatic monohydric alcohol and alkylene oxide; (2) polyoxyethylene (n=10) sorbitan mono Lauryl ester, polyoxyethylene (n=20) sorbitan monooleate, polyoxyethylene (n=20) sorbitan monostearate, polyoxyethylene (n=20) sorbitan Polyoxyalkylene polyol ester obtained by addition reaction of aliphatic polyhydric alcohol such as tristearate with alkylene oxide; (3) Polyoxyethylene (n=10) lauryl ester, polyoxyethylene (n = 10) Stearyl esters, polyoxyethylene (n=20) oleyl esters, polyoxyalkylene (n=10, m=10) stearyl esters and other saturated or unsaturated fatty acids are added with alkylene oxides Polyoxyalkylene alkyl (or alkylene) ester obtained by the synthesis reaction; (4) Polyethylene glycol (molecular weight 400) monooleate, polyethylene glycol (molecular weight 600) dioleate, poly Polyalkylene glycol alkyl (or alkylene) esters obtained by the addition reaction of saturated or unsaturated fatty acids such as ethylene glycol (molecular weight 1000) monostearate and polyalkylene glycol; (5 ) Polyoxyethylene (n=30) castor oil ester, polyoxyalkylene (n=10, m=10) castor oil ester, polyoxyethylene (n=10) hardened castor oil ester and other oils and alkylene oxides Fatty acid esters of polyoxyalkylene obtained by addition reaction; (6) Polyoxyethylene (n=10) octyl phenol ether, polyoxyethylene (n=10) nonyl phenol ether and other alkylphenols and cyclic Polyoxyalkylene alkyl phenol ethers obtained by addition reaction of oxanes; (7) polyoxyethylene (n=5) octylamino ether, polyoxyethylene (n=8) lauryl amino ether , Polyoxyethylene (n=20) stearyl amino ethers and other saturated or unsaturated aliphatic amines and alkylene oxides by the addition reaction of polyoxyalkylene amino ethers obtained. One type of these nonionic surfactants may be used alone, or two or more types may be used in combination. In addition, when the alkylene oxides have ethylene oxide and propylene oxide, the addition form of ethylene oxide and propylene oxide can be block addition, random addition, and block addition and random There is no particular restriction on any combination of bonuses.

In the treatment agent of this embodiment, the content ratio of the above-mentioned polyol, fatty acid, and nonionic surfactant in the treatment agent is not limited. When the total content of the polyol, fatty acid, and nonionic surfactant is 100% by mass, the treatment agent preferably contains polyol 0.1 to 10% by mass, fatty acid 0.1 to 10% by mass, and nonionic interface The active agent is composed of 80 to 95% by mass. With this configuration, the effect of the present invention can be further improved.

The treatment agent of this embodiment can further contain a lubricating oil containing at least one oily component selected from hydrocarbons, oils, fats, esters, and polysiloxane, and is liquid at 70°C. By blending this lubricating oil, the effect of the present invention can be further improved. One type of these oily components may be used alone, or two or more types may be used in combination.

The state of the lubricating oil at 70°C can be measured by JIS K 0064. JIS K 0064 has a general method for determining the melting point and melting range of chemical products above normal temperature and below 300°C.

Specific examples of hydrocarbons include mineral oil and paraffin.

Specific examples of oils and fats include castor oil, sesame oil, rosin oil, palm oil, palm kernel oil, coconut oil, rapeseed oil, lard, tallow, whale oil, and hardened oils of these.

Specific examples of esters include, for example, butyl stearate, stearyl stearate, glycerol monooleate, glycerol trioleate, sorbitan monolaurate, sorbitan Trilauryl alcohol, sorbitan monooleate, sorbitan trioleate, sorbitan monostearate, sorbitan tristearate, etc.

Specific examples of the polysiloxane include dimethyl polysiloxane, amine-modified polysiloxane, polyoxyalkylene-modified polysiloxane, and the like.

In the treatment agent of this embodiment, the content ratio of the above-mentioned polyol, fatty acid, nonionic surfactant, and lubricating oil in the treatment agent is not limited. When the total content of the above-mentioned polyol, fatty acid, nonionic surfactant, and lubricating oil is 100% by mass, the treatment agent preferably contains 0.1% to 10% by mass of polyol, 0.1% to 10% by mass of fatty acid, and It is made up of a ratio of 50 to 95% by mass of ionic surfactant and 1 to 40% by mass of lubricating oil. With this configuration, the effect of the present invention can be further improved.

