CN1174085C - Washing tablet - Google Patents

Abstract

The present invention relates to a detergent tablet which belongs to the field of products of chemical industry. The detergent tablet has the main technical characteristics that nontoionic surface active agents(at most 20%), anionic surface active agents(at most 25%), builders(10 to 60%), bases(20 to 60%), organic acids(10 to 40%), adhesives (2 to 10%), etc. are taken as principal raw materials and are treated by a series of special processes of preheating, granulation, stir, tabletting, baking, etc. to make the detergent tablet. The detergent tablet can cause micro-conduits to be generated in the interior of the tablet when adopted; therefore, water can rapidly infiltrate into the interior of the tablet when in contact with the tablet, and the expansion speed of the tablet when in contact with water is accelerated; consequently, the tablet can be dispersed in a short time. The detergent tablet can save transportation and storage space to a maximum degree, has the advantages of accurate measurement and no dust hazard and the exclusive washing functions of common washing powder and is especially suitable for machine washing.

Description

A kind of washing tablet

The present invention relates to the Chemicals field, especially a kind of washing tablet.

Laundry tablets has obtained using widely in Europe (especially in Germany) and Japan, and the overwhelming majority has used disintegration and effervescive technology that product chance water can be disperseed fast simultaneously, thus convenient dissolving; Great majority have adopted the method for compressing tablet on moulding process, also have minority to adopt the technology of extruding shaping.

Yet there are no like product on the market at home.

The objective of the invention is to make a kind of density laundry series products bigger than concentrated washing powder, this product shows with tablet form, density almost reaches capacity, and has done a little improvement simultaneously on the tablet forming technique, makes it can reach better level aspect forming stability and the disintegration effect.

Technical scheme of the present invention is: with nonionogenic tenside, anion surfactant, washing assistant, alkali, organic acid, tackiness agent etc. is main raw material, through preheating, granulation, stirring, compressing tablet and series of process such as cure and make.

Wherein, can disperse fast in order to make product of the present invention meet water, mainly be the high molecular polymer that adopts a kind of polycarboxylate class or polyvinylpyrrolidone class, relies on its molecular chain chance acute diseases such as cholera and sunstroke expansible character to reach and make the quickly disintegrated purpose of tablet.

The weight percent prescription is as follows:

A: following a kind of or two kinds of tensio-active agent 5-40%

A. following a kind of or two kinds of nonionogenic tensides,

(1) polyethenoxy ether class, its general formula is: RO (CH ₂CH ₂O) _nH, n=3-15, R are C _iH _2i+1I=10-20 or R ' C ₆H ₅, R ' is C _KH _2K+1, K=6-15 or R " and N (CH ₂CH ₂O) _rH, R " be C _{K '}H _{2K '+1}, K '=10-18, r=5-20;

(2) alkyl polyglycoside class.

B. following a kind of or two kinds of anion surfactants:

(1) sulfonate surfactant is as LAS;

(2) Sulfates tensio-active agent.

B: washing assistant 10-60% can adopt tripoly phosphate sodium STPP or 4A zeolite, silicates, nitrilotriacetic acid (NTA), ethylene dinitrilotetra-acetic acid (EDTA) or their mixture.

C: alkali 20-60%, can adopt yellow soda ash, sodium bicarbonate, salt of wormwood, sodium hydroxide.

D: organic acid 10-40%, can adopt hydroxycarboxylic acid such as citric acid, oxalic acid, toxilic acid, tartrate etc.

E: carboxymethyl cellulose is not more than 5%

F: tackiness agent 2-10%, can adopt polyethylene glycols, polycarboxylate class or polyvinylpyrrolidone family macromolecule polymkeric substance.

Main production is as follows:

(1) all raw materials (dezymotizing with essence outer) is preheated to 30-50 degree centigrade;

(2) with detergent raw material input and stirrings such as tensio-active agent, washing assistant, alkali, carboxymethyl cellulose, enzyme, essence;

(3) stir after, add organic acid, tackiness agent etc. more successively, when adding, continue to stir;

(4) etc. above raw material stirring evenly after, can carry out compressing tablet; The weight of each sheet laundry tablets can be from 10-40g (can select the size of mould) as required, and diameter is at 25-45mm, and density is about 1.2g/ml;

(5) tablet of moulding is put into 100-120 ℃ of baking oven, placed after 1-3 minute and take out, pack then.

Because the domestic washing habits overwhelming majority is normal (low) temperature laundering, so the disintegration rate of product is slack-off when the technical difficult points of tablet product is temperature (cold) water washing.And employing the present invention can make water more promptly be penetrated into tablet inside, accelerates the speed of product water-swellable, thereby causes tablet to disperse in very short time, does not influence washing time and effect at all.

From producing and actual service condition, product of the present invention is compared with coventional type and this two classes laundry product of concentrated type, and required production and packaging facilities are simple relatively, and operation is convenient, and greatly degree is saved transportation, memory space; Easy to use, accurate measurement, and do not have dust hazard, and have all washing functions of above-mentioned two series products concurrently, for example, in product, contain supplementary additives such as zymin and essence equally.This product is particularly suitable for machine washing.

Embodiments of the invention are as follows:

A C ₁₂-C ₁₅Fatty alcohol-polyoxyethylene ether (the epoxy adduct number is 9) AEO-9 content 10%

B tripoly phosphate sodium STPP STPP content 15%

C NaCO ₃Content 20%

D NaHCO ₃Content 15%

E Na ₂SiO ₃Content 10%

F citric acid content 20%

G Polyvinylpyrolidone (PVP) PVPP (ISP company provides) content 5.0%

H CMC content 1.0%

I whitening agent content 0.4%

J enzyme content 0.5%

K essence content 0.1%

L 4A zeolite content 3.1%

Fill a prescription through preheating, granulation, stirring, compressing tablet and series of process such as cure and make final finished with this, every heavily about 15g, (general washing needs with two the about 30mm of diameter, the washing of small amount only need be used a slice), put into washing machine, be that disintegratable is finished in two, three minutes after water inlet, thus the normal washing of beginning.

Claims (1)

1. sheet scouring agent is characterized in that: adopt following weight percent prescription:

A: following a kind of or two kinds of tensio-active agent 5-40%

A. following a kind of or two kinds of nonionogenic tensides:

(1) polyethenoxy ether class, its general formula is: RO (CH ₂CH ₂O) _nH, n=3-15, R is: C _iH _2i+1I=10-20 or R ' C ₆H ₅, R ' is C _KH _2K+1, K=6-15 or R " and N (CH ₂CH ₂O) _rH, R " be C _{K '}H _{2K '+1}, K '=10-18, r=5-20;

(2) alkyl polyglycoside class;

B. following a kind of or two kinds of anion surfactants:

(1) sulfonate surfactant;

(2) Sulfates tensio-active agent;

B: but washing assistant 10-60% washing assistant tripoly phosphate sodium STPP, silicates, nitrilotriacetic acid (NTA), ethylene dinitrilotetra-acetic acid (EDTA) or 4A zeolite or their mixture;

C: alkali 20-60% is selected from: yellow soda ash, sodium bicarbonate, salt of wormwood, sodium hydroxide;

D: organic acid 10-40%, can adopt citric acid, oxalic acid, toxilic acid or tartrate;

E: carboxymethyl cellulose is not more than 5%

F: tackiness agent 2-10%, adopt polyethylene glycols or the high molecular polymer of polycarboxylate class or polyvinylpyrrolidone class or their mixture.