The treatment agent of this embodiment is preferably formed by further containing an anionic surfactant. By blending anionic surfactants, the carded web obtained will show more excellent process passability. In particular, the antistatic properties of the carded web will be more improved. The type of anionic surfactant is not particularly limited, and examples thereof include (1) alkali metal lauryl phosphate, alkali metal cetyl phosphate, alkali metal oleyl phosphate, alkali metal stearyl phosphate Alkali metal salts of phosphate esters of aliphatic alcohols such as salts; (2) alkali metal salts of polyoxyethylene (n=5) lauryl ether phosphate, polyoxyethylene (n=5) oleyl ether phosphate Alkali metal salt, alkali metal salt of polyoxyethylene (n=10) stearyl ether phosphate and other aliphatic alcohols are added with phosphoric acid selected from at least one kind of alkylene oxides selected from ethylene oxide and propylene oxide Alkali metal salt of ester; (3) alkali metal salt of lauryl sulfonate, alkali metal salt of oleyl sulfonate, alkali metal salt of stearyl sulfonate, etc. Alkali metal salt; (4) alkali metal salt of lauryl sulfate, alkali metal salt of oleyl sulfate, alkali metal salt of stearyl sulfate, etc. alkali metal salt of sulfate of aliphatic alcohols; (5 ) Polyoxyethylene (n=3) alkali metal salt of lauryl ether sulfate, polyoxyethylene (n=5) alkali metal salt of lauryl ether sulfate, polyoxyalkylene (n=3, m=3 ) Alkali metal salt of lauryl ether sulfate, alkali metal salt of polyoxyethylene (n=3) oleyl ether sulfate, fat of alkali metal salt of polyoxyethylene (n=5) oleyl ether sulfate Alcohols are added with alkali metal salts of sulfates of at least one alkylene oxide selected from ethylene oxide and propylene oxide; (6) alkali metal salts of castor oil fatty acid sulfate and sesame oil fatty acid sulfate Alkali metal salt, alkali metal salt of rosin oil fatty acid sulfate, alkali metal salt of soybean oil fatty acid sulfate, alkali metal salt of rapeseed oil fatty acid sulfate, alkali metal salt of palm oil fatty acid sulfate, alkali of lard fatty acid sulfate Metal salt, alkali metal salt of tallow fatty acid sulfate, alkali metal salt of whale oil fatty acid sulfate, alkali metal salt of fatty acid sulfate; (7) alkali metal salt of castor oil sulfate, alkali of sesame oil sulfate Metal salt, alkali metal salt of sulfate ester of rosin oil, alkali metal salt of sulfate ester of soybean oil, alkali metal salt of sulfate ester of rapeseed oil, alkali metal salt of sulfate ester of palm oil, alkali metal salt of sulfate ester of lard oil Salt, alkali metal salt of tallow sulfate, alkali metal salt of whale oil, etc. alkali metal salt of sulfate of fats and oils; (8) alkali metal salt of lauric acid, alkali metal salt of oleic acid, stearic acid Alkali metal salts and other fatty acid alkali metal salts.

In the treatment agent of this embodiment, the content ratio of the above-mentioned polyol, fatty acid, nonionic surfactant, and anionic surfactant in the treatment agent is not limited. When the total content of the polyol, fatty acid, nonionic surfactant, and anionic surfactant is 100% by mass, the treatment agent preferably contains 0.1% to 10% by mass of polyol and 0.1% to 10% by mass of fatty acid. , Nonionic surfactant 50-50% by mass, and anionic surfactant 1-30% by mass. With this configuration, the effect of the present invention can be further improved.

In the treatment agent of the present embodiment, the content ratio of the above-mentioned polyol, fatty acid, nonionic surfactant, lubricating oil, and anionic surfactant in the treatment agent is not limited. When the total content of the above-mentioned polyol, fatty acid, nonionic surfactant, lubricating oil, and anionic surfactant is 100% by mass, the treatment agent preferably contains 0.1% to 10% by mass of polyol and 0.1% to fatty acid. 10% by mass, nonionic surfactant 50-95% by mass, lubricating oil 1-40% by mass, and anionic surfactant 1-30% by mass. With this configuration, the effect of the present invention can be further improved.

The treatment agent of this embodiment is not particularly limited in terms of acid value, saponification value, and hydroxyl value, but preferably has an acid value of 0.1 to 30, a saponification value of 20 to 80, and a hydroxyl value of 80 to 200. By limiting the respective values within the range of the values, the effect of the present invention can be further improved. In particular, when the saponification value is 20 to 80, more excellent process passability can be obtained. It is possible to suppress, for example, spots and obtain a uniform card web.

The acid value, saponification value, and hydroxyl value defined here can be measured by JIS K 0070. JIS K 0070 stipulates a general method for testing the acid value, saponification value, ester value, iodine value, hydroxyl value, and unsaponifiable matter of oil products, their derivatives, and chemical products containing them.

(Second embodiment) Next, a second embodiment of the mucous rayon embodying the present invention will be described. The mucous rayon of this embodiment is a mucous rayon to which the treatment agent of the first embodiment is attached. As the adhesion method, well-known methods such as dipping method, spray method, roller method, etc. can be applied. In addition, the process to which the treatment agent is attached is not particularly limited, and examples thereof include a post-refining process, a textile process, and the like.

The form of the treatment agent when the treatment agent of the first embodiment is attached to the mucous rayon fiber can be, for example, an organic solvent solution or an aqueous solution. For the treatment method of the mucous rayon fiber, it is preferable to dilute the treatment agent of the first embodiment with water into an aqueous solution having a concentration of 0.5 to 20% by mass, and attach the aqueous solution to the mucous rayon fiber of the raw fiber of the nonwoven fabric. The treatment agent of the first embodiment does not contain a solvent at a ratio of 0.1 to 1% by mass. When the slime rayon to which the treatment agent of the first embodiment is adhered is further manufactured into a nonwoven fabric by a carding machine, the type of carding machine is not particularly limited, and examples thereof include a pin-card type carding machine, a combined carding machine, and a card Cotton roller, etc.

According to the treatment agent and the mucous rayon of the above embodiment, the following effects can be obtained.

(1) The above embodiment constitutes a treatment agent containing a polyhydric alcohol having 2 to 6 hydroxyl groups in the molecule, a fatty acid having 12 to 24 carbon atoms, and a nonionic surfactant. Therefore, it is possible to impart excellent process passability to the mucus rayon without compromising the hydrophilicity of the mucus rayon. In particular, it is possible to impart excellent antistatic properties to the card web that has passed through the manufacturing process, while suppressing moire, and obtaining a uniform card web. In addition, in the nonwoven fabric manufacturing machine which has been speeding up in recent years, it is also possible to give mucus rayon excellent process passability. In addition, the treatment agent can exert good emulsion stability.

However, the above embodiment can also be changed as follows.

・Within the range that does not impair the effects of the present invention, the treatment agent of the above-described embodiment can be further blended with components that can be commonly used as treatment agents such as adhesives, antioxidants, ultraviolet absorbers, etc., to maintain the stability of the quality of the treatment agent Chemical or antistatic agent.

Examples

In order to more specifically explain the structure and effects of the present invention, examples and the like are given below, but the present invention is not limited to these examples. In the following description of Examples and Comparative Examples, parts represent parts by mass and% represents mass%.

Test category 1 (Preparation of treatment agent for mucous rayon nonwoven fabric)

・Preparation of treatment agent for mucous rayon nonwoven fabric (Example 1) To become sorbitol (A-3) 5%, stearic acid (B-3) 5%, polyoxyethylene (n=20) sorbitan monostearate (C-5) 16%, polyoxy Ethylene (n=20) sorbitan monooleate (C-6) 46%, tallow (D-4) 10%, polyoxyethylene (n=5) lauryl ether phosphate potassium salt (E- 2) Add 900 parts of water to 100 parts of the mucous rayon textile treatment agent prepared by 10% and 8% potassium oleate (E-8), and stir at 50°C to prepare a treatment containing 10% nonwoven Agent (Example 1).

・Measurement of acid value, saponification value and hydroxyl value of the treatment agent for mucous rayon nonwoven fabric (Example 1) The acid value, saponification value, and hydroxyl value of the treatment agent for mucous rayon nonwoven fabric of Example 1 were measured by JIS K 0070.

・Preparation of treatment agent for mucous rayon nonwoven fabric (Examples 2 to 27 and Comparative Examples 1 to 5) The treatment agents of Examples 2 to 27 and Comparative Examples 1 to 5 were prepared in the same procedure as the preparation of the treatment agent for mucous rayon nonwoven fabric of Example 1. Among them, the types of polyols, fatty acids, nonionic surfactants, lubricating oils, and anionic surfactants used, and the content ratio (%) of each component in the treatment agent are shown in the "polyol" column of Table 1, "Fatty acid "Column, "non-ionic surfactant" column, "lubricating oil" column and "anionic surfactant" column are changed as appropriate. The acid value, saponification value, and hydroxyl value of the obtained treatment agent were measured according to JIS K 0070, and the results are shown in the "acid value" column, "saponification value" column, and "hydroxyl value" column of Table 1.

Table 1

The codes in Table 1 indicate: A-1: Ethylene glycol A-2: Glycerin A-3: Sorbitol A-4: Sorbitan B-1: Lauric acid B-2: Oleic acid B-3: Stearic acid B-4: Yushu acid C-1: Polyoxyethylene (n=10) lauryl ether C-2: Polyoxyethylene (n=20) stearyl ether C-3: Polyoxyethylene (n=30) oleyl ether C-4: Polyoxyethylene (n=20) sorbitan monolauryl ester C-5: Polyoxyethylene (n=20) sorbitan monostearate C-6: Polyoxyethylene (n=20) sorbitan monooleate C-7: Polyoxyethylene (n=20) sorbitan tristearate C-8: Polyoxyethylene (n=10) lauryl ester C-9: Polyoxyethylene (n=20) stearyl ester C-10: Polyethylene glycol (molecular weight 400) monooleate D-1: Mineral oil (viscosity 30 seconds) D-2: Mineral oil (viscosity 80 seconds) D-3: Mineral oil (viscosity 120 seconds) D-4: Butter D-5: Glycerol monooleate D-6: Sorbitan monooleate D-7: Sorbitan tristearate D-8: Sorbitan monostearate D-9: Paraffin D-10: Amino silicone E-1: Potassium salt of lauryl phosphate E-2: Polyoxyethylene (n=5) lauryl ether phosphate potassium salt E-3: C12-13 alcohol sulfonate sodium salt E-4: sodium salt of tallow sulfate E-5: Sodium salt of rosin oil fatty acid sulfate E-6: Sodium lauryl sulfate E-7: Polyoxyethylene (n=5) sodium lauryl ether sulfate sodium salt E-8: Potassium oleate

Test Category 2 (Attachment of Mucous rayon nonwoven fabric treatment agent to mucus rayon fiber)

The aqueous solution of the treatment agent for mucous rayon nonwoven fabric of each example described in Table 1 was further diluted to prepare a 1% emulsion of the treatment agent for mucus rayon nonwoven fabric. Each oil-based emulsion was adhered to the mucous rayon fiber with a fineness of 1.3×10 ^-4 g/m (1.2 Danny) and a fiber length of 38 mm by spraying oil. The adhesion amount (removed solvent) was 0.3% by mass at 80° Hot air dryer for 2 hours. Then, it was wetted overnight in an atmosphere of 25° C.×40% RH to obtain a treated mucous rayon to which a treatment agent for mucous rayon nonwoven fabric was attached. The obtained mucus rayon was evaluated for the characteristics of the high-speed carding machine for hydrophilicity and process passability. The characteristics of the high-speed card are specifically evaluated for the antistatic properties and the shape of the card web as described below.

Test category 3 (evaluation of treatment agent for mucous rayon nonwoven fabric)

・Evaluation of hydrophilicity Using the processed mucus rayon obtained above, the measurement was carried out by the EDANA method (NWSP 010.1.RO (15)). The results of this evaluation are shown in the "Hydrophilic" column of Table 1.

・Evaluation criteria for hydrophilicity ◎ (Excellent): Hydrophilicity is equivalent to untreated mucus ○ (Good): The hydrophilicity is slightly inferior to that of untreated mucus, but it does not pose a problem × (Poor): The hydrophilicity is inferior to that of untreated mucus, which is a problem

・Evaluation of antistatic properties Using 10 kg of the processed mucus obtained above, it was used in a pin-plate carding machine (manufactured by Fenghe Industrial Co., Ltd.) under an atmosphere of 20° C.×40% RH, and the spinning speed = 140 m/min. by. The static electricity of the spun card web was determined based on the following criteria. The results of this evaluation are shown in the “antistatic properties” column of Table 1.

・Antistatic evaluation criteria ◎(Excellent): Below 2kV ○ (good): over 2kV and below 4kV × (bad): greater than 4Kv

・Evaluation of card shape Using 10 kg of the processed mucus obtained above, it was used in a pin-card carding machine (manufactured by Fenghe Industrial Co., Ltd.) under an atmosphere of 30° C.×70% RH, under the condition of spinning speed=140 m/min. by. The appearance of the spun card web was judged by the following criteria. The evaluation results are shown in the "web shape" column of Table 1.

・Evaluation criteria for card web shape ◎ (Excellent): Completely free of markings and very uniform ○ (good): It is confirmed that there are some spots, but it does not pose a problem × (Bad): Many markings can be confirmed, causing problems

・Emulsion stability evaluation The aqueous solution containing the 10% nonwoven fabric treatment agent prepared in Test Category 1 was allowed to stand at 50°C for 3 days, and the appearance of the aqueous solution was visually judged. The evaluation results are shown in the "Emulsion Stability" column of Table 1.

・Evaluation criteria for emulsion stability ◎ (Excellent): No particle precipitation at all, very uniform ○ (good): It is confirmed that some fine particles are deposited, but it does not pose a problem × (Bad): Many particles are deposited, which is a problem

It is also clear from the results in Table 1 that the treatment agent of the present invention can not damage the hydrophilicity of mucous rayon, and can also give mucus rayon excellent process passability in high-speed machines in recent years, and exert Good emulsion stability.

Claims (10)

A treatment agent for mucous rayon nonwoven fabric, characterized by: Contains a polyol with 2 to 6 hydroxyl groups in the molecule, a fatty acid with a carbon number of 12 to 24, and a nonionic surfactant; used to attach to the mucous rayon fiber of the raw fiber of the nonwoven fabric (excluded as washing or washing Use of complexes). The treatment agent for mucous rayon nonwoven fabric according to claim 1, wherein, When the total content of the polyhydric alcohol, the fatty acid, and the nonionic surfactant is 100% by mass, the polyhydric alcohol is 0.1 to 10% by mass, the fatty acid is 0.1 to 10% by mass, and the nonionic interface is included The proportion of active agent is 80 to 95% by mass. The treatment agent for mucous rayon nonwoven fabric according to claim 1, wherein, Furthermore, it contains a lubricating oil containing at least one oily component selected from the group consisting of hydrocarbons, greases, esters, and polysiloxane, and is in a liquid state at 70°C. The treatment agent for mucous rayon nonwoven fabric according to claim 3, wherein, When the total content of the polyol, the fatty acid, the nonionic surfactant, and the lubricating oil is 100% by mass, the polyol is contained at 0.1 to 10% by mass, the fatty acid is at 0.1 to 10% by mass, The proportion of the nonionic surfactant is 50 to 95% by mass and the above lubricating oil is 1 to 40% by mass. The treatment agent for mucous rayon nonwoven fabric according to claim 1, wherein, Furthermore, it contains an anionic surfactant. The treatment agent for mucous rayon nonwoven fabric according to claim 5, wherein, When the total content of the polyol, the fatty acid, the nonionic surfactant, and the anionic surfactant is 100% by mass, the polyol is contained at 0.1 to 10% by mass and the fatty acid is at 0.1 to 10% by mass. The ratio of the nonionic surfactant to 50 to 95% by mass and the anionic surfactant to 1 to 30% by mass. The treatment agent for mucous rayon nonwoven fabric according to claim 3, wherein, Furthermore, it contains an anionic surfactant. The treatment agent for mucous rayon nonwoven fabric according to claim 7, wherein, When the total content ratio of the polyol, the fatty acid, the nonionic surfactant, the lubricating oil, and the anionic surfactant is 100% by mass, the polyol is contained at 0.1 to 10% by mass and the fatty acid is 0.1 -10% by mass, 50% to 95% by mass of the nonionic surfactant, 1% to 40% by mass of the lubricating oil, and 1% to 30% by mass of the anionic surfactant. The treatment agent for mucous rayon nonwoven fabric according to any one of claims 1 to 8, wherein, The acid value is 0.1-30, the saponification value is 20-80, and the hydroxyl value is 80-200. A mucus rayon, characterized by: The treatment agent for the mucous rayon nonwoven fabric according to any one of claims 1 to 9 is attached